William,
I disagree somewhat with you on the diagonal split image. The advantage is
that you can use the screen for both
horizontal and vertical as you state. However, there aren't nearly as many
diagonal lines as horizontal and vertical.
In addition, the only time the diagonal split image wouldn't work is when the
diagonal of the split image and the object
to be focused on are both in the same plane. How often would that happen?
Or, am I missing something? If I am, please help me out.
Brian Huber
-----Original Message-----
From: William Sommerwerck [SMTP:williams@xxxxxxxxxx]
Sent: Friday, March 12, 1999 8:45 AM
To: olympus@xxxxxxxxxxxxxxx
Subject: [OM] labels -- final comments; Intenscreen metering; DoF
clarification
snip
If you're trying to focus critically, you _don't_ want a focusing screen with a
45 degree split image. The only purpose of a slanted rangefinder is that it
allows focusing on either vertical or horizontal lines. It is otherwise _less_
accurate, because it is more difficult to see when diagonal lines are correctly
aligned.
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