> Date: Thu, 04 Aug 2005 01:06:20 -0400 > From: "Mr. Bill" <[EMAIL PROTECTED]> > Subject: EOS Front or Rear? That is the question! > > Folks, > > A local friend of mine and I were debating front curtain sync vs. > rear. > > I put forth the proposition that while I understand the advantages of > rear curtain sync in certain situations, I could not think of any > disadvantage to rear curtain sync and therefore have set rear curtain > sync as my cameras default. > > Are there ever any disadvantages to rear curtain sync? > > Is there any situation where you would rather use front curtain sync?.
With ETTL there is a disadvantage: before the picture is taken, a pre-flash is fired to determine the correct exposure. After the curtain is fully open, the flash is fired "for real". If you use 2nd curtain sync with a relatively long exposure time, there will be a relatively long time between both flashes. This might cause your subject to react to the preflash before the "real" flash, just like you often see with red-eye-reduction based on a preflash. Regards, Stefan. * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
