Sigma 12-24mm f/4.5-5.6 EX DG ASP HSM Specifikáció

Sigma 12-24mm f/4.5-5.6 EX DG ASP HSM Tesztek

Sigma 12-24mm f/4.5-5.6 EX DG ASP HSM a hírekben

• Tamron SP AF60mm f/2.0 Di-II MACRO
• Nikkor AF-S DX Micro 85mm F3,5G ED VR
• Sigma 17-70mm f/2,8-4 DC OS HSM MACRO
• Nagy fényerejű Carl Zeiss 35mm/F2 Canonra
• Sony SAL2875 28-75mm F2.8 SAM
• Carl Zeiss Distagon T* 28mm f/2
• Négy új ZuikoDigital objektív: 12-60mm, 50-200mm, 14-35mm, 70-300mm
• Négy új ZuikoDigital objektív: 12-60mm, 50-200mm, 14-35mm, 70-300mm
• Négy új ZuikoDigital objektív: 12-60mm, 50-200mm, 14-35mm, 70-300mm
• Négy új ZuikoDigital objektív: 12-60mm, 50-200mm, 14-35mm, 70-300mm
• Pentax DA 18-250mm/F3,5-6,3 ED AL [IF]
• Canon EF 200mm/F2,0 L IS és 800mm/F5,6 L IS
• Canon EF 200mm/F2,0 L IS és 800mm/F5,6 L IS
• Stabilizátoros Leica ultrazoom
• Leica D VARIO-ELMAR 14-50mm/F3.8-5.6 MEGA O.I.S.
• Tokina AT-X 35mm f/2,8 Macro DX késés
• Sigma 18-200mm/F3,5-5,6 DC Nikonokhoz
• Tamron 70-300 mm/F4-5,6 Di LD Macro fókuszmotorral
• Nikkor fényerős fix teleobjektívek AF-S 400mm/F2.8 VR, 500mm/F4 VR, 600mm/F4 VR
• Nikkor fényerős fix teleobjektívek AF-S 400mm/F2.8 VR, 500mm/F4 VR, 600mm/F4 VR
• Nikkor fényerős fix teleobjektívek AF-S 400mm/F2.8 VR, 500mm/F4 VR, 600mm/F4 VR
• 3 új Canon objektív: 14mm/F2.8 L II, 18-55mm IS, 55-250mm IS
• 3 új Canon objektív: 14mm/F2.8 L II, 18-55mm IS, 55-250mm IS
• 3 új Canon objektív: 14mm/F2.8 L II, 18-55mm IS, 55-250mm IS
• Minőségi Nikkor AF-S 14-24mm és 24-70mm nagy fényerővel
• Minőségi Nikkor AF-S 14-24mm és 24-70mm nagy fényerővel
• Carl Zeiss Distagon T* 28mm f/2 EF bajonettel
• Tamron SP AF17-50mm f/2.8 XR Di II VC LD Aspherical
• Carl Zeiss Distagon T* 21mm F2,8 ZE Canonra
• Carl Zeiss Distagon T* 18mm f/3,5 Canonra
• Stabilizált Sigma 70-300mm f/4-5,6 DG OS
• Két új M. Zuiko Digital objektív
• Két új M. Zuiko Digital objektív
• Tokina 11-16mm/f2,8 DX Sony gépekhez
• Hamarosan itt az új Sigma 17-70mm
• Canon EF 70-200mm F2,8L IS II USM
• smc Pentax D FA 100mm F2.8 WR Macro
• Nikkor AF-S 300mm F2,8G ED VR II és TC-20E III.
• Carl Zeiss optikák Canon csatlakozással
• Carl Zeiss Planar T* 85mm/1,4 ZF.2 és 50mm/1,4 ZF.2
• Carl Zeiss objektívek CPU-val
• Carl Zeiss objektívek CPU-val
• Carl Zeiss objektívek CPU-val
• Carl Zeiss objektívek CPU-val
• Carl Zeiss objektívek CPU-val
• Sigma 70-300mm F4,0-5,6 DG OS Sony és Pentax csatlakozással
• Tamron 17-50mm/F2,8 Di-II VC LD Canonhoz is
• Nikkor AF-S 16-35mm f/4 G ED VR
• Nikkor AF-S 24mm f/1.4G ED
• Pentax és Sony változatban a Sigma 17-70mm
• Voigtländer APO-LANTHAR 90mm F3,5 SL-II
• Új FLD lencsetag a Sigma objektíveiben
• Új FLD lencsetag a Sigma objektíveiben
• Új FLD lencsetag a Sigma objektíveiben
• Sony bajonettre is csatlakozik a Tokina 11-16mm
• Sigma APO 50-500mm f4.5-6.3 DG OS HSM
• Sigma 85mm f/1.4 EX DG HSM
• Sigma 17-50mm F2.8 EX DC OS HSM
• Sigma 8-16mm f4.5-5.6 DC HSM
• Carl Zeiss Planar T* 85mm/1,4 ZF.2 és 50mm/1,4 ZF.2
• Sigma APO 70-200mm F2.8 EX DG OS HSM
• Hamarosan boltokban az új Canon 70-200mm F2,8L IS
• LUMIX G Vario 14-42mm F3,5-5,6 ASPH. MEGA O.I.S.

Other reviews

• Sigma 12-24mm f/4.5-5.6 EX DG ASP HSM teszt a www.ephotozine.com oldalon (angol)
• Sigma 12-24mm f/4.5-5.6 EX DG ASP HSM teszt a www.pbase.com oldalon (angol)
• Sigma 12-24mm f/4.5-5.6 EX DG ASP HSM teszt a www.pbase.com oldalon (angol)
• Sigma 12-24mm f/4.5-5.6 EX DG ASP HSM teszt a pixinfo.com oldalon (magyar)
• Sigma 12-24mm f/4.5-5.6 EX DG ASP HSM teszt a www.digineff.cz oldalon (cseh)
• Sigma 12-24mm f/4.5-5.6 EX DG ASP HSM teszt a www.photozone.de oldalon (angol)
• Sigma 12-24mm f/4.5-5.6 EX DG ASP HSM teszt a www.fotopolis.pl oldalon (lengyel)
• Sigma 12-24mm f/4.5-5.6 EX DG ASP HSM teszt a www.slrgear.com oldalon (angol)

Sigma 12-24mm f/4.5-5.6 EX DG ASP HSM Olvasói tesztek

Leghasznosabb olvasói vélemények az Amazonról

Unique Ultra-Wide Angle Lens But Poor Sigma Quality Control

2006. július 03.

There's nothing else this wide for use on a full-frame 35mm camera or digital such as the Canon 5D. It's so wide on a full-frame that you can almost see behind you (well not quite, but close to 180 degree field of view). It is not a fisheye, so straight lines stay straight. There is some minor vignetting at 12mm but less than the Canon 17-40 L-lens I had at 17mm. This lens is pushing the limits of physics so it is not as sharp as some lenses but it takes in so much more of the view and provides a crisp image all the way to the corners.

For use on a cropped sensor camera, such as the XT, 20D or 30D a better choice may be the Canon 10-22mm which is uber-sharp in the middle of the frame. The Canon, however, gives fuzzy images on the sides when wide open but sharpens up when stopped down to f8 or more. My third copy of the Sigma lens is less sharp than the Canon in the center of the frame but is sharper starting about halfway to the edge when both lenses are wide open. Near the edges of the frame the Canon gives a dark and mushy image when wide open at 12mm while the Sigma is only slightly less sharp than at the center - truly amazing!

Unfortunately, Sigma lenses are seemingly sold "as-is" with wide sample variations. The autofocus died on my first copy of the lens after less than 30 pictures. The second copy had poor optics with soft and fuzzy pictures even when manually focused. The third copy is sharp at 12mm, even wide open, all the way to the edges, but only if manually focused. At 12mm the lens autofocuses too far away when an object is close and too close for distant objects. At 24mm it autofocuses right on but is softer than at 12mm. I've decided to keep it since it is easy to manually focus. The depth of focus is large at 12mm. For objects further than a few meters away when using 12mm just set the lens to infinity and everything from a few feet to infinity is in focus even at the edges of the frame and in the corners. The lens has a 4-year warranty so I may send it in to Sigma for calibration later.

Pros: (1) Unique ultra-wide angle perspective on a full-frame camera. (2) A good copy will be optically sharp all the way across a full frame, even wide open. Further, there's virtually no purple chromatic aberation near the edges of dark objects with bright backgrounds. (3) Nice build quality with good finish and large smooth focus ring. (4) Straight lines stay straight so no defishing needed (defishing uses interpolation which lowers resolution away from the center). (5) Lens comes with a case and has a small built-in hood (serves mainly to protect the front element). (6) 4-year USA warranty if purchased from an authorized dealer like Amazon or B&H. Otherwise you get a 1-year International Warranty.

Cons: (1) Wide sample variation - getting a good copy takes luck or persistence while trying multiple copies. (2) The bulbous front element (this lens is nicknamed "Popeye") is exposed and no standard filter can be used for protection so be very careful. (3) Flares easily. The sun does not need to be in the picture just anywhere not behind you. This is a result of the ultra-wide design and not a fault of Sigma. (4) Photos sometimes come out too bright, giving the appearance of low contrast. Photoshop or other software easily fixes.

Professional 12-24 lens

2006. január 22.

I use this lens primarily for architectural work. It's rugged, fast focusing, and most important, distortion free (i.e., straight lines stay straight). Dramatic design, built for full frame use if (when) you decide it's time to go that way. It's also performed extremely well for landscapes....even some shots at weddings. My most frequently used lens. (Hint: on the APS-C format digital SLRS, you can leave the accessory ring on the lens - it provides additional flare resistance, and there is no vignetting.)

Excellent ultrawide

2007. május 08.

The Sigma 12-24 is an excellent ultrawide. It is very sharp with very little barrel or pincushion distortion. It is a true 12-24 fullframe with a film SLR (love it with my Nikon N80) or full frame digital slr, and effectively an 18-36 with an APS-sized sensor digital SLR. Excelleent ultrawide for architecture, landscapes etc. At 12mm though, it is so wide that you must be careful of distortion introduced by shooting off-level. This is not to say this particular lens is faulty and distorts, but would be true of any ultrawide lens with this wide degree of coverage. While I have heard much talk of supposed poor Sigma quality control, I have no qualms at all about this lens - It is sturdy, tough, smooth and has performed flawlessly for me for years.

Not better than Nikon, but much cheaper.

2007. december 23.

Sigma has been much maligned by the Nikon-brand lens snobs, and not without good reason. The build quality and optical clarity of the average Nikon lens easily trounces the average Sigma.

This particular Sigma lens has been in my bag since 2004 (three years now) and has performed flawlessly in dusty, humid, and rainy conditions. I can't say that about every Nikon lens I have owned.

Don't get me wrong-- this is not a flawless lens. It is weather sealed enough, but I doubt it would survive being dunked in water the way some (but not many) Nikon lenses would. It focuses faster than many Nikon lenses, but slower than competing Silent Wave Motor Nikons. It is quieter than any non-SWM Nikons, and almost as quiet as SWM. It focuses as well as any Nikon f/4.5-5.6 lens in similar lighting conditions.

Now for the flaws. It has more chromatic aberration than Nikon's 12-24mm DX and 14-24mm FX lenses. It isn't as sharp, especially near the edges. But if your maximum print size is 8x10 you'll likely never notice.

UPSIDES: Even though it works at full frame (important for those of us that still shoot film as well as digital) it is much cheaper than Nikons 12-24 f/4.5-5.6 DX lens-- a lens that is only good for DX-sized sensor digital Nikons. It is less than 1/3 the price of the recently released FX (full-frame) 14-24mm f/2.8 Nikon lens.

Granted, the professional Nikon 14-24mm lens is clearly the best of the bunch, but most of us can't afford that extravagance. When I bought this lens it was the only 12-24mm lens available, and given the offerings from Nikon and other third-party lens makers, I can't regret this purchase for one moment.

While I'd like to own the new professional Nikon 14-28mm f/2.8 lens, that won't be in my budget in the foreseeable future. My buying advice: take your camera to a good local camera shop and try this lens (and its competitors) for yourself. I'm confident many of you will agree that the Sigma, while it is not the best lens, is good enough and the best compromise-- given the price.

Cheers.

Impressive performance and value.

2008. július 21.

I bought this lens to service a new client that does virtual tours for hotels and resorts. Their lens requirements are 18mm for full frame digital cameras and 12mm for DX chip cameras, to shoot 360 degree VRs. I didn't want to invest the 1000.00 plus dollars for another Canon lens and Canon or anyone else for that matter doesn't make a lens with this range. The Sigma would allow me to use both my 1Ds Mk II and 20D to service this client and cost me half what anything Canon provides.

Having bought the lens mainly for Internet content, I wasn't going to be too critical about image quality from it, but I've been very surpised and pleased by it's performance. This lens has the least amount of barrel distortion of any wide angle zoom lens I've ever used. Even less than some primary lenses. To the point where it is essentally undetectable to the naked eye. It has less barrel distortion than my 1000.00+ 24-70mm f2.8L Canon lens! Operation is smooth, fast and constructions is first rate. I haven't done any critical sharpness comparisons yet, but I haven't noticed any problems from the images I've taken so far.

The lens has a very bulbous front element, so conventional filters and lens caps won't fit. But Sigma cleverly includes a high quality adapter ring with filter threads in one end that slides over the built in lens shade on the lens. A lens cap is also included that fits on the end of the ring to protect the front element while being stored. The ring vignettes at 12mm on a full frame camera, but does not on DX chip cameras. So on those cameras, conventional thread on filters can be used with by screwing them on to the end of the adapter ring. You could do also this on full frame cameras, at longer focal lengths. A gelatin filter holder is provided on the back of the lens, but I can only imagine this being useful with film cameras.

Overall, I'm very impressed and satisfied with this lens. I highly recommend it.

Unique Ultra-Wide Angle Lens But Poor Sigma Quality Control

2006. július 03.

There's nothing else this wide for use on a full-frame 35mm camera or digital such as the Canon 5D. It's so wide on a full-frame that you can almost see behind you (well not quite, but close to 180 degree field of view). It is not a fisheye, so straight lines stay straight. There is some minor vignetting at 12mm but less than the Canon 17-40 L-lens I had at 17mm. This lens is pushing the limits of physics so it is not as sharp as some lenses but it takes in so much more of the view and provides a crisp image all the way to the corners.

For use on a cropped sensor camera, such as the XT, 20D or 30D a better choice may be the Canon 10-22mm which is uber-sharp in the middle of the frame. The Canon, however, gives fuzzy images on the sides when wide open but sharpens up when stopped down to f8 or more. My third copy of the Sigma lens is less sharp than the Canon in the center of the frame but is sharper starting about halfway to the edge when both lenses are wide open. Near the edges of the frame the Canon gives a dark and mushy image when wide open at 12mm while the Sigma is only slightly less sharp than at the center - truly amazing!

Unfortunately, Sigma lenses are seemingly sold "as-is" with wide sample variations. The autofocus died on my first copy of the lens after less than 30 pictures. The second copy had poor optics with soft and fuzzy pictures even when manually focused. The third copy is sharp at 12mm, even wide open, all the way to the edges, but only if manually focused. At 12mm the lens autofocuses too far away when an object is close and too close for distant objects. At 24mm it autofocuses right on but is softer than at 12mm. I've decided to keep it since it is easy to manually focus. The depth of focus is large at 12mm. For objects further than a few meters away when using 12mm just set the lens to infinity and everything from a few feet to infinity is in focus even at the edges of the frame and in the corners. The lens has a 4-year warranty so I may send it in to Sigma for calibration later.

Pros: (1) Unique ultra-wide angle perspective on a full-frame camera. (2) A good copy will be optically sharp all the way across a full frame, even wide open. Further, there's virtually no purple chromatic aberation near the edges of dark objects with bright backgrounds. (3) Nice build quality with good finish and large smooth focus ring. (4) Straight lines stay straight so no defishing needed (defishing uses interpolation which lowers resolution away from the center). (5) Lens comes with a case and has a small built-in hood (serves mainly to protect the front element). (6) 4-year USA warranty if purchased from an authorized dealer like Amazon or B&H. Otherwise you get a 1-year International Warranty.

Cons: (1) Wide sample variation - getting a good copy takes luck or persistence while trying multiple copies. (2) The bulbous front element (this lens is nicknamed "Popeye") is exposed and no standard filter can be used for protection so be very careful. (3) Flares easily. The sun does not need to be in the picture just anywhere not behind you. This is a result of the ultra-wide design and not a fault of Sigma. (4) Photos sometimes come out too bright, giving the appearance of low contrast. Photoshop or other software easily fixes.

Professional 12-24 lens

2006. január 22.

I use this lens primarily for architectural work. It's rugged, fast focusing, and most important, distortion free (i.e., straight lines stay straight). Dramatic design, built for full frame use if (when) you decide it's time to go that way. It's also performed extremely well for landscapes....even some shots at weddings. My most frequently used lens. (Hint: on the APS-C format digital SLRS, you can leave the accessory ring on the lens - it provides additional flare resistance, and there is no vignetting.)

Excellent ultrawide

2007. május 08.

The Sigma 12-24 is an excellent ultrawide. It is very sharp with very little barrel or pincushion distortion. It is a true 12-24 fullframe with a film SLR (love it with my Nikon N80) or full frame digital slr, and effectively an 18-36 with an APS-sized sensor digital SLR. Excelleent ultrawide for architecture, landscapes etc. At 12mm though, it is so wide that you must be careful of distortion introduced by shooting off-level. This is not to say this particular lens is faulty and distorts, but would be true of any ultrawide lens with this wide degree of coverage. While I have heard much talk of supposed poor Sigma quality control, I have no qualms at all about this lens - It is sturdy, tough, smooth and has performed flawlessly for me for years.

Not better than Nikon, but much cheaper.

2007. december 23.

Sigma has been much maligned by the Nikon-brand lens snobs, and not without good reason. The build quality and optical clarity of the average Nikon lens easily trounces the average Sigma.

This particular Sigma lens has been in my bag since 2004 (three years now) and has performed flawlessly in dusty, humid, and rainy conditions. I can't say that about every Nikon lens I have owned.

Don't get me wrong-- this is not a flawless lens. It is weather sealed enough, but I doubt it would survive being dunked in water the way some (but not many) Nikon lenses would. It focuses faster than many Nikon lenses, but slower than competing Silent Wave Motor Nikons. It is quieter than any non-SWM Nikons, and almost as quiet as SWM. It focuses as well as any Nikon f/4.5-5.6 lens in similar lighting conditions.

Now for the flaws. It has more chromatic aberration than Nikon's 12-24mm DX and 14-24mm FX lenses. It isn't as sharp, especially near the edges. But if your maximum print size is 8x10 you'll likely never notice.

UPSIDES: Even though it works at full frame (important for those of us that still shoot film as well as digital) it is much cheaper than Nikons 12-24 f/4.5-5.6 DX lens-- a lens that is only good for DX-sized sensor digital Nikons. It is less than 1/3 the price of the recently released FX (full-frame) 14-24mm f/2.8 Nikon lens.

Granted, the professional Nikon 14-24mm lens is clearly the best of the bunch, but most of us can't afford that extravagance. When I bought this lens it was the only 12-24mm lens available, and given the offerings from Nikon and other third-party lens makers, I can't regret this purchase for one moment.

While I'd like to own the new professional Nikon 14-28mm f/2.8 lens, that won't be in my budget in the foreseeable future. My buying advice: take your camera to a good local camera shop and try this lens (and its competitors) for yourself. I'm confident many of you will agree that the Sigma, while it is not the best lens, is good enough and the best compromise-- given the price.

Cheers.

Impressive performance and value.

2008. július 21.

I bought this lens to service a new client that does virtual tours for hotels and resorts. Their lens requirements are 18mm for full frame digital cameras and 12mm for DX chip cameras, to shoot 360 degree VRs. I didn't want to invest the 1000.00 plus dollars for another Canon lens and Canon or anyone else for that matter doesn't make a lens with this range. The Sigma would allow me to use both my 1Ds Mk II and 20D to service this client and cost me half what anything Canon provides.

Having bought the lens mainly for Internet content, I wasn't going to be too critical about image quality from it, but I've been very surpised and pleased by it's performance. This lens has the least amount of barrel distortion of any wide angle zoom lens I've ever used. Even less than some primary lenses. To the point where it is essentally undetectable to the naked eye. It has less barrel distortion than my 1000.00+ 24-70mm f2.8L Canon lens! Operation is smooth, fast and constructions is first rate. I haven't done any critical sharpness comparisons yet, but I haven't noticed any problems from the images I've taken so far.

The lens has a very bulbous front element, so conventional filters and lens caps won't fit. But Sigma cleverly includes a high quality adapter ring with filter threads in one end that slides over the built in lens shade on the lens. A lens cap is also included that fits on the end of the ring to protect the front element while being stored. The ring vignettes at 12mm on a full frame camera, but does not on DX chip cameras. So on those cameras, conventional thread on filters can be used with by screwing them on to the end of the adapter ring. You could do also this on full frame cameras, at longer focal lengths. A gelatin filter holder is provided on the back of the lens, but I can only imagine this being useful with film cameras.

Overall, I'm very impressed and satisfied with this lens. I highly recommend it.

Unique Ultra-Wide Angle Lens But Poor Sigma Quality Control

2006. július 03.

There's nothing else this wide for use on a full-frame 35mm camera or digital such as the Canon 5D. It's so wide on a full-frame that you can almost see behind you (well not quite, but close to 180 degree field of view). It is not a fisheye, so straight lines stay straight. There is some minor vignetting at 12mm but less than the Canon 17-40 L-lens I had at 17mm. This lens is pushing the limits of physics so it is not as sharp as some lenses but it takes in so much more of the view and provides a crisp image all the way to the corners.

For use on a cropped sensor camera, such as the XT, 20D or 30D a better choice may be the Canon 10-22mm which is uber-sharp in the middle of the frame. The Canon, however, gives fuzzy images on the sides when wide open but sharpens up when stopped down to f8 or more. My third copy of the Sigma lens is less sharp than the Canon in the center of the frame but is sharper starting about halfway to the edge when both lenses are wide open. Near the edges of the frame the Canon gives a dark and mushy image when wide open at 12mm while the Sigma is only slightly less sharp than at the center - truly amazing!

Unfortunately, Sigma lenses are seemingly sold "as-is" with wide sample variations. The autofocus died on my first copy of the lens after less than 30 pictures. The second copy had poor optics with soft and fuzzy pictures even when manually focused. The third copy is sharp at 12mm, even wide open, all the way to the edges, but only if manually focused. At 12mm the lens autofocuses too far away when an object is close and too close for distant objects. At 24mm it autofocuses right on but is softer than at 12mm. I've decided to keep it since it is easy to manually focus. The depth of focus is large at 12mm. For objects further than a few meters away when using 12mm just set the lens to infinity and everything from a few feet to infinity is in focus even at the edges of the frame and in the corners. The lens has a 4-year warranty so I may send it in to Sigma for calibration later.

Pros: (1) Unique ultra-wide angle perspective on a full-frame camera. (2) A good copy will be optically sharp all the way across a full frame, even wide open. Further, there's virtually no purple chromatic aberation near the edges of dark objects with bright backgrounds. (3) Nice build quality with good finish and large smooth focus ring. (4) Straight lines stay straight so no defishing needed (defishing uses interpolation which lowers resolution away from the center). (5) Lens comes with a case and has a small built-in hood (serves mainly to protect the front element). (6) 4-year USA warranty if purchased from an authorized dealer like Amazon or B&H. Otherwise you get a 1-year International Warranty.

Cons: (1) Wide sample variation - getting a good copy takes luck or persistence while trying multiple copies. (2) The bulbous front element (this lens is nicknamed "Popeye") is exposed and no standard filter can be used for protection so be very careful. (3) Flares easily. The sun does not need to be in the picture just anywhere not behind you. This is a result of the ultra-wide design and not a fault of Sigma. (4) Photos sometimes come out too bright, giving the appearance of low contrast. Photoshop or other software easily fixes.

Professional 12-24 lens

2006. január 22.

I use this lens primarily for architectural work. It's rugged, fast focusing, and most important, distortion free (i.e., straight lines stay straight). Dramatic design, built for full frame use if (when) you decide it's time to go that way. It's also performed extremely well for landscapes....even some shots at weddings. My most frequently used lens. (Hint: on the APS-C format digital SLRS, you can leave the accessory ring on the lens - it provides additional flare resistance, and there is no vignetting.)

Excellent ultrawide

2007. május 08.

The Sigma 12-24 is an excellent ultrawide. It is very sharp with very little barrel or pincushion distortion. It is a true 12-24 fullframe with a film SLR (love it with my Nikon N80) or full frame digital slr, and effectively an 18-36 with an APS-sized sensor digital SLR. Excelleent ultrawide for architecture, landscapes etc. At 12mm though, it is so wide that you must be careful of distortion introduced by shooting off-level. This is not to say this particular lens is faulty and distorts, but would be true of any ultrawide lens with this wide degree of coverage. While I have heard much talk of supposed poor Sigma quality control, I have no qualms at all about this lens - It is sturdy, tough, smooth and has performed flawlessly for me for years.

Not better than Nikon, but much cheaper.

2007. december 23.

Sigma has been much maligned by the Nikon-brand lens snobs, and not without good reason. The build quality and optical clarity of the average Nikon lens easily trounces the average Sigma.

This particular Sigma lens has been in my bag since 2004 (three years now) and has performed flawlessly in dusty, humid, and rainy conditions. I can't say that about every Nikon lens I have owned.

Don't get me wrong-- this is not a flawless lens. It is weather sealed enough, but I doubt it would survive being dunked in water the way some (but not many) Nikon lenses would. It focuses faster than many Nikon lenses, but slower than competing Silent Wave Motor Nikons. It is quieter than any non-SWM Nikons, and almost as quiet as SWM. It focuses as well as any Nikon f/4.5-5.6 lens in similar lighting conditions.

Now for the flaws. It has more chromatic aberration than Nikon's 12-24mm DX and 14-24mm FX lenses. It isn't as sharp, especially near the edges. But if your maximum print size is 8x10 you'll likely never notice.

UPSIDES: Even though it works at full frame (important for those of us that still shoot film as well as digital) it is much cheaper than Nikons 12-24 f/4.5-5.6 DX lens-- a lens that is only good for DX-sized sensor digital Nikons. It is less than 1/3 the price of the recently released FX (full-frame) 14-24mm f/2.8 Nikon lens.

Granted, the professional Nikon 14-24mm lens is clearly the best of the bunch, but most of us can't afford that extravagance. When I bought this lens it was the only 12-24mm lens available, and given the offerings from Nikon and other third-party lens makers, I can't regret this purchase for one moment.

While I'd like to own the new professional Nikon 14-28mm f/2.8 lens, that won't be in my budget in the foreseeable future. My buying advice: take your camera to a good local camera shop and try this lens (and its competitors) for yourself. I'm confident many of you will agree that the Sigma, while it is not the best lens, is good enough and the best compromise-- given the price.

Cheers.

Impressive performance and value.

2008. július 21.

I bought this lens to service a new client that does virtual tours for hotels and resorts. Their lens requirements are 18mm for full frame digital cameras and 12mm for DX chip cameras, to shoot 360 degree VRs. I didn't want to invest the 1000.00 plus dollars for another Canon lens and Canon or anyone else for that matter doesn't make a lens with this range. The Sigma would allow me to use both my 1Ds Mk II and 20D to service this client and cost me half what anything Canon provides.

Having bought the lens mainly for Internet content, I wasn't going to be too critical about image quality from it, but I've been very surpised and pleased by it's performance. This lens has the least amount of barrel distortion of any wide angle zoom lens I've ever used. Even less than some primary lenses. To the point where it is essentally undetectable to the naked eye. It has less barrel distortion than my 1000.00+ 24-70mm f2.8L Canon lens! Operation is smooth, fast and constructions is first rate. I haven't done any critical sharpness comparisons yet, but I haven't noticed any problems from the images I've taken so far.

The lens has a very bulbous front element, so conventional filters and lens caps won't fit. But Sigma cleverly includes a high quality adapter ring with filter threads in one end that slides over the built in lens shade on the lens. A lens cap is also included that fits on the end of the ring to protect the front element while being stored. The ring vignettes at 12mm on a full frame camera, but does not on DX chip cameras. So on those cameras, conventional thread on filters can be used with by screwing them on to the end of the adapter ring. You could do also this on full frame cameras, at longer focal lengths. A gelatin filter holder is provided on the back of the lens, but I can only imagine this being useful with film cameras.

Overall, I'm very impressed and satisfied with this lens. I highly recommend it.

Unique Ultra-Wide Angle Lens But Poor Sigma Quality Control

2006. július 03.

There's nothing else this wide for use on a full-frame 35mm camera or digital such as the Canon 5D. It's so wide on a full-frame that you can almost see behind you (well not quite, but close to 180 degree field of view). It is not a fisheye, so straight lines stay straight. There is some minor vignetting at 12mm but less than the Canon 17-40 L-lens I had at 17mm. This lens is pushing the limits of physics so it is not as sharp as some lenses but it takes in so much more of the view and provides a crisp image all the way to the corners.

For use on a cropped sensor camera, such as the XT, 20D or 30D a better choice may be the Canon 10-22mm which is uber-sharp in the middle of the frame. The Canon, however, gives fuzzy images on the sides when wide open but sharpens up when stopped down to f8 or more. My third copy of the Sigma lens is less sharp than the Canon in the center of the frame but is sharper starting about halfway to the edge when both lenses are wide open. Near the edges of the frame the Canon gives a dark and mushy image when wide open at 12mm while the Sigma is only slightly less sharp than at the center - truly amazing!

Unfortunately, Sigma lenses are seemingly sold "as-is" with wide sample variations. The autofocus died on my first copy of the lens after less than 30 pictures. The second copy had poor optics with soft and fuzzy pictures even when manually focused. The third copy is sharp at 12mm, even wide open, all the way to the edges, but only if manually focused. At 12mm the lens autofocuses too far away when an object is close and too close for distant objects. At 24mm it autofocuses right on but is softer than at 12mm. I've decided to keep it since it is easy to manually focus. The depth of focus is large at 12mm. For objects further than a few meters away when using 12mm just set the lens to infinity and everything from a few feet to infinity is in focus even at the edges of the frame and in the corners. The lens has a 4-year warranty so I may send it in to Sigma for calibration later.

Pros: (1) Unique ultra-wide angle perspective on a full-frame camera. (2) A good copy will be optically sharp all the way across a full frame, even wide open. Further, there's virtually no purple chromatic aberation near the edges of dark objects with bright backgrounds. (3) Nice build quality with good finish and large smooth focus ring. (4) Straight lines stay straight so no defishing needed (defishing uses interpolation which lowers resolution away from the center). (5) Lens comes with a case and has a small built-in hood (serves mainly to protect the front element). (6) 4-year USA warranty if purchased from an authorized dealer like Amazon or B&H. Otherwise you get a 1-year International Warranty.

Cons: (1) Wide sample variation - getting a good copy takes luck or persistence while trying multiple copies. (2) The bulbous front element (this lens is nicknamed "Popeye") is exposed and no standard filter can be used for protection so be very careful. (3) Flares easily. The sun does not need to be in the picture just anywhere not behind you. This is a result of the ultra-wide design and not a fault of Sigma. (4) Photos sometimes come out too bright, giving the appearance of low contrast. Photoshop or other software easily fixes.

Professional 12-24 lens

2006. január 22.

I use this lens primarily for architectural work. It's rugged, fast focusing, and most important, distortion free (i.e., straight lines stay straight). Dramatic design, built for full frame use if (when) you decide it's time to go that way. It's also performed extremely well for landscapes....even some shots at weddings. My most frequently used lens. (Hint: on the APS-C format digital SLRS, you can leave the accessory ring on the lens - it provides additional flare resistance, and there is no vignetting.)

Excellent ultrawide

2007. május 08.

The Sigma 12-24 is an excellent ultrawide. It is very sharp with very little barrel or pincushion distortion. It is a true 12-24 fullframe with a film SLR (love it with my Nikon N80) or full frame digital slr, and effectively an 18-36 with an APS-sized sensor digital SLR. Excelleent ultrawide for architecture, landscapes etc. At 12mm though, it is so wide that you must be careful of distortion introduced by shooting off-level. This is not to say this particular lens is faulty and distorts, but would be true of any ultrawide lens with this wide degree of coverage. While I have heard much talk of supposed poor Sigma quality control, I have no qualms at all about this lens - It is sturdy, tough, smooth and has performed flawlessly for me for years.

Not better than Nikon, but much cheaper.

2007. december 23.

Sigma has been much maligned by the Nikon-brand lens snobs, and not without good reason. The build quality and optical clarity of the average Nikon lens easily trounces the average Sigma.

This particular Sigma lens has been in my bag since 2004 (three years now) and has performed flawlessly in dusty, humid, and rainy conditions. I can't say that about every Nikon lens I have owned.

Don't get me wrong-- this is not a flawless lens. It is weather sealed enough, but I doubt it would survive being dunked in water the way some (but not many) Nikon lenses would. It focuses faster than many Nikon lenses, but slower than competing Silent Wave Motor Nikons. It is quieter than any non-SWM Nikons, and almost as quiet as SWM. It focuses as well as any Nikon f/4.5-5.6 lens in similar lighting conditions.

Now for the flaws. It has more chromatic aberration than Nikon's 12-24mm DX and 14-24mm FX lenses. It isn't as sharp, especially near the edges. But if your maximum print size is 8x10 you'll likely never notice.

UPSIDES: Even though it works at full frame (important for those of us that still shoot film as well as digital) it is much cheaper than Nikons 12-24 f/4.5-5.6 DX lens-- a lens that is only good for DX-sized sensor digital Nikons. It is less than 1/3 the price of the recently released FX (full-frame) 14-24mm f/2.8 Nikon lens.

Granted, the professional Nikon 14-24mm lens is clearly the best of the bunch, but most of us can't afford that extravagance. When I bought this lens it was the only 12-24mm lens available, and given the offerings from Nikon and other third-party lens makers, I can't regret this purchase for one moment.

While I'd like to own the new professional Nikon 14-28mm f/2.8 lens, that won't be in my budget in the foreseeable future. My buying advice: take your camera to a good local camera shop and try this lens (and its competitors) for yourself. I'm confident many of you will agree that the Sigma, while it is not the best lens, is good enough and the best compromise-- given the price.

Cheers.

Impressive performance and value.

2008. július 21.

I bought this lens to service a new client that does virtual tours for hotels and resorts. Their lens requirements are 18mm for full frame digital cameras and 12mm for DX chip cameras, to shoot 360 degree VRs. I didn't want to invest the 1000.00 plus dollars for another Canon lens and Canon or anyone else for that matter doesn't make a lens with this range. The Sigma would allow me to use both my 1Ds Mk II and 20D to service this client and cost me half what anything Canon provides.

Having bought the lens mainly for Internet content, I wasn't going to be too critical about image quality from it, but I've been very surpised and pleased by it's performance. This lens has the least amount of barrel distortion of any wide angle zoom lens I've ever used. Even less than some primary lenses. To the point where it is essentally undetectable to the naked eye. It has less barrel distortion than my 1000.00+ 24-70mm f2.8L Canon lens! Operation is smooth, fast and constructions is first rate. I haven't done any critical sharpness comparisons yet, but I haven't noticed any problems from the images I've taken so far.

The lens has a very bulbous front element, so conventional filters and lens caps won't fit. But Sigma cleverly includes a high quality adapter ring with filter threads in one end that slides over the built in lens shade on the lens. A lens cap is also included that fits on the end of the ring to protect the front element while being stored. The ring vignettes at 12mm on a full frame camera, but does not on DX chip cameras. So on those cameras, conventional thread on filters can be used with by screwing them on to the end of the adapter ring. You could do also this on full frame cameras, at longer focal lengths. A gelatin filter holder is provided on the back of the lens, but I can only imagine this being useful with film cameras.

Overall, I'm very impressed and satisfied with this lens. I highly recommend it.

Unique Ultra-Wide Angle Lens But Poor Sigma Quality Control

2006. július 03.

There's nothing else this wide for use on a full-frame 35mm camera or digital such as the Canon 5D. It's so wide on a full-frame that you can almost see behind you (well not quite, but close to 180 degree field of view). It is not a fisheye, so straight lines stay straight. There is some minor vignetting at 12mm but less than the Canon 17-40 L-lens I had at 17mm. This lens is pushing the limits of physics so it is not as sharp as some lenses but it takes in so much more of the view and provides a crisp image all the way to the corners.

For use on a cropped sensor camera, such as the XT, 20D or 30D a better choice may be the Canon 10-22mm which is uber-sharp in the middle of the frame. The Canon, however, gives fuzzy images on the sides when wide open but sharpens up when stopped down to f8 or more. My third copy of the Sigma lens is less sharp than the Canon in the center of the frame but is sharper starting about halfway to the edge when both lenses are wide open. Near the edges of the frame the Canon gives a dark and mushy image when wide open at 12mm while the Sigma is only slightly less sharp than at the center - truly amazing!

Unfortunately, Sigma lenses are seemingly sold "as-is" with wide sample variations. The autofocus died on my first copy of the lens after less than 30 pictures. The second copy had poor optics with soft and fuzzy pictures even when manually focused. The third copy is sharp at 12mm, even wide open, all the way to the edges, but only if manually focused. At 12mm the lens autofocuses too far away when an object is close and too close for distant objects. At 24mm it autofocuses right on but is softer than at 12mm. I've decided to keep it since it is easy to manually focus. The depth of focus is large at 12mm. For objects further than a few meters away when using 12mm just set the lens to infinity and everything from a few feet to infinity is in focus even at the edges of the frame and in the corners. The lens has a 4-year warranty so I may send it in to Sigma for calibration later.

Pros: (1) Unique ultra-wide angle perspective on a full-frame camera. (2) A good copy will be optically sharp all the way across a full frame, even wide open. Further, there's virtually no purple chromatic aberation near the edges of dark objects with bright backgrounds. (3) Nice build quality with good finish and large smooth focus ring. (4) Straight lines stay straight so no defishing needed (defishing uses interpolation which lowers resolution away from the center). (5) Lens comes with a case and has a small built-in hood (serves mainly to protect the front element). (6) 4-year USA warranty if purchased from an authorized dealer like Amazon or B&H. Otherwise you get a 1-year International Warranty.

Cons: (1) Wide sample variation - getting a good copy takes luck or persistence while trying multiple copies. (2) The bulbous front element (this lens is nicknamed "Popeye") is exposed and no standard filter can be used for protection so be very careful. (3) Flares easily. The sun does not need to be in the picture just anywhere not behind you. This is a result of the ultra-wide design and not a fault of Sigma. (4) Photos sometimes come out too bright, giving the appearance of low contrast. Photoshop or other software easily fixes.

Professional 12-24 lens

2006. január 22.

I use this lens primarily for architectural work. It's rugged, fast focusing, and most important, distortion free (i.e., straight lines stay straight). Dramatic design, built for full frame use if (when) you decide it's time to go that way. It's also performed extremely well for landscapes....even some shots at weddings. My most frequently used lens. (Hint: on the APS-C format digital SLRS, you can leave the accessory ring on the lens - it provides additional flare resistance, and there is no vignetting.)

Excellent ultrawide

2007. május 08.

The Sigma 12-24 is an excellent ultrawide. It is very sharp with very little barrel or pincushion distortion. It is a true 12-24 fullframe with a film SLR (love it with my Nikon N80) or full frame digital slr, and effectively an 18-36 with an APS-sized sensor digital SLR. Excelleent ultrawide for architecture, landscapes etc. At 12mm though, it is so wide that you must be careful of distortion introduced by shooting off-level. This is not to say this particular lens is faulty and distorts, but would be true of any ultrawide lens with this wide degree of coverage. While I have heard much talk of supposed poor Sigma quality control, I have no qualms at all about this lens - It is sturdy, tough, smooth and has performed flawlessly for me for years.

Not better than Nikon, but much cheaper.

2007. december 23.

Sigma has been much maligned by the Nikon-brand lens snobs, and not without good reason. The build quality and optical clarity of the average Nikon lens easily trounces the average Sigma.

This particular Sigma lens has been in my bag since 2004 (three years now) and has performed flawlessly in dusty, humid, and rainy conditions. I can't say that about every Nikon lens I have owned.

Don't get me wrong-- this is not a flawless lens. It is weather sealed enough, but I doubt it would survive being dunked in water the way some (but not many) Nikon lenses would. It focuses faster than many Nikon lenses, but slower than competing Silent Wave Motor Nikons. It is quieter than any non-SWM Nikons, and almost as quiet as SWM. It focuses as well as any Nikon f/4.5-5.6 lens in similar lighting conditions.

Now for the flaws. It has more chromatic aberration than Nikon's 12-24mm DX and 14-24mm FX lenses. It isn't as sharp, especially near the edges. But if your maximum print size is 8x10 you'll likely never notice.

UPSIDES: Even though it works at full frame (important for those of us that still shoot film as well as digital) it is much cheaper than Nikons 12-24 f/4.5-5.6 DX lens-- a lens that is only good for DX-sized sensor digital Nikons. It is less than 1/3 the price of the recently released FX (full-frame) 14-24mm f/2.8 Nikon lens.

Granted, the professional Nikon 14-24mm lens is clearly the best of the bunch, but most of us can't afford that extravagance. When I bought this lens it was the only 12-24mm lens available, and given the offerings from Nikon and other third-party lens makers, I can't regret this purchase for one moment.

While I'd like to own the new professional Nikon 14-28mm f/2.8 lens, that won't be in my budget in the foreseeable future. My buying advice: take your camera to a good local camera shop and try this lens (and its competitors) for yourself. I'm confident many of you will agree that the Sigma, while it is not the best lens, is good enough and the best compromise-- given the price.

Cheers.

Impressive performance and value.

2008. július 21.

I bought this lens to service a new client that does virtual tours for hotels and resorts. Their lens requirements are 18mm for full frame digital cameras and 12mm for DX chip cameras, to shoot 360 degree VRs. I didn't want to invest the 1000.00 plus dollars for another Canon lens and Canon or anyone else for that matter doesn't make a lens with this range. The Sigma would allow me to use both my 1Ds Mk II and 20D to service this client and cost me half what anything Canon provides.

Having bought the lens mainly for Internet content, I wasn't going to be too critical about image quality from it, but I've been very surpised and pleased by it's performance. This lens has the least amount of barrel distortion of any wide angle zoom lens I've ever used. Even less than some primary lenses. To the point where it is essentally undetectable to the naked eye. It has less barrel distortion than my 1000.00+ 24-70mm f2.8L Canon lens! Operation is smooth, fast and constructions is first rate. I haven't done any critical sharpness comparisons yet, but I haven't noticed any problems from the images I've taken so far.

The lens has a very bulbous front element, so conventional filters and lens caps won't fit. But Sigma cleverly includes a high quality adapter ring with filter threads in one end that slides over the built in lens shade on the lens. A lens cap is also included that fits on the end of the ring to protect the front element while being stored. The ring vignettes at 12mm on a full frame camera, but does not on DX chip cameras. So on those cameras, conventional thread on filters can be used with by screwing them on to the end of the adapter ring. You could do also this on full frame cameras, at longer focal lengths. A gelatin filter holder is provided on the back of the lens, but I can only imagine this being useful with film cameras.

Overall, I'm very impressed and satisfied with this lens. I highly recommend it.

Sigma 12-24mm f/4.5-5.6 EX DG ASP HSM Minta fotók

Canon EOS 300D + Sigma 12-24mm f/4.5-5.6 EX DG ASP HSM

• Canon EOS 300D
• Fájlméret: 2,1 MB
• Felbontás: 6,3 megapixel
• Blende: f/9.0
• Gyújtótávolság: 19/1

• Canon EOS 300D
• Fájlméret: 3,5 MB
• Felbontás: 6,3 megapixel
• Blende: f/9.0
• Gyújtótávolság: 12/1

• Canon EOS 300D
• Fájlméret: 2,6 MB
• Felbontás: 6,3 megapixel
• Blende: f/9.0
• Gyújtótávolság: 15/1

• Canon EOS 300D
• Fájlméret: 3,1 MB
• Felbontás: 6,3 megapixel
• Blende: f/10.0
• Gyújtótávolság: 12/1

• Canon EOS 300D
• Fájlméret: 2,4 MB
• Felbontás: 6,3 megapixel
• Blende: f/10.0
• Gyújtótávolság: 17/1

• Canon EOS 300D
• Fájlméret: 2,8 MB
• Felbontás: 6,3 megapixel
• Blende: f/8.0
• Gyújtótávolság: 16/1

• Canon EOS 300D
• Fájlméret: 1,6 MB
• Felbontás: 6,3 megapixel
• Blende: f/16.0
• Gyújtótávolság: 14/1

Sigma 12-24mm f/4.5-5.6 EX DG ASP HSM Kiegészítők

Napellenzők a Sigma 12-24mm f/4.5-5.6 EX DG ASP HSM objektívre

• JJC Pro Center Pinch 62mm Snap-on Lens Cap with Leash fits universal lens (Canon, Nikon, Olympus, Sigma and etc.) 2,89 USD
• JJC Pro Center Pinch 67mm Snap-on Lens Cap with Leash fits universal lens (Canon, Nikon, Olympus, Sigma and etc.) 2,89 USD
• Inflatable Universal Studio Soft Box Flash Diffuser for Canon EOS, Nikon, Olympus, Pentax, Sony, Sigma, & Other External Flash Units 2,99 USD
• JJC Pro Center Pinch 52mm Snap-on Lens Cap with Leash fits universal lens (Canon, Nikon, Olympus, Sigma and etc.) 2,99 USD
• JJC Pro Center Pinch 72mm Snap-on Lens Cap with Leash fits universal lens (Canon, Nikon, Olympus, Sigma and etc.) 2,99 USD
• Digital Camera Camcorder Lens Cleaning Pen for Canon Nikon Sony Pentax OM Fuji Sigma Digital Cameras and lens 2,99 USD
• JJC Pro Center Pinch 77mm Snap-on Lens Cap with Leash fits universal lens (Canon, Nikon, Olympus, Sigma and etc.) 2,99 USD
• Sigma 70-200mm f/2.8 DG HSM II Macro Zoom Lens for Canon Digital SLR Cameras 779,99 USD
• Sigma 18-200mm f/3.5-6.3 DC Lens for Canon Digital SLR Cameras 0,00
• Sigma 70-300mm f/4-5.6 DG APO Macro Telephoto Zoom Lens for Canon SLR Cameras 0,00