[Brightcolours]

Indeed, Dave. It is not hard at all to see online (if one does not want to actually try a modern DSLR oneself)  just how good DSLRs are at focussing with thin DOF. thxbb12 has written about just how impossible it is for PD AF in DSLRs to be accurate with thin DOF, nothing will convince him of the opposite, I think.

 

Lens Rentals has never claimed that focussing on eyes is a difficult task for DSLRs with fast lenses, for instance. Nor did dpreviewers.  That manusurov guy does not actually test AF. I even posted results from different mirrorless cameras and different DSLR bodies (APS-C) tested with 42.5 to 55mm lenses in the past, tested by Foto Magazin, which showed the Canon EOS 70D with EF50mm f1.4 USM lens with PD AF to beat all the mirrorless ones (from Panasonic, Sony, Olympus) in accuracy. All these pros who rely on Canon and Nikon DSLRs and create great stuff are all wrong, I guess.

 

Even my old EOS 450D nailed (past tense, I gave it away to a friend) focus with PD AF sensor depending on the lens used. I can't think of a cleaner test than focus trap (camera takes a photo the moment it sees something in focus with the PD AF sensor. These were taken with my fixed focus 55mm f2 ultra micro nikkor and my self made trap focus adapter:



AF point on the ladybug

AF point on the stamens



 

And there the 450D does not even use its "extra sensitive" f2.8 AF sensor, since it thinks the lens attached is an old slow Sigma 70-300mm lens, and the aperture on the lens is closed to f4/5.6.

 

My 6D does just fine with its PD AF sensor with my 55mm f1.2 lenses and focus confirmation too, by the way. Probably a result of my arrogance. My crappy 28-135mm f3.5-5.6 IS USM is the one that does not focus accurately at all, a lens in dire need of service (also very decentered now).

 

On the issue of low light focussing:

https://www.facebook.com/bespokeimaging....009480538/