|APO||The lens incorporates low dispersion elements to minimize chromatic aberrations and ensure excellent sharpness and contrast even at maximum aperture.|
|DG||The lens is designed for full-frame SLR cameras but can be also used on APS-C SLR cameras.|
|OS||The lens is equipped with optical image stabilizer. The stabilizer allows to increase the shutter speed by several stops and shoot handheld in such lighting conditions and at such focal lengths where without stabilizer you will have to use tripod, decrease the shutter speed and/or increase the ISO setting which can lead to blurry and noisy images.|
|HSM||The lens is equipped with ultrasonic motor to provide very fast and virtually silent autofocus. Learn more|
|Position in the lineup|
|Sigma 50-500mm F/4.5-6.3 APO DG OS HSM||Feb 2010||⊗|
|Sigma 50-500mm F/4-6.3 APO EX DG HSM||Feb 2005||⊗|
|Sigma 50-500mm F/4-6.3 APO EX RF HSM||2000||⊗|
|Maximum format:||35mm full frame|
|Diagonal angle of view:||46.8°-5° (35mm full frame)|
|37.6°-3.9° (Canon APS-H)|
|30.4°-3.1° (Canon APS-C)|
|31.6°-3.2° (Sony APS-C)|
|31.6°-3.2° (Nikon APS-C)|
|31.6°-3.2° (Pentax APS-C)|
|27.9°-2.8° (Sigma APS-C)|
|Lens construction:||22 elements in 16 groups, including:|
|Number of blades:||9|
|Closest focusing distance:||50mm: 50 cm|
|500mm: 180 cm|
|Type of autofocus motor:||Hyper Sonic Motor (Canon EF)|
|Hyper Sonic Motor (Minolta/Sony A)|
|Hyper Sonic Motor (Nikon F)|
|Hyper Sonic Motor (Pentax K)|
|Hyper Sonic Motor (Sigma SA)|
|Full-Time Manual Focus:||Yes|
|Image stabilizer:||Canon EF|
|Stabilizer features:||Mode 1|
|Stabilizer efficiency:||up to 4 stops|
|Weight:||SA: 1970 g|
|Maximum diameter x Length:||SA: Ø104.4 x 219 mm|
|Filter size:||95 mm|
Design and Features
The lens barrel is large, heavy, made of metal. The lens mount is metallic.
The lens has a very wide focal range. Formally it is the advantage, however in practice it causes certain problems with compensation of optical aberrations and equally high image quality at the entire focal range.
The lens features a zoom lock lever to keep the zoom ring fixed at the shortest focal length of 50 mm. This function is convenient for carrying a camera with the lens on a strap because it prevents the lens from extending.
The lens features AF/M focus mode switch.
|AF||Autofocus mode with Full-Time Manual Focus.|
|M||Manual focus mode.|
The lens uses front filters with standard size of 95 mm which are easy to find. However, filters of such size are more expensive and mainly used with professional lenses.
The filter thread does not rotate during focusing which allows convenient use of different types of filters (including but not limited to polarizing and gradient).
Versions of the lens for Canon EF, Nikon F и Sigma SA mounts feature optical image stabilizer, which, according to the manufacturer, compensates up to 4 stops of shutter speed. Theoretically it allows to capture sharp images of static subjects at shutter speeds down to 1/31 second at focal length of 500 mm*).
*) without the need to increase ISO sensitivity and/or use a tripod, at the same lighting conditions and at the same aperture
At the choice of the photographer the image stabilizer can operate in one of the following modes:
|Mode 1||Corrects vertical and horizontal camera shake. Mainly effective for shooting still subjects.|
|Mode 2||Corrects vertical camera shake during following shots in a horizontal direction.|
2) On a tripod
|User Manual. Multilingual, Adobe PDF, 2 MB|
Alternatives (AF, 44-560 mm)
|Sigma 50-500mm F/4-6.3 APO EX DG HSM||2005||⊗|