Full frame sized imageLenses that create APS-C sized image are designed for digital only. They cannot be used on cameras that have image sensor larger than the APS-C format. These lenses are not suitable for film cameras either. No Ultrasonic AFLenses with ultrasonic focusing mechanism tend to be quiter and faster than traditionally focusing lenses. No stepping motor AFLenses with stepping motor focusing mechanism are better for contrast based focusing, and are quiter and faster than traditionally focusing lenses. One or more Low Dispersion lens element is usedLow Dispersion lens elements help to reduce chromatic aberration. Not stabilizedImage stabilization helps to reduce blur caused by hand shake, especially at high focal length or in low light situations. Image stabilization can give 1 to 3 stop advantage over none stabilized lens, based on the reciprocal rule. Metal mountCheaper lenses are usually equipped with plastic mount, while more expensive, professional lenses have metal mount. In general, metal mounts are more durable, and a good thing to have when lenses are changed a lot. When a camera is used mainly with one lens, the material of the lens mount is not that important. Internal FocusingInternally focusing lenses don't change their size while setting focus. The front lens is fixedThe fixed front lens is not rotating during zoom and/or focusing. This allows the photographer to use petal shaped lens hood. Fixed front lenses also make the use of polarization filters a lot easier. No drop-in filter supportDrop-in filters are used in those lenses where either the front lens is too large, or the field of view doesn't permit the use of traditional filters at the front of the lens. Usually bright tele and ultra-wide angle lenses support this filter type. |
|
This digitally opimized compact apochromatic ultra-telephoto zoom lens is ideal for taking sport, nature and landscape photographs. The five group zoom and rear focus systems ensure stability and ease of use. The use of asperival lenses reduces distortion aberration to less than 1%. Three pieces of Special Low-Dispersion (SLD) glass compensate for secondary color aberration. High image quality is obtained throughout the entire zoom range. A removable tripod collar is included as a standart component, as a tripod should be used to prevent unintentional movement.
|
Available mount(s) | Canon EF, Nikon F, Pentax K, Sony / Minolta A, Sigma |
Application(s) | Portrait, Wildlife |
Category(s) | Tele zoom |
Multiplier | 1× |
Stabilizer | no |
Focal length | 170 - 500 mm (2.9× zoom) |
Lens construction | 13 elements in 11 groups |
Angle of view |
35mm: 14.5-5° digital: 8.4-2.9° |
Number of blades | 9 |
Maximum aperture | wide: f/5 tele: f/6.3 |
Minimum aperture | wide: f/32 tele: N/A |
Minimum focusing distance | 300 cm |
Magnification | 0.17× |
Filter size | 86 mm |
Size | ∅ 92.5 × 232 mm |
Weight | 1345 g |
Notes |
|
AF speed | N/A |
AF sound | |
Internal focusing | yes |
Internal zoom | N/A |
Fix front lens | yes |
Mount type | metal |
Weather sealed | N/A |
Drop in filter | no |
Ultrasonic AF | no |
Stepping motor AF | no |
APS-C sized circle | no |
Low dispersion lens element | yes |
Hard case | N/A |
Soft case | N/A |
Lens hood |
LH925-01 printable lens hood |
Tripod adapter | N/A |
Discontinued | yes |
Apr 14, 2006
After reading many mixed reviews on the web, I wasn't too sure about the picture quality when I received it. But it turns out to be an excellent big zoom for the money. I have no other 500mm lenses for comparison. But the pictures I took in dark night outdoor (tripod) and some indoor shots (hand... [ show more ]
Aug 3, 2006
Much has been written praising the Sigma 50-500mm zoom lens, often called the "Bigma." This lens is clearly its equal in everything but zoom range. I was very surprised when I purchased mine, used, and discovered that its sharpness was much better than I expected, and its autofocus speed every... [ show more ]
Jul 9, 2007
This is an extremely versatile lens capable of handling many different shooting situations. I have been using this lens for a couple years now and my only complaint is that there is no zoom lock so in between shots where the lens is pointed up at a fairly steep angle you will need to make sure... [ show more ]
Mar 12, 2007
I own two lenses from Sigma, and I love them both. This ultra telephoto lens is possibly the best bang for your buck in the focal its focal range. If there is a better one in its class I've yet to see it. Manual Focus ring is well placed, easy access, we all like that, right? Sharpness has not... [ show more ]
Nov 4, 2007
I own two lenses from Sigma, and I love them both. This ultra telephoto lens is possibly the best bang for your buck in the focal its focal range. If there is a better one in its class I've yet to see it. Manual Focus ring is well placed, easy access, we all like that, right? Sharpness has not... [ show more ]
Apr 10, 2007
I own two lenses from Sigma, and I love them both. This ultra telephoto lens is possibly the best bang for your buck in the focal its focal range. If there is a better one in its class I've yet to see it. Manual Focus ring is well placed, easy access, we all like that, right? Sharpness has not... [ show more ]