Quote: it should only be an issue on the pentax digital bodies if you are using M42 lenses
even manual K mount lenses are focused wide open and stopped down only for the shot (or DOF preview, or Green button)
Quote: kthung I have a question about black out. You say it blacks out at small apertures, is this only when you are manually stopping down? Does this mean that if you use modern AF lenses, you won't run ino this problem?
Well, that would be nice if it were entirely true. Unfortunately, on longer glass, even with modern AF, the blackout can be a problem wide open. Don't forget, wide open for some long glass is not uncommon @ f5.6--here are where problems can begin.