I too remembered the old film SLR days...I had a Canon AE1 Program I think it was, with a split prism. I remembered not being able to quickly focus with it...for slow work very precise, but no so much for action shots. I didn't like it very much. I love AF what can I say...
Ernie Aubert wrote:
There's no ambiguity in the way it's oriented.
Nice to know, thanks.
There's no menu item for screens in the 5D III.
The menu item (in 5dII and 1d*) was to adjust the exposure metering, since it is influenced by the focusscreen. Focusing as such was not influenced by this setting. The instructions made no mention of "shims".
I know shims could be ordered at Canon as spare parts, but have never needed them myself.
diverhank wrote:
I too remembered the old film SLR days...I had a Canon AE1 Program I think it was, with a split prism. I remembered not being able to quickly focus with it...for slow work very precise, but no so much for action shots. I didn't like it very much. I love AF what can I say...
I find a plain matte screen is faster for MF. I switched to one in my FM3A. Plus, the split prism goes dark with everything but fast primes.