Summary: This is an impressive lens at less than half the cost of the Nikon offering. I take a lot of cityscape photos and I'm several miles from the subject, yet when properly focused, this lens captures details of signs on the highway and the structures of the buildings are clear and crisp. The lens is very heavy for toting around for wildlife photography, but it's the lens to have for birds and beasties. Be prepared for comments like "my what a big lens you have.
8 from Nikon that I am not thinking of selling just because I like this lens so well and it does everything the ...
Richard E. Peters, Amazon
14 August 2014
Summary: I purchased this lens used. I have nothing but praise for the lens. I have a 70-200 2.8 from Nikon that I am not thinking of selling just because I like this lens so well and it does everything the 70-200 does IMHO. I find that I can get great shots without a tripod if lighting is good. Pros: Great lens for those needing the magnification and needing to be able to carry it around!
Summary: As a Nikon buff I've not been sufficiently motivated to pay Nikon's dollars for a great zoom, telephoto. This Sigma, affectionately called the 'Bigma' is indeed a big, heavy lens. I'm able to shoot hand-held with my 800E, but would not like to have to do it all day. It makes the trip from 50-500 with ease and has allowed of course those telephone shots that just would not be made with a lesser lens.
Summary: Got my copy earlier today. ..blazing fast auto focus surprisingly so...locks on focus in less than a second. ..faster than my pro 70 to 200mm lens.....only gripe is the sheer weight of this lens .
Nikon users beware: Sigma mount 50- 500, 150-500 and 150 macro.
30 March 2014
Summary: I experienced numerous erroneous readings when using the 50-500 lens, for example: a reading of f:0, F99 or no reading whatsoever along with camera freezing that required a battery removal to reset the camera. I returned the lens for another copy. That copy worked for months of little usage, however when I needed it for continuous use during the fall birding season it failed after a few days, exhibiting the same problems as the original lens.