This version of the Sigma 50-500mm F4-6.3 DG APO OS HSM is designed for the Canon full-frame DSLRs. Having said that the lens also works on crop sensor powered Canon cameras (EF-S mount). The focal length on an APS-C camera becomes the equivalent of an 80 – 800mm lens mounted on a 35mm camera.
This is one of the two Sigma lenses that gives you a very affordable reach into super-telephoto realms allowing you to use your full-frame or crop sensor DSLRs for birding, wildlife and even some interesting landscape imagery.
The built-in Image Stabilizer mechanism works to give you up to four stops of slower shutter speed capabilities, which comes handy when a feathered subject you are stalking is perched amidst thick foliage.
This lens sports Sigma’s apochromatic design elements which should guarantee you better quality images with greater sharpness and contrast even when shot at its longest focal range. Hyper-sonic Motor ensures that the lens delivers a quiet auto-focusing performance, ideal for shooting fidgety subjects such as birds and small animals.
APO 50-500mm F4.5-6.3 DG OS HSM
The Sigma APO 50-500mm F4.5-6.3 DG OS HSM is a 10x high-zoom ratio, ultra telephoto zoom lens incorporating Sigmas original Optical Stabilization (OS) function. This lens covers a wide range of focal lengths from 50mm to 500mm ultra telephoto. The OS function offers the use of shutter speeds approximately four stops slower than would otherwise be possible. For Sony and Pentax mount, the built-in OS function of this lens can be used even if the camera body is equipped with an image sensor shift anti-shake system. As compensation for camera shake is visible in the view finder, the photographer can easily check for accurate focus and ensure there is no subject movement. Four Special Low Dispersion (SLD) glass elements provide excellent correction of color aberration. The Super Multi-Layer Coating reduces flare and ghosting, and ensures high image quality throughout the entire zoom range. This lens has a maximum magnification ratio of 1:3.1 (at the focal length of 200mm), making it ideal for close-up photography. This lens incorporates Hyper Sonic Motor (HSM), ensuring quiet and high-speed auto focus, as well as full-time manual focus capability. The addition of the optional 1.4x EX DG or 2x EX DG APO Tele Converters produce a 70-700mm F6.3-8 or a 100-1000mm F9-12.6 MF zoom lens, respectively. This lens is equipped with a petal-type hood to block out extraneous light. The filter size of this lens is f95mm and the lens is supplied with a step-down ring enabling digital cameras with an APS-C size image sensor to use a f86mm filter.
- APO 50-500mm F4.5-6.3 DG OS HSM