Focus problem in MF

Sorry, I misunderstood. By "interchangeable" I was thinking of just "changeable", as in the screen can be changed.

The K10D and DS take the same size of screen, but the K10D's LF80 is brighter than the DS's LF60. In fact the brighter screen is nice in the DS, though there is a slight metering error in theory - which didn't bother me when I did it.

The DL takes a different size.

I did use one of those cheap chinese screen for a bit. Too dark, not the blackout problem, that allways happens. Just too dark all the time.
I think I did evertyhing allright, but I'll check.

I think it'll have to be Katzeyes with optibright for me... Ouch my wallet.