>Date: Mon, 26 Jan 2004 23:18:41 -0800 (PST) >From: Alex Z <[EMAIL PROTECTED]> >Subject: Re: EOS Canon flash e-ttl issues. ... system. First of all, any ETTL user MUST understand it's basic requirement - it's tied to active ASF point for most of its flash exposure calculation, so each time prior to releasing the shutter, make sure your current active AF point is right on the subject, preferable on top of its most improtant part you want to be sure to be exposed properly (say, people face, forehead).
--- Alex is correct, but putting the AF point right on critical exposure subjects at exposure time is not always feasible for the desired composition. That's when FEL (flash exposure lock) is needed to pre-flash the critical exposure piece (e.g. face) with the center AF point/Partial metering circle, for flash-metering, lock it in memory, then re-compose the shot, then release the shutter. ... none of which can yet automatically account for non-middle gray tones (e.g. caucasian skin). So even with E-TTL and FEL, one still has to apply FEC (flash exposure compensation) as needed Cheers, David [EMAIL PROTECTED] * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
