04-01-2014, 01:54 PM
Hi,
Is AF precise at large apertures? in general yes (if well callibrated) in fact I have changed my mat viewfinder screen for a split screen and although it's very good, the AF nails it more reliably and that's at F1.4 on an APSc screen, full frame I am sure would be easier.
But, a lot of progress has been made in terms of live view and also electronic viewfinders, "focus peaking" (creates a white/coloured border around objects in focus) is a very reliable and is a precise method of manual focusing , albeit from the screen, I use it quite a lot as it gives me access to cheap S/H MF lenses that to me would be otherwise to much of a pain to bother with. Fuji I think have this feature in some of their electronic viewfinders, cleverly implemented so as to appear as a an enlarged rectangle with focus peaking and /or splitimage rangefinder operating within it.
As has been said, Samyang make MF lenses which are excellent quality/value and are expanding their range, so it shows that MF is still no where near over, not to forget Zeiss!
Is AF precise at large apertures? in general yes (if well callibrated) in fact I have changed my mat viewfinder screen for a split screen and although it's very good, the AF nails it more reliably and that's at F1.4 on an APSc screen, full frame I am sure would be easier.
But, a lot of progress has been made in terms of live view and also electronic viewfinders, "focus peaking" (creates a white/coloured border around objects in focus) is a very reliable and is a precise method of manual focusing , albeit from the screen, I use it quite a lot as it gives me access to cheap S/H MF lenses that to me would be otherwise to much of a pain to bother with. Fuji I think have this feature in some of their electronic viewfinders, cleverly implemented so as to appear as a an enlarged rectangle with focus peaking and /or splitimage rangefinder operating within it.
As has been said, Samyang make MF lenses which are excellent quality/value and are expanding their range, so it shows that MF is still no where near over, not to forget Zeiss!