> ------------------------------ > > Date: Sat, 25 Sep 2004 08:08:07 +0800 > From: "Rod Hefford" <[EMAIL PROTECTED]> > Subject: EOS 28-70 f2.8L > > The above lens has a switch on the side that is either 1.5m - > infinity or 3m - infinity. > > The documentation that came with the lens is unhelpful, what > does this switch do? > > Thanks in advance > > Rod
It's a Focus limiter. You control the range the camera/lens will try to AF in. In theory, the 3m - infinity is faster because the camera won't include the 1.5m to 3m range when it hunts for focus. It'll only do that if you select the 1.5m - infinity range. Paul Wasserman * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
