Tamron SP AF17-50mm f/2.8 XR Di II LD Aspherical 技術規格

Tamron SP AF17-50mm f/2.8 XR Di II LD Aspherical 技術規格

可用的接環	Canon EF, Nikon F, Pentax K, Sony / Minolta A
應用	人像, 風景, 建築物
類目	標準變焦
倍增器	1.5×
穩定器	否
焦距	17 - 50 mm (2.9× 變焦)
鏡片組	13 群組含有16 元素
視角	35毫米: 不適用 數碼: 78.75-31.18°
葉片數目	7
最大光圈	廣角: f/2.8 遠攝: f/2.8
最小光圈	廣角: f/32 遠攝: 不適用
最短焦距	27 cm
放大	0.22×
濾鏡大小	67 mm
大小	∅ 74 × 81.7 mm
重量	430 g
記錄
自動對焦速度	不適用
自動對焦聲音
內置對焦	是
內置變焦	不適用
固定前鏡頭	是
接駁類型	鐵
天氣密封	不適用
插入濾鏡	否
超聲波自動對焦	否
APS-C大小的圈	是
低散光度鏡頭元素	是
硬機殼	不適用
軟機殼	不適用
遮光罩	DA09 (包含) 可印刷的遮光罩
三腳架接合器	不適用

Tamron SP AF17-50mm f/2.8 XR Di II LD Aspherical 評語

Other reviews

• Tamron SP AF17-50mm f/2.8 XR Di II LD Aspherical 評語 在www.the-digital-picture.com (英文)
• Tamron SP AF17-50mm f/2.8 XR Di II LD Aspherical 評語 在www.the-digital-picture.com (英文)
• Tamron SP AF17-50mm f/2.8 XR Di II LD Aspherical 評語 在www.ephotozine.com (英文)
• Tamron SP AF17-50mm f/2.8 XR Di II LD Aspherical 評語 在www.bobatkins.com (英文)
• Tamron SP AF17-50mm f/2.8 XR Di II LD Aspherical 評語 在pixinfo.com (匈牙利文)
• Tamron SP AF17-50mm f/2.8 XR Di II LD Aspherical 評語 在dc.watch.impress.co.jp (日文)
• Tamron SP AF17-50mm f/2.8 XR Di II LD Aspherical 評語 在www.digineff.cz (捷克文)
• Tamron SP AF17-50mm f/2.8 XR Di II LD Aspherical 評語 在www.photozone.de (英文)

Tamron SP AF17-50mm f/2.8 XR Di II LD Aspherical 用者評語

亞瑪遜內最有用的用家評語

Best wide angle zoom lens.

20 July 2006

I tested canon 28-105 3.5-4.5, sigma 24-70 2.8, canon 50mm 1.8, canon 18-55 3.5-5.6. I would say this Tamron 17-50 2.8 is my dream lens. I bought canon 28-105 3.5-4.5 for the focal range but was very sad about its softness and returned it. Then I went to sigma. That's a huge, heavy lens and very solid. Based on reviews, it should be very sharp. however, it was not true in my case. No matter how hard I tried, I never got sharp image. I guess I was not lucky enough to have a good copy and returned it in one week. Finally I bought Tamron 17-50mm 2.8. It surprised me from the very first picture. The sharpness is as good as canon 50mm 1.8 prime, the benchmark. Contrast is very good and color too. 7 blade aperture makes very nice blur background. I care so much about sharpness so the lens is my taste. The focusing is very accurate and fast enough, even though not as fast as sigma. Now I never touch canon 18-55 kit lens, the difference is huge. It's true this lens has no IS. But for 17-50mm range, IS is not as useful as for tele lens. The price is excellent considering the top optical quanlity. Now I am feeling I am a pro. :)))

The reasons I choose this lens are:

1. widest angle in the class(most important thing for 1.6X cropping factor sensor camera
2. Very sharp and top quanlity glass
3. light weighted and small and easy to carry
4. 7-blade aperture makes nice background(if you own canon 50mm 1.8 II, you will see its 5-blade aperture makes harsh background)
5. big constant 2.8 aperture through the whole range
6. excellent price

How does it rate? More importantly how does it rank?

9 July 2006

This lens is probably the most interesting among all the wide angel lenses available to Canon crop DSLR users. It offers the best of everything except for a couple of things here and there. Best of all it's price beats all other lenses in that range. But before I start comparing it to other options here is a basic rating of this lens.


RATING: The lens is well built and surprisingly light and compact. It doesn't have the solid L feel but still has a firm feeling that inspires confidence while shooting. Sharpness is at par with other top quality zooms, so much so that at F8.0 and above it matches many primes. Distortion like chromatic aberration and vignetting are about average. Meaning you would probably have to stop the lens down to 5.6-8.0 to eliminate distortions. Focus is quick and right on though a little noisy. Overall, a very good lens.


RANKING: With all of the above in perspective how does it rank? Compared to Canon's 17-40L 4.0 I think the Tamron come on top. Here is a breakdown of the Tamron strenghts and weaknesses compared to the Canon 17-40L.

Strengths
1. Faster lens (2.8 vs 4.0). That can make the difference between taking the shot or missing in a low light situation.
2. It has a wider zoom range (10mm at the telephoto end).

Weaknesses
1. Flare and chromatic aberration control lags behind the 17-40L.
2. solid build but not as solid as the tank-like 17-40L. Some may find that slightly objectionable after using any L lens for many years.

Great lens for available light and wedding photography.

25 June 2006

This lens features a good zoom range, that gives us nice wide-angle scenics and groups, mid-range couple shoots, and acceptable head-and-shoulder shots. The lens is of middle weight, but feels solid, and has a smooth zoom control.

The internal focusing is quick, but a bit noisier than Canon USM designs, and does not allow for "focus on demand" (while still set to autofocus). When switched to manual, the focusing is easy to use.

The lens comes standard with the petal type lens hood, and has a warranty considerably longer than Canon's.

The real charm of this lens is the fast F2.8 throughout the zoom range. It's great for general available light photography, but at it's best as a wedding lens. The range will do the groups and couples, the larger aperture will increase our flash range, increase our ability to get the background to come out in flash shots, and increase the ability of the camera to focus accurately in low light.

I really wanted to like this lens...

16 November 2006

I was looking forward to getting this lens to replace the kit lens for my Rebel XTi. The reviews I read suggested this was a very sharp lens-- as an extra benefit it also has F2.8 throughout.

First, I want to say there was nothing I disliked about the lens. It was comfortable, appeared well made, and the extra weight as compared with the kit lens did not bother me at all. On the other hand, the pictures overall were essentially identical to the kit lens.

At 18mm, the sharpness of the two lens was identical at f5.6 and f9 at the center and slightly better at the edges with the Tanmron lens. At 50mm though, sharpness was slightly better with the kit lens both in the center and at the edges at all appertures where the two lens could be compared. I was surprised and repeated the tests with a tripod and center focusing mode with the same results. Color rendition was equal with both lens. When I switched to manual focus the Tamron lens sharpness did improve. Presumably, the problem therefore lies with the lens "front-focusing" rather than a problem with the optics themselves. If I just wanted to always manually focus, the lens would be fine.

I have now spoken with a number of people who have or have had this lens, and about 60% of people love this lens but almost 40% tell me of very similar problems. Some tell me they have returned the lens and gotten a new lens which was fantastically better while others tell me the second lens had the same problem. This lens has become very popular-- I wonder whether with this popularity and pressure to keep up with demand Tamron's quality control has declined.

In summary, this lens probably has the potential to be a great lens, but you have to get lucky or be persistant in returning the lens until you get a good one which properly focuses. I didn't have the patience and just returned mine and put the kit lens back on. I will say that Amazon accepted the return without any problem.

Talk about bang for your buck!

9 October 2006

This is the kind of lens that makes me wish Canon would understand their market better. Instead of putting out a 17-55mm zoom that everyone can afford, they put out a EF-S non pro lens at a pro price, which has serious quality control issues. Tamron, however, responded.

This lens is quite sharp. It could definately be used for professional purposes. Sharp at 2.8 and much sharper above. After using this lens, the 17-40mm L, as well as the new EF-S 17-55mm, I can honestly say that Tamron beat out Canon in their own game in terms of quality for the money. Great optics, great range, affordable, and a FIVE YEAR warranty, as opposed to Canon's weak 1 year warranty. Buy me.

This len has lots of potential, but quality control is questionable

3 January 2007

I felt like I was taking a gamble when I bought this lens, because I was not able to find many reviews of it. Given that the equivalent Nikon was almost 3x the price, I decided to take a chance. At this point I still can't give a solid thumbs up or down, so I opted to give it a 3. Here is a short history of my experience:

1) Bought lens from Amazon to use on my D50. It was a joy to have an f/2.8 zoom lens, but I was not totally convinced about the sharpness (which the few reviews I could find said was supposed to be really good). After comparing it to my other lenses and a rented Nikon 17-55 f/2.8 (great lens, but much bulkier and heavier), I determined that it front-focused so much that the subject would always be very slightly out of focus. It wasn't obvious right away, because the front-focusing meant that the background went out of focus really quickly, making for a great depth-of-field effect. The heavily out of focus background essentially made the subject look more focused, even though it really wasn't all that sharp. After much deliberation, I sent it back to Amazon to try another copy.

2) 2nd copy. This one was much sharper but back-focused, which I found to be even more annoying. This would manifest itself by someone's eyes and nose being out of focus and their ears and hairline being razor sharp. After trying to force myself to live with it, I decided I couldn't and sent it off to Tamron for calibration. Several people in lens forums mentioned that this did the trick, so I decided to give that a shot rather than send it back to Amazon (they were out of stock at the time anyway, so it made the decision easier).

3) Tamron told me that they were running slow, so it would take 5 weeks to calibrate it. Again weighing the extra $800 I'd have to pay to buy the Nikon, I decided to send it in. It actually took 8 weeks! And when I wrote them to inquire at the 7 week mark, they said they had no record of it. I think that was just because they had already shipped it, but it did scare me at first.

4) Calibrated lens. My first impression was wow, this thing really is sharp, and I was really glad that I has sent it back in. And that's when I started noticing something strange... many of my shots were looking massively overexposed. I was out on a nice, evenly-lit overcast day, so I wasn't able to figure out why the camera was having such a difficult time metering. After a few more shots, I realized that anything taken at an aperture smaller than f/2.8 would be overexposed, which led me to suspect a problem with the aperture blades. Sure enough, they were stuck wide open, so every picture was at f/2.8, regardless of the actual setting. At this point in the story, I was very unhappy.

5) Tamron customer service. I expressed my frustrations to them in an email over Christmas weekend, and I am happy to say that they responded positively the next business day. They gave me their Fedex #, so that I didn't have to pay return shipping. They also promised that they would keep it for only 2 or 3 days and ship it back right away. That made me feel a little better.

6) ???? I have not received it back yet (should be soon), so I don't have a final recommendation on this lens. My sense is that it will follow the "worth what you pay for it" adage. It will have taken a large investment of time (actually, waiting), but in the end I hope to have a pretty good lens at a relatively bargain price. There have been several times that I wanted to give up and just go buy the Nikon, but not being a professional, it's really hard to justify paying $1200-1300 for a single lens.

Otherwise, the lens is really nice. It's nice and compact for what it does, and what several have complained about as a "really loud focus noise" doesn't seem bad to me at all. It does have some pretty serious distortion, especially at wide angle. It's a complex moustache distortion which isn't correctable with Photoshop's built in correction. I did send in photos to the creator of PTLens, and he calibrated the lens and integrated it into the PTLens plugin (and standalone version). With that, your photos can be essentially distortion-free. It's really impressive how well it works. Of course, I used the lens for weeks before I really noticed the distortion. I took a picture of brick wall and couldn't believe how bad it was. Unless your photo has a continuous horizontal element, you're unlikely to even notice this.

I wish my review could be more conclusive, but I'm feeling ambiguous at this point. Hope that this helps someone trying to decide on this lens.

A close match for the $$$ Nikon lens

2 May 2007

I have had this lens for a month now and have shot a few thousand photos with it in different lighting situations. I own a few other fast lenses and use them all in my work as a wedding photographer. This was the first purchase I have made outside of the Nikon brand name. I am always a big review reader, before I buy kinda guy. Not just with Photography.

First off, let me say this. The lens is very good. I would go so far as to say it is excellent, with all things considered about this lens.

Now I will tell you how to buy it. Go to the shop you favor and use it. I did this and did not buy it on Amazon. I brought one of my cameras (D200) and I used the lens inside and outside of the shop. Then for comparison, I used the Genuine Nikon lens to A-B them together. Tamron has been rumored to have some QC issues, so using the lens copy you are going to actually buy is the best bet, I think. Note: I made samples from each lens at 2.8, f4, f8 and f11. I did them at full wide and full zoom and about the middle range of both lenses I think it was 35mm. I used no flash for these tests.

Here is what I determined from the above exercise. The Nikon lens is definitely much better built. It is much larger and has significantly more weight. It reminds me of a Jr version of my Nikon 80-200mm 2.8D AF lens. A lens I love btw. However, that is not to say that the Tamron was in any way built cheap. In fact it is well built. I use my lenses a lot, but I am very careful with them too. Tamron offers a 6 year warranty VS Nikon's 5 year. The build of the Tamron lens was better than the kit lens sold with most Nikon models, but no where near that of the Nikon lens I am comparing it to. With proper care, the Tamron lens will hold up, no doubt.

Focus was also, noticibly faster on the Nikon lens. However, not dramaticly so. It is more quiet, again, not dramaticly so. Some people have complained about the Tamron being noisy. All I can say is the one I tested was not. It was About as noisy or a little less than my Nikon 18-55 Kit lens was, before I sold it.

Image quality: Honestly, I could not tell the difference here and this is what really sold me on the Tamron lens. The folks at my camera store took the A-B images I took and uploaded them to one of their in store computers for me to really compare them on the spot. Now that is customer service!! I was really hard pressed to see any difference at all in the images and I knew which lens they came from. Both lenses produced images which were very sharp and contrasty in all areas at all focal lengths and stops. I would bet if I mixed them up and said..OK, Pick the Nikon and the Tamron's out of the pile, I do not think anyone would get them right. The only noticible difference was an image taken outdoors at f/11. The Nikon one did seem to be just a tad sharper in the background. I should have taken more images at that range, but on the LCD they both looked good at the time and I was starting to run late, so I didn't. My point was, I do not know if it was lens error or my error on these two particular shots. But like I said, it was minimal differences anyway.

Conclusion: Ok, so the Nikon is a better lens on a number of points. This of course given my highly un-scientific testing results. However, when you consider the cost, it better be superior at something. I opted to buy the Tamron 17-50 because, I could not tell the difference enough to make me justify the cost of the Nikon lens.

I am very happy with this lens and I have no doubts it will last many years. So, do yourself a favor if you are in the market for this lens, use the one you intend to buy first. Make sure you did not get one of the bad copies and I am confident you too will love this lens.

Great lens for available light and wedding photography.

12 July 2006

This lens features a good zoom range, that gives us nice wide-angle scenics and groups, mid-range couple shoots, and acceptable head-and-shoulder shots. The lens is of middle weight, but feels solid, and has a smooth zoom control.

The internal focusing is quick, but a bit noisier than Nikon's Silent Wave designs, and does not allow for "focus on demand" (while still set to autofocus). When switched to manual, the focusing is easy to use.

The lens comes standard with the petal type lens hood, and has a warranty a year longer than Nikon's.

The real charm of this lens is the fast F2.8 throughout the zoom range. It's great for general available light photography, but at it's best as a wedding lens. The range will do the groups and couples, the larger aperture will increase our flash range, increase our ability to get the background to come out in flash shots, and increase the ability of the camera to focus accurately in low light.

Rivals Nikon 17-55

7 November 2006

This is a great lens -- it rivals the Nikon 17-55 at less than 1/3 the price. It is also lightweight and easy to carry around as a day to day lens. THe image quality is supurb. Compare this to the Sigma 18-50, they are virtually identical. This lens produces a better right-out-of-the-camera image, especially useful if you are a jpg enthusiast. While a bit more pricy than the standard "kit lens" it would replace in your lens collection, the fast 2.8 speed and image quality can not be bettered at this price with these features.

All around great lens for the money

2 May 2008

I spent a great deal of time researching a DX equivalent pro normal zoom lens, I've read many reviews and it came down to the nikkor 17-55mm f/2.8, the sigma 18-50mm f/2.8, and this little gem of a lens. After owning this lens for a month, I can attest to it's value and performance as similar to other's experience. It's fast, the newer built-in-motor version is much quieter and finds it's focus lock much faster than the previous version, which I did not care for having tried it out on my D80 the better part of a year ago. I have also found it acquires focus lock in lower light better than my AF-S kit lens, with little hunt, but there is some. I would have liked to see a focus limiter for those situations.

My nikkor 18-135mm performed horribly in low light, and realizing it is not as fast in terms of maximum aperture, I did expect much more from an AF-S DX lens costing $300.

Now, back to the Tamron...

Pros:

At a third the price of the nikkor version, this lens is the best value, even at MSRP full price. I did not purchase through amazon, but I realize that many have and will so I want people to know what they are getting. I paid the full $500 for mine and still feel I made the best investment. This lens excels at sharpness and has some of the creamiest bokeh I have produced on my D80, better even than the venerable AF nikkor 50mm f/1.8. I've got just enough depth of field to keep a person's face nicely focused from their ear to their nose, but shallow enough to blow out the background in a soup of lovely soft edged blur, this achievable from the rounded aperture blades. Sharpness is unbelievable. I was so surprised at what I got from this lens the first shot I took from it. The zoom ring has a nice feel to it, not too lose, not to tight and the zoom lock is very useful...even though there is zero creep so far. I love that the focus ring has a short throw from infinity to close (which is very close by the way, about 2 and a half inches from the glass at either end of the focal range). I can flick the focus ring, in MF with one finger from infinity to close, and it feels very natural giving great response, as does the zoom ring. The included lens hood is much better than the nikon supplied hoods, being very sturdy and easily put on and taken off. I hear the hood for the nikkor 17-55mm f/2.8 is a pain and has a much larger profile. The tamron hood is nice, does its job, and even fits in my bag without taking it off. It usually stays on the all the time. The lens cap is also very good, like nikon's, can be taken off with the hood in place, which is very convenient. (I hear nikon stole that idea from tamron by the way, but I won't hold it against them)

Now for some things I have noticed that aren't so perfect. But before I share them, I want to make sure that people who will read this understands something that is very important. This is not a pro lens. So it will not be perfect optically and because it extends, or telescopes during zoom it is not sealed from the elements. As I stated earlier in this review, for the money, this is the closest you can get to achieving pro results without spending on the order of a thousand dollars more.

Cons:

There is some significant vignetting, or light fall-off (darkening of the corners) wide open at f/2.8. This is to be expected in most zooms anyway, pro or not. If you are someone who is knowledgeable enough to know why you need this lens, I will assume you've heard of photoshop. In this case, the lens correction filter in CS2, will eliminate 95% of all optical anomalies to include corner vignetting, barrel distortion, and pincusion distortion. That being said, there is little barrel at 17mm believe it or not. Even better than my 18-135mm AF-S. A +2.0 correction makes it go away. I have noticed zero pincusion, but admit that I did not shoot against a grid to notice anything any more than what my eyes can see. As I stated already, there is a chance debris will enter the lens. I have not seen any yet, after a month, but I will not be disappointed if I do, it is to be expected. If you keep your camera protected most of the time, you will likely never see a problem, but there does exist the potential. The only real gripe I have with this lens is the absense of a focus limiter.

There was one time where the AF stopped working altogether, while in AF mode. I was sure to have checked the position of both AF switches (both on lens and on body) and sure enough, no AF. I turned my camera off, then on again and the problem seemed to just go away. This was early on, and it did not happen again. I do not blame the lens directly, it could be a copy issue if it persists, but again, I have not had it happen since the first time. I haven't read that it is a common problem with the lens. I will be utilizing the 6 year manufacturers warranty if there is any further problem (which I do not foresee, but it's good to know I have it nonetheless).

Bottom line, this is a great lens to get you to your next pro level lens if you're tight on cash (as I am). This lens works well and comes from a company that has been around for some time, and will remain for some time to come. You can't beat it for the money. It just works. I am constantly surprised at the quality I get on a consitent basis with this lens. I have been so impressed that I am considering the new 70-200mm f/2.8. We will see.

I hope this review is well recieved, and good luck in your decision.

Tamron SP AF17-50mm f/2.8 XR Di II LD Aspherical 圖例

Canon EOS 300D + Tamron SP AF 17-50mm f/2.8 XR Di II LD

Tamron SP AF17-50mm f/2.8 XR Di II LD Aspherical 配件

67 mm 濾鏡

67 mm 極化濾鏡

• 67mm 3 FILTER KIT POLARIZER + UV + FDL LOOK NEW 11.48 USD
• Nikon D40X - 67mm High Resolution 3-piece Filter Set (UV, Fluorescent, Polarizer) - (not Nikon Brand) 13.15 USD
• Sony Cybershot DSC-R1 - 67mm High Resolution 3-piece Filter Set (UV, Fluorescent, Polarizer) - (not sony brand) 13.15 USD
• Panasonic Lumix DMC-L10 - 67mm High Resolution 3-piece Filter Set (UV, Fluorescent, Polarizer) - (Not panasonic brand) 13.15 USD
• Samsung GX-20 - 67mm High Resolution 3-piece Filter Set (UV, Fluorescent, Polarizer) - (not Samsung brand 14.95 USD
• Tiffen 67mm Neutral Density 0.9 Filter 0.00
• 3 PC. FILTER KIT 67mm 67 Polarizer CPL UV FD FOR CANON NIKON LENS 16.99 USD
• 67MM 3PC. FILTER KIT Cir Polarizer CPL UV FLD ++ FOR Canon Lens 16.99 USD
• Hoya 67mm Circular Blue Polarizer Glass Filter 24.17 USD
• Zeikos 67mm 3-Piece (UV Haze / CPL Circular Polarizing / FLD Fluorescent Correction) Digital Multi-Coated Glass Filter Kit with Case 19.95 USD

67 mm 紫外線濾鏡

• MERKURY 67MM UV FILTER 2.55 USD
• Tiffen 67mm UV Protection Filter 0.00
• HOYA 67mm UV Haze Protection Filter 0.00
• SunPak PicturesPlus 67mm UV Haze & Protection Filter for Digital & Analog Photography
• Opteka 67mm High Definition Professional UV Protective Filter 7.95 USD
• 67mm Multi Coated UV Filter 67 mm UV Lens Protector 7.95 USD
• Opteka 67mm High Definition² UV (0) Ultra Violet Haze Multi-Coated Glass Filter 7.95 USD
• HOYA 67mm Skylight 1B Warming Filter 7.99 USD
• Sunpak DF-7036-UV 67mm Coated Ultra-Violet Filter 9.95 USD
• 67MM PLD+UV+FLD FILTERS - NIKON D50 D70 D70S D100 D200 11.38 USD

67 mm 日光濾鏡

• Sunpak 67mm Skylight 1A Warming Enhancing Filter 5.99 USD
• HOYA 67mm Skylight 1B Warming Filter 7.99 USD
• Tiffen 72MM 1A Skylight Filter for Camera Lens 0.00
• Quantaray - 67mm Skylight 1A Filter 19.99 USD
• Quantaray - 67mm Skylight 1A Multi-Coated Filter 24.99 USD
• Hoya 67mm Skylight Multi Coated Glass Filter 29.99 USD
• Tiffen 67mm Skylight Wide Angle Thin Glass Filter 34.68 USD
• Heliopan 67mm Skylight Filter (KR 1.5) #706715 51.25 USD
• B + W 67mm Skylight 1A Coated Multi Coated (2C) Glass Filter (KR1.5) 54.95 USD
• B+W B & W 67mm EW Filter for Wide-Angle Lenses KR-1.5 Skylight 1A Filter For Color Film

67 mm 鏡頭蓋

• Sunpak Platinum Plus 67mm Camera Lens Cap 1.99 USD
• Snap on Lens Cap 67mm 2.78 USD
• Center pinch 67mm snap-on lens cap with keeper 3.95 USD
• Bower 67mm Plastic Lens Cap 4.95 USD
• Mennon Pro Center Pinch 67mm Snap-On Lens Cap with Leash 4.95 USD
• OP/Tech 11671 67MM FAST CAP 5.04 USD
• Plastic Snap-In 67mm Lens Cap 5.89 USD
• HAKUBA USA INC KA-LC67 67mm LENS CAP 5.99 USD
• OP/Tech 07671 67MM FILTER CAP 6.76 USD
• Olympus LC-67 67mm Lens Cap for 14-54mm & 50-200mm Olympus Lenses 6.85 USD