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| p.1 #16 · Sigma 35mm f/1.4 AF problems |
Erik Moore wrote:
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.
Thanks Dave. To clarify, you are are saying the when autofocusing with the left and rightmost points, your Sigma 35 nails focus with your D800?
Unless my camera has a problem with this lens and this lens only, it is not a camera problem. I own and regularly shoot several other fast primes, from 24G to 200/2, and none of them behave like this on my D800. What's more, (also stated above) the Sigma 35 is behaving the same on my D700.
Yes both my lens are working on the outer most focus points on both the D800E and D800 with no problems as well as all of the rest of our Nikon bodies. Because of the type of work we do we regularly test all lens when we get them to see if there are any issues. Perhaps it is time for you to return and move on unless you want to use Sigma service which has been terrific for us as of late. Much better then the 6 1/2 weeks Nikon (NPS) took to fix a minor issue on our last D3s (which I should have kept). Best of luck.
Additional: My son just walked in and we tried it on his D800 and D4, both copies work great on his bodies.
Thanks so much for your feedback. This is my second copy, and both were misbehaved, albeit not identically. I will be talking to Sigma today.