In a message dated 2/24/01 9:37:35 PM Eastern Standard Time, 
[EMAIL PROTECTED] writes:

<< Until yesterday, I have discovered the auto 
 aperture would be set quite differently by two different flashes - Metz 
 40MZ3i and Pentax AF200T. With the 40MZ3i, the chosen aperture was f2 while 
 the AF200T chose f8. The lens was 43/1.9. Any idea why?
  >>
The AF200T was set to ISO 640 (f/8)? 
TTL flashes set up on the ISO # so ISO 800 = f/11, with some lenses sometimes 
f/9.5.

Mafud
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