On Thu, Jan 25, 2007 at 09:58:21PM -0500, Ken Lin wrote: > I was using a friend's 20D and 430EX combination last weekend while out of > town, and was unable to get the AF assist light to come on in very dark > environment by 1/2 press the shutter release [...] > > What other reasons would the AF assist light not come on from this > camera/flash combination? Maybe a function setting on the flash to NOT > output the AF assist light?
You might want to check the 20D's Custom Function 05 (AF assist beam): 0: Emits 1: Does not emit 2: Only ext. flash emits I cannot try this at the moment, but I would expect that setting "1" causes the behaviour you described, and settings "0" and "2" should make the external AF assist light work again. best regards, Mirko * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
