8/14/2023 0 Comments Sigma 30mm 1.4 focus issues![]() So indeed, the lenses seem to perform extremely well when all shooting conditions are the right range. So I got both of them and the Sigma USB dock for firmware updates and customization/AF tuning. There were some comments, that Sigma lenses need more care for AF tuning. and the 50-100mm/1.8 looked like a great telezoom for the D500. ![]() With the arrival of the D500, my interest in the 2 Sigma Art lenses grew, as the 18-35mm had been hailed by reviewers and internet folklore as super sharp, replacing multiple primes, etc, etc. In the last years, most of my photography centered around FX, but I still liked to use some DX cameras and lenses due to weight, focal range and size benefits. ![]() The idea: Get the Sigma Art 18-35mm/1.8 and the Sigma Art 50-100mm/1.8 for my D500 I never wanted to spend time with creating camera and lens profiles, or loading into my software workflow. Software which has good support for Nikon DSLRs and Nikkors, but can't deal well with non-Nikon lenses (distortion correction, color reproduction, etc.). The second reason is, that my postprocessing workflow is super simple and I basically use only NX2 or D-NX. To name an example: The Sigma 50-150mm/2.8 for DX cameras would be a nice lens - and sometimes is -, but its extensive color fringing reduced quite often the joy to use it more often. The experience sometimes wasn't as good as it could be, so I did not look too often into these brands. 4 Sigma lenses, one Tokina and one Tamron. I have a tiny fraction of non-Nikkors, i.e. Most of the lenses in my cupboard are Nikkor lenses. Not only addressing the immediate AF issue of the SIGMA ART 18-35mm/1.8 lens on the D500, but also further observations and thoughts this experience provoked. This will be quite a long post, as I try to aggregate and summarize many pieces of information. I may now replace it with a Nikkor 1.8/20, not easy as I loved this lens on my D7100. These issues make AF useless on a D500, focus centrally and recompose does not work at f1.8 :( I sometimes had focus issues with the Sigma 18-35 on my D7100 but not in using AF sensors outside the central area. ![]() If you check Thom Hogan's blog on the D500 he also reports the same issue in "The Perfect D500 Lens Kit". Unfortunately I can confirm exactly the same issue with the Sigma 18-35 on my D500. sorry for the bad news.Īndy, thanks for your comprehensive reporting on the AF issues with the Sigma Art zooms on the D500 ! this looks like something that is difficult to correct. I recall that the D2X also had the same problem. I was thinking about returning it to the actual SIGMA service centre/office. sorry, i did not quite get it when you said dealer. Please find below the same far left AF field of the D500 with theīoth lenses were mounted on the D500 and no AF finetuning was applied. The D500 with Nikkors seem to be quite accurate - accross the whole AF area. (Non central) Focus errors of Sigma Art 18-35mm/1.8 on Nikon DX cams (esp D500)īut it looks like that the error with the Sigma Lens is reproducible by others. ![]()
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