>The EOS-3 has it as well. Reasons why it's nice: > > 1) Pinhole cameras using small holes drilled in the body cap (F=64~) > 2) Stop-down metering with T-mount lenses > 3) Setting F8 on your 50mm prime and then switching to your 24-70mm > doesn't change the F-stop > 4) You can set the F-stop before even putting on your lens, great > if you have two bodies (one with slide; one with print film). > >Karen I may be wrong but if you are using a lens with no electronics then the aperture in the body should be set at maximum (=smallest value) at least according to the EOS-FD Macro adapter manual. If CF5 is NOT activated this is done automaticly (aperture will be 00 in my EOS-3). If CF5 *is* activated then you have to do this manually (set aperture to "1.0" in EOS-3). Also my first tests with Canon FL bellows and reversed FDn50/3.5 macro lens with EOS-3 prove this correct. I'm not sure if anything would have happened even if I had set the aperture to 5.6 instead of 1.0. So items 1) and 2) on the list don't seem to benefit from CF5. I thought CF5 has nothing to do with point 3), so... ...if I'm right the only benefit will be item 4) which the manual also mentions. I have CF5 activated all the time. Vesa _________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
