On Mon, 14 Jan 2002 13:31:38 -0500, you wrote: >At 02:00 AM 01/12/2002, you wrote: >>By the way, I know the Canon >>literature syas "Autofocus not recommended" with the EX tubes, but >>should it work at all? > >Doesn't that in part depend on the effective maximum aperture of the lens >plus tube? On The Elan 7, the Focusing Range = EV 01 - 18 (At ISO 100 With >1.4 Lens). With a 28~135/f/3.5-5.6, what's the effective max aperture with >the EF25 tube attached? > > >--
Good point, but I can't even set the aperture to max with the tube attached, since it's not reporting any aperture info at all. With this in mind, I tried it with my 50/1.8 - first putting the lens on the camera and setting it to f/1.8 so it would "rememeber" - and then put the Ex tube in between. Should certainly work at f/1.8. Still nothing. Off to the repair shop. Ken * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
