Originally posted by 6BQ5 How do the FF Nikon and Canon bodies handle APS sensors when shooting through the OVF? Does the photographer see the cropped view? I would imagine so. Wouldn't it be awesome if there was some sort of optical auto-zoom in the OVF to enlarged a cropped image circle in the OVF? Wow!
I know the higher end APS and FF Canikons have an OLED overlay on their OVF that is used for the focus points and for adding a grid view. The OLED, when on blacks out portions of the OVF. So when you're AF point shows up it's either a black circle or red depending on the lighting circumstances. I imagine when you put a APS lens on an FF body and it operates in crop mode, the OLED blacks out the cropped area in the OVF. Idk if it does for sure, but that seems like the most logical method.
I would hope Pentax moves beyond the dimly lit red LED focus points to a more functional and easily visible OLED version like the big two.