Originally posted by ChipB Just tried my ys mount lens, with a T mount and I was able to achieve infinity focus - so, perhaps a different issue.
Can you post a few shots of your t-mount adapter? If you can really get infinity focus on your ys lens with an unmodified t-mount adapter, I am betting that you have a different brand adapter than I do.
Also, before I changed my focusing screen to a split prism one, my camera was indicating that far away stuff was in focus even though it wasn't.
With the split focusing screen I can get way better focus on everything with manual lenses.
I still need to adjust the AF confirm because it seems to be slightly front focusing with AF.