From: dan otto 
To: James Lerch , atm_free{at}yahoogroups.com
Cc: ATM List 
Reply-To: dan otto 


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James, I had similar results with my version of an automated tester.  I was
testing a f7 8" mirror.  I found that that it was not as bad if I made
a narrow slit but I was still not satisfied that the test results were
valid.  They varied with the brightness of the led or the manual camera
settings just like you described.  I put the mirror back in the scope and
let the project rest so now I don't remember all my conclusions and what I
was going to try next.   I
could resurect the project to help if you need me to try other ideas for
you. The test stand, camera, and platform are still setup.

James Lerch  wrote:

Can anyone help me explain WHY this is happening, or independently confirm
my results on a mirror of similar size and F-Ratio??




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James, I had similar results with my version of an automated
tester. 
I was testing a f7 8" mirror.  I found that that it was not
as bad if I made a narrow slit but I was still not satisfied that the test
results were valid.  They varied with the brightness of the led or
the manual camera settings just like you described.  I put the
mirror back in the scope and let the project rest so now I don't remember
all my conclusions and what I was going to try next.  
 
I could resurect the project to help if you need me to try other ideas for
you.  The test stand, camera, and platform are still
setup.James Lerch
<jlerch1{at}tampabay.rr.com>
wrote:

Can anyone help me explain WHY this is happening, or independently
confirmmy results on a mirror of similar size and
F-Ratio??
 Do you Yahoo!?
The">http://us.rd.yahoo.com/search/mailsig/*http://search.yahoo.com">The
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