Digital BW, The Print

In a message dated 6/15/2003 6:42:57 AM Eastern Daylight Time, 
DigitalBlackandWhiteThePrint@yahoogroups.com writes:

> The best you get is 100, the WORST you get is 50.  In reality, you get a
> range of 50-100.  The 50 would be called "RELIABLY".
> 
> Austin
> 

Correct me if I'm wrong, but historically, haven't we put the lens MTF in 
parallel with the film MTF? Like tow 100 ohm resistors in parallel and invert the 
sum of their inverses in the process? and is "reliably"/planning for worst 
case? According to this formula, if either of the MTFs is any lower, the total 
MTF would be less than 50, reliably. If there's a more accurate formula, please 
enlightent me.

Claude


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