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APS Shooter wrote:
How often did you shoot it wide open? What distance(s) typically and upon which bodies?
Any images to share,along with the techniques used?
Thank you.
I used one on the D750 and D810 in the past and recently on the 5div (replaced Nikon with Canon for numerous reasons, not to be detailed, here). So we had two versions of the Sigma, for Canon and Nikon.
In addition we use the Canon version of the 50mm/1.4 Art, 24Art and the new 85/1.4Art amongst many other lenses. The 24 and 35 have the most hiccups in AF, whereas the new 85 Art is significantly improved.
We use the 35 for people shots between f1.4 to f2 almost exclusively, at around 4m to MFD most of the time (with the exception of group shots).
The older Sigmas show AF fails regularly (Focal showed about 1 in 8 shots completely off). The Canon 35ii doesn't have this issue at all, 99,8% consistency score in Focal.
The most difficult time is on the dance floor or at locations with a strong mix in artificial lighting, or when using flash with AF-assist light. Canon 5div proved to be better in my experience, but especially the Nikons had severe back focus in that case which drove us crazy. I sent the 50Art back twice until I got a copy not showing the same issue that drastically. We still switch to DPAF LV in critical situation with the 50mm. This is really an issue many forums discuss.
What do you mean with images, examples of mis-focussed images?
Examples of our work at www.brigitte-foysi.de
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