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| p.2 #16 · Sigma 35mm f/1.4 AF problems |
I not sure what you want people to do for you. I now have 2 copies of the lens and have tested it on our D800E, D800, D4, D2Hs, D2h, and D700 and both copies, purchased 6 weeks apart are tack sharp across the entire focusing field on all cameras. One of the 35mm does require a minor AF finetune adjustment but that's perfectly normal. I tend to think based upon current history with the D800's you probably have a camera issue. It only took 3 trips to Nikon to get our D800e to focus and only a single trip for our D800. The now both work well with all 27 of our Nikon, Tamron, Sigma, and Tokina lens whereas before about 6 of the lens had serious issues.
I agree!! the left Af issue only showed on my 50mm 1.8g and my 24-70mm sigma HSM,, didnt show anywhere on my 16-35mm. Consistently on one camera and inconsistly on another. Some examples might help. It is redundant to say but your center focus spots will always be more accurate. However Nikon did both cameras in one trip and it was very short turnaround time. Done end of November and 20th of December.
I can't help but think that anyone that still thinks this is a camera issue just has not read the entire thread. As stated in the original post, I have 11 other lenses that do not misbehave on my D800. The Sigma 35 misbehaved on both my D800 (my D800 has been into Nikon for warranty AF service and came back working perfectly) and my D700, and on another D800 at the camera shop. Perhaps most importantly, Sigma acknowledged that this is a common problem with this lens and that they have a fix for it. You _still_ think it's a problem with my camera?