Don, Thank you. You are absolutely right, so I stand corrected. I checked the 580EX manual and it does state that CF03-1 (which is A-TTL) is not to be used with digital. So the choice is only manual.
Gerard, may I suggest you consider that in this situation or similar use a different flash. Personally I like the Vivitar 285HV which will work fine with the DSLR. It uses its own internal electronics to gauge the flash output and provides 4-auto f-stops. Additionally, the newer HV models have no problem with newer electronic cameras as the trigger voltage is very low. The 285HV sell for between $75 to $US90 brand new. I use two of them when I am not shooting Canon and have to say they are surprisingly accurate. Peter K ----- Original Message ---- From: Don Weiss <[EMAIL PROTECTED]> To: [email protected] Sent: Wednesday, July 4, 2007 1:26:16 PM Subject: RE: EOS ETTL Flash Eye Allergy? Ans: Change to A-TTL <<Peter K replied to Gerard Masas:>> I've seen that in a few people, so I take several shots in succession of the same image. This way there will be some with and some without eyelids shut. If this is consistent and her eyes are always closed even with multiple images taken, on a Canon 550EX or 580EX you can set change E-TTL to A-TTL, the previous method Canon used for flash exposure. This will only use one flash (no pre-flash) and it is just as accurate in portraiture. <<--------------------------------------->> If Gerard is using a Digital SLR, A-TTL isn't available. It's an Off-the-film technique, and doesn't work with digital sensors. Come to think of it, A-TTL emits a pre-flash anyway. Pure TTL would work, but only with film bodies because it too is an O.T.F. technique. So the only options are fully manual flash, or as Adam Baker suggested, FEL. But that requires you to explain to the subjects(s) that the first flash they see is only for "exposure setting purposes." Some of the older Canon Speedlites may have self-contained exposure setting (like the classic Vivitar 283); not relying on the camera, except perhaps for film speed and aperture information. But none of the newer ones, such as the EX series, have this. ____________________________________________________________________________________ Be a better Globetrotter. Get better travel answers from someone who knows. Yahoo! Answers - Check it out. http://answers.yahoo.com/dir/?link=list&sid=396545469 * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
