--- "Kotsinadelis, Peter (Peter)" <[EMAIL PROTECTED]> wrote:
> ===== > Bob, > > Sounds good, but somehoe I do believe it. Reason > being the spin doctors at > Canon would have talked this one up since the 3D > feature of Nikon is so > highly regarded. > Secondly, according to all I read about E-TTL it > fires a low-power preflash > of a known level to determine correct flash exposure > to measure reflectance > of the scene, then calculates proper flash output to > achieve a midtoned > subject. The metering it uses for ALL E-TTL > autoflash is the 21-zone > evaluative metering linked to the focusing point. So > where does distance > come in According to Chuck, there's a "sanity check" (My words, not his) done on the reflectance results, and if the exposure seems unreasonable, then distance information is used. Of course, I have no way to verify the claim, but Chuck doesn't seem like the sort to make things up. This information was provided in an exchange on the Compuserve photo forum, btw, where Chuck used to spend a lot of time. (Maybe he still does, but I don't.) Bob __________________________________________________ Do You Yahoo!? Yahoo! - Official partner of 2002 FIFA World Cup http://fifaworldcup.yahoo.com * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
