Gerry, If you stop the lens down whilst still on your camera, and then remove it, it should stay at the aperture it stopped down to. This should reduce some flare in your proposed system. The lens can be set back by remounting on your camera. Also there's a UK company offering reversing rings for Canon EF lenses, which may be of some use to you. Try http://www.srbfilm.co.uk/index.html .
M Stewart Milton Keynes, UK ----- Original Message ----- From: Gerry Morgan <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Saturday, October 20, 2001 5:17 PM Subject: EOS Reversing Lenses for Macro > I'm planning to try out reversing a lens for macro work. I'm interested in > getting approximately 3x magnification. I thought that this technique > worked by mounting a second lens reversed on the front of the first lens, > giving a magnification equal to the focal length of the main lens divided > by that of the reversed lens (50mm reversed on 200mm lens gives 4x > magnification). > > But when I looked on the web for reversing rings, I found a lot of items > for sale that are specific to a particular mount. For example, on the B&H > site, under the macro accessories section, "Reverse adapter Canon to 52mm". snip * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
