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Old Jun 6, 2005, 8:07 AM   #11
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NHL wrote:


Can you repeat the above flash experiment and change the camera focusing to the background instead (without moving the camera position)... Just wondering if the E-TTL2 flash exposure is linked to the distance info from the lens - and not 'evaluating' the background for some situation?

Just tried and it works the same ... It's like Canon wants to change the fill flash ratio for Av and Tv without changing the subject illumination (i.e., instead reduce the background illumination).

I even thought it might be because I was using FEC (I had 1/3 stop dialed in), but after zeroing FEC it did exactly the same thing.

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