Hi,
I just got a new 28mm 2.8 lens that backfocuses--obviously and painfully (Thirty bucks if anyone's interested in buying it
--oh yeah, and it flares unless the light source is just about over my shoulder. Oh, and the purple fringing is absolutely beautiful, almost heavenly--it's a CPC Phase 2, made by Cosmicar. Cosmicar--how can you resist?).
Anyway, this lens prompted me to put my camera on a tripod, and run some tests. I found that the camera slightly backfocuses on all my lenses. My question is this: if I run the debug program and adjust the focus, will it affect my split-screen focus? Right now, the autofocus indicator and the prism split are right on with each other--both slightly behind (or would that be in front of?) the target.
I'm most interested in having the split prism accurate, since my faster lenses are mostly going to be manual focus primes. But I would love it if they were both on.
Thanks for any knowledge on this,
Vinny