Quote:Your AF ideas about DSLRs live in the past still... The 5D mk III is very capable of focussing accurately with very shallow DOF. And fast at that.
Toni-a, I forgot which lenses you have. Of course, lenses play a big part in the result. For portrait, FF makes more sense unless you never use shallow DOF in portraits.
My idea about AF accuracy is very much in the present.
If you understand the AF technology behind CDAF vs PDAF (through a separate AF sensor as in a DSLR) you would know your statement doesn't fly.
Shooting the 56mm at f1.2 on Fuji is a non-issue, which is something none of the DSLR shooters can say when using their 85 f1.2 or f1.8 lenses.
Everyone who used a good mirrorless system will tell you exactly the same.
DSLRs are great at certain things, but AF accuracy is definitely not one of them.
Since I know you're gonna come back with some silly rebuttal, here is what Nasim Masurov from photographylife.com, who is not exactly someone without DSLR experience, said about AF in his review of the Sony A7RII (link to the review here):
How does it compare to DSLRs? When it comes to AF speed, the best lenses on DSLRs feel a bit faster in comparison, but for the most part, I would say that the AF speed is comparable. However, when it comes to focus accuracy, the A7R II is absolutely amazing. In fact, looking at the images I have captured with the A7R II and my Nikon DSLRs, I am yet to see an image that was poorly focused on the A7R II and I sadly cannot say the same thing about my Nikon DSLRs. One of the main reasons for such superb performance is phase detection built directly on the sensor, instead of a secondary sensor sitting on the bottom of the camera chamber in DSLRs. Phase detection with a secondary mirror is prone to all kinds of issues and if any of your lenses are not in sync with the camera, even a detailed calibration process can result in inconsistent AF behavior. There are a number of problems with lens calibration – you cannot save adjustments at different distances (adjustments often vary quite a bit with distance) and you cannot save adjustments at different focal lengths. Mirrorless cameras are immune to such focus issues, because the image is projected directly on the image sensor and there in no separate focus system. If there is a phase detection system present on the camera (as in the case of the A7R II), since the phase detection pixels sit directly on the sensor, what you see is basically what you get. Another reason for such superb accuracy is the new AF system on the A7R II – it just does a great job at nailing focus, especially when you photograph people. The camera is smart enough to track faces and when you track the subject with the Eye AF feature, it does a phenomenal job at continuous AF adjustments, keeping the eye constantly in focus at varying distances. To date, I have not seen a single DSLR that can track subjects as well as the A7R II does, which shows just how good the hybrid AF system on the Sony cameras has gotten lately…