rta1023 Loc: Wyckoff, NJ

Hello all, I have been reading the Hog for a while, but this is my first question. I am a hobbyist just learning (and loving) the intricacies of digital photography and I have an opportunity to pick up a used Sigma 50-500mm 1:4-6.3 APO EX DG HSM for a very good price, about $600. I will primarily be using this lens for sports photography, particularly swim meets, and eventually wildlife.

My issue is that I can’t test it out on my camera before I purchase it and once purchased, it’s a final sale. Although maybe foolish, given that it is such a good deal, I am considering (yet undecided) taking the risk nonetheless. I have read on Dyxum, however, that there are issues with this lens and the a77. Apparently, Sigma announced that auto focusing does not work properly when some older Sony fitting Sigma lenses are used with the Sony a77 and that they will be supplying a free update to their customers.

Has anyone experienced this and if so, how was it resolved? I am not sure what a “free update” actually means. Any advice is very appreciated.

MT Shooter Loc: Montana

That "compatibility" update is free from Sigma, if it is needed at all. What you would be out is the cost of shipping to send it in. I would also recommend sending your camera body with the lens and asking for the lens to be focus tuned to your body, its a nominal fee and makes a WORLD of difference for the sharpness of the images you will get.

wingclui44 Loc: CT USA

Looks like this one is the old non VR version, I suggest not to buy it. I have this same lens for my Nikon only 5 year,the auto focus motor failed, even I had been using it very lightly!

rta1023 Loc: Wyckoff, NJ

Yes, but doesn't the Sony version exclude VR because it built into the body of the a77? I may be wrong but that's what I thought...

wingclui44 Loc: CT USA

This f4-f6.3 was the old version without VR no matter what camera mounting, the new f4.5-f6.3 version has VR built in.

chapjohn Loc: Tigard, Oregon

Sony A mount cameras have steady shot in the camera. Some of the newer Sony E mount cameras have steady shot in camera that will work with the VR in the lens. Higher end Sony E mount lenses also have VR in the lens.

AlohaBob Loc: Los Angeles, CA

This is not a lens specific answer, but I have an A77 and the best money I ever spent was getting Gary Friedman's ebook on the A77.

http://friedmanarchives.com/alpha77/index.htm

rta1023 Loc: Wyckoff, NJ

Thank you for your responses so far, quite helpful...