Quote Originally Posted by grahamp View Post
The first thing to do is to make sure you able able to focus the edge of the center spot on the screen easily, ideally using the flip up magnifier. Use a loupe or magnifier if necessary. If you can't do that, the focus tests won't work.

There are pictures of the pressure plate and the screen at http://grahampatterson.home.comcast....c220/c220.html

dear grahamp,

ofcourse i already able focusing in the edge of center spot..before i using c220, i already use roleiflex and rolleicord..and im courious using c220 but when im occupied it...comes this issue..and yet im still not starting to test focusing testing with the papper simulation..because i dont have any experience on mamiya system