06-20-2010, 10:43 AM
[quote name='Pinhole' date='20 June 2010 - 05:15 AM' timestamp='1276974934' post='616']
That said, I still have problems in the far corners with a Canon S, but I don't know if this is a general problem with focus screens.
[/quote]
There are rare times when either the sensor or the focusing screen is not shimmed equally/correctly. These will cause differences in focus between the captured image (sensor) and what's on the VF. And I've heard that misalignment (i.e. focus on one side, etc.) can also be caused by incorrect shimming. I don't think there are multiple shims for the focusing screen, so it has to be your sensor mount then (if there is such a problem at all). Just thinking out loud...
GTW
That said, I still have problems in the far corners with a Canon S, but I don't know if this is a general problem with focus screens.
[/quote]
There are rare times when either the sensor or the focusing screen is not shimmed equally/correctly. These will cause differences in focus between the captured image (sensor) and what's on the VF. And I've heard that misalignment (i.e. focus on one side, etc.) can also be caused by incorrect shimming. I don't think there are multiple shims for the focusing screen, so it has to be your sensor mount then (if there is such a problem at all). Just thinking out loud...
GTW