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| p.1 #6 · I talked with Sigma regarding the 35 1.4 and the D800.. |
Sounds like either A) this tech doesn't actually know what you're referring to and thinks you are having the "left focus point" issue. or B) This tech is just making shit up to get you off the phone over an issue he has no answers for.
A third party lens maker doesn't get to go blaming the first party for "firmware issues" when the cameras work with a hundred other lenses. It's a completely illegitimate response. Since others have had friendlier responses, including technicians claiming a fix is already produced(!), I think that this is an erroneous response.
The advice is probably sound, wait until a fix is confirmed, but honestly, I will buy this lens with a domestic warranty even if the problem persists. It's just that good. I can use focus and recompose fairly effectively on all but the closest shots and those are almost guaranteed to be still subjects in which case I can simply use the live view AF which has no problems.
Ultimately, I am certain this is a software problem that Sigma will fix. Assumedly, there are more variables in the D800's behavior that they were unaware of when developing their newer reprogrammable lens controller and simply need to account for it. I'm also confident that they won't REQUIRE you to buy the dock to update the firmware, but, maybe you will want it anyway especially if you plan to buy the 120-300/2.8 which benefits more from its features.
At any rate, the only way we'll know is by waiting. What I'm most interested in now is the truth behind whether or not anyone's D800 + Sigma 35 combo actually works. Some people say they have it working fine. It would be nice to know serial number (or ranges) of both items and whether any fine tuning was needed. It would also be great to hear how they tested because AF testing on shallow DOF lenses is often performed incorrectly with the image plane not in parallel to the test target, allowing for the natural variability of the AF system to produce results that seem like AF failure but are not. Perhaps the people who think things are working are shooting in such a way that masks the problem, or they are just blind
I bought one of these lenses and returned it due to this problem because I bought an import. If it was a domestic warrantied version, I would've just kept it anyway because it is just that good.