> There are times with my 100 macro (EOS1n) when the in-focus indicator
> does NOT agree with my by-eye judgement through the eyepiece.

Hi Bob,

It is possible to fool the AF sensor with repeating patterns like venetian
blinds or feathers shot in macro. Try these 1, 2, 4, 8 pixel grids:

 http://groups.yahoo.com/group/elan7e/files/Julian%20Loke/bw01.gif
 http://groups.yahoo.com/group/elan7e/files/Julian%20Loke/bw02.gif
 http://groups.yahoo.com/group/elan7e/files/Julian%20Loke/bw04.gif
 http://groups.yahoo.com/group/elan7e/files/Julian%20Loke/bw08.gif

Cheers
Julian Loke

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