Sigma 170-500mm f/5-6.3 DG RF APO Aspherical Ultra Telephoto Zoom Lens for Nikon SLR Cameras from Digital Camera Showroom

This compact ultra telephoto zoom lens covers a range up to 500mm and optimized for digital SLR cameras. The new multi-layer lens coating and lens design reduce flare and ghosting. This lens uses one aspherical lens and three SLD (Special Low Dispersion) glass elements for excellent correction all types of aberration, resulting in better picture quality on both film and digital SLRs.This compact ultra telephoto zoom lens covers a useful range up to 500mm and is ideal for sports, nature, wildlife, and landscape photography. It lets you bring your far away subject up close. This lens uses one aspherical lens and three SLD (Special Low Dispersion) glass elements for excellent correction all types of aberration, making high-quality images a reality throughout the entire zoom range.The five-group zoom and rear focus systems ensure high performance stability and ease of use. Since the front of the lens does not rotate, a circular polarizing filter can be easily attached and use. A zoom hood is supplied with this lens to prevent flare and ghosting as well as extraneous light harmful for image quality. A removable tripod collar is also included as a standard component.

Sigma 170-500mm f/5-6.3 DG RF APO Aspherical ...- User Rating:
Summary for Sigma 170-500mm f/5-6.3 DG RF APO Aspherical ...- decent, long and affordable lens
Notes on Sigma 170-500mm f/5-6.3 DG RF APO Aspherical ...- I didn't have much of a budget w/ which to shop for a long telephoto lens-about $500. I was able to find this lens (APO only; not DG,RF)at a reputable on line photography outlet(used, excellent quality) for that price. Eventually , I spend about $60-$70 more to buy a Tiffen 86mm UV filter(coarse thread!)to protect large, exposed front element (from same outlet) & new hood (directly from Sigma)
My first shots were disappointing but I expected that. I've achieved better results after learning to: shoot from a steady tripod w/ a remote release or even handheld at very fast shutter speed - 1/ 1000 or faster. depending on light, try to stop down (from 6.3 to f /8 or f/11 too.
Then, if willing give up some distance (use 400mm VS. 500mm)this seems to produce a better photo.
I'd like to experience "pro" Nikon glass, but couldn't afford to go there.
Hope this helps....
Pablo
(p.s. check out sigma 170-500mm photo pool on FLICKR; my photos are of humming birds, deer, etc.)

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Sigma 170-500mm f/5-6.3 DG RF APO Aspherical ...- User Rating:
Summary for Sigma 170-500mm f/5-6.3 DG RF APO Aspherical ...- good optics, long range
Notes on Sigma 170-500mm f/5-6.3 DG RF APO Aspherical ...- This lense was just what I was hopeing for. I needed the 500mm for my wildlife photography and once stopped down a click or two it was very sharp. There are other lenses that are sharp too but they can't touch this price.

Very happy with my purchase.

Ed

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