Product Description
The Sigma APO 50-500mm F4.5-6.3 DG OS HSM is a 10x high zoom ratio ultra telephoto zoom lens incorporating Sigma's original Optical Stabilizer function. This lens covers a wide range of focal lengths from 50mm to 500mm ultra telephoto. The OS (Optical Stabilizer) function offers the use of shutter speeds approximately 4 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 SLD (Special Low Dispersion) glass elements provide excellent correction of color aberration. The Super Multi-Layer Coating reduces flare and ghost 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. It incorporates HSM (Hyper Sonic Motor), ensuring quiet and high speed AF 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 95mm and the lens is supplied with a step down ring enabling digital cameras with an APS-C size image sensor to use an 86mm filter. Specification (For Sigma mount) Lens Construction: 22 Elements in 16 Groups Angle of View: 46.8-5.0 degrees Number of blades: 9pcs (Rounded diaphragm) Minimum Aperture (W): F22 Minimum Focusing Distance: 19.7-70.9 in./ 50-180cm Maximum: 1:3.1 (f=200mm) Filter Size Diameter: 95mm Lens Hood: Petal-type hood (LH1030-01) supplied Dimensions: Diameter4.1in.?8.6in./104.4mm?Length 219mm Weight 69.5oz./1,970g
- Construction 16 Groups /22 Elements Angle of view 46.8° - 5° F stop range 22 Closest Focusing Distan
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Sigma 50-500mm f/4.5-6.3 APO DG OS HSM SLD Ultra Telephoto Zoom Lens for Pentax Digital DSLR Camera Reviews
| 89 of 91 people found the following review helpful  Focus-Focus, Amazon Verified Purchase This review is from: Sigma 50-500mm f/4.5-6.3 APO DG OS HSM SLD Ultra Telephoto Zoom Lens for Canon Digital SLR Camera (Electronics) Just received the lens. Using with a Cannon EOS XTi.Pros - Sturdy feel to the lens - Impressive focal length range. - Good picture quality throughout the range (speaking as a non-pro) - OS pretty good. Taking acceptable quality hand-held shots at full extension in bright sun. Cons - Autofocus not working out-of-the-box. Of note that this lens was NOT in the serial number range specified by SIGMA's customer alert. - Very poor response time on queries to SIGMA's tech service. - Some (minor) vignetting noticable at longer focal lengths. - Does not work with my TAMRON teleconverter even though this TC does function with my Cannon lens. - Heavy Returning the lense for replacement through AMAZON due to the autofocus issue. Will see how well the next one does. UPDATE: Received replacement lense from AMAZON with working autofocus. Took it out today for extensive testing and am well... Read more 56 of 59 people found the following review helpful  I am amazed, By Eric Zhang (Georgia, USA) - See all my reviews Amazon Verified Purchase This review is from: Sigma 50-500mm f/4.5-6.3 APO DG OS HSM SLD Ultra Telephoto Zoom Lens for Nikon Digital DSLR Camera (Electronics) I've had this lens for a few days and am very pleased with it. Given the fact that it's covering such a wide range, I didn't expect it to have very high IQ, yet I am pleasantly surprised. I measured it against my super sharp Nikon 70-200mm f/2.8 VRII with TC-17, both @ 340mm f/6.3 and f/8, and the IQ is about the same on a D300s, even though on a full frame D3s, the 70-200mm + TC-17 is slightly sharper. This is quite remarkable, because 70-200 f/2.8 VRII is one of the best lenses Nikon has ever made, and it can produce better pictures at 100mm than the highly regarded Tokina 100mm macro lens I own, and even when shooting macros, the 70-200 + TC-17 + Canon 500D combo is comparable to the Tokina 100mm.Image color is great, with vivid contrast. I had a few bird shots at fully extended 500mm and they turned out to be great pictures. CA is minimum too, only slightly visible when fully zoomed in, and no worse than my 70-200+1.7 combo. Focus is fast, even though it has always... Read more 35 of 39 people found the following review helpful  Nice Lens, By Campby (Texas) - See all my reviews This review is from: Sigma 50-500mm f/4.5-6.3 APO DG OS HSM SLD Ultra Telephoto Zoom Lens for Nikon Digital DSLR Camera (Electronics) Rented this lens for my son and nikon 500mm f4 for myself for yellowstone photo vacation. Honestly the 50-500 was considerably more useful. OS seemed to be better or at least equal to nikon vr, only slightly less sharp, contrast and colors are also very good. Size difference is huge and he was able to get shots before i could manuver the huge nikon lens. Autofocus was snappy and acurate, he was able to get spot on pictures of golden eagles at 500mm in flight free hand held. I grabbed his camera to jump into a riverbottom and get pictures of a bull moose, that's when i realized just how good this lens seems to be. 6.3 is a little dim but with ISO performance getting better less of an issue. I've always had issues with non-nikon lenses hunting but didn't experience it or at least it was small enough it didn't leave an impression. Distortion seems aceptable and after i review the photos a bit i will likely purchase one. |
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