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? -- regards, Henry Posner Director of Sales and Training B&H Photo-Video, and Pro-Audio Inc. http://www.bhphotovideo.com * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
