Digital Concepts PTTL flash and K10D?

Started Feb 18, 2007 | Discussions thread
Guy Ashkenazi New Member • Posts: 7
Re: Digital Concepts PTTL flash and K10D?

If you think about it for a few seconds, you'll understand that NO
P-TTL flash will 'deliver' a 'full charge'... The pre-flash uses a
portion (even if it is rather small) of the capacity..

That's true, but once the optimal exposure level at full charge had been reached, the P-TTL under exposes by 1 EV - it gives the same result as the manual at 1/2 setting.

I wonder if this is the flash's fault, or is it the body which never asks for a full charge? Does this also happen with the Pentax flashes?

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