Hmm, I'm a bit confused now. What I knew so far is that EOS cameras use FEC in bright light to give better fill flash, but AFAIK, this takes effect only at EV 11 ISO 100 and above (1/125 f4). If you are talking about indoor situations, this is supposedly below EV 11, so it must be a different effect that you describe.
I recently got the 550EX for my EOS30 and I was also surprised to find several slides coming out a bit darker than expected. If it is true that ETTL generally underexposes by 2/3 stops, them this must be a widely known fact in this group, I suppose. So my question is if anybody else has observed the same underexposure with ETTL? br/Stefan. John Chennavasin wrote: > > Canon has programmed the E-TTL flash exposure to behave as a fill light > source, so the flash exposures indoors are underexposed 2/3 to 1 stop*. > > E-TTL is also is easily fooled if the subject contains large amounts of > white or black, or is highly reflective. > > FEL isn't available if you use CF-2 to move the AF activation to the * > button. > > The thyristor-type strobes (and the old Canon TTL system) use a more > center-weighted pattern, and will give proper exposure. > > *It's better to dial in +2/3 flash exposure compensation. +1 tends to blow > out highlights more easily. > > on 12/18/01 8:08 PM, Bob Markey II ([EMAIL PROTECTED]) wrote: > * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
