>From: Ken Durling <[EMAIL PROTECTED]> >Reply-To: [EMAIL PROTECTED] >To: [EMAIL PROTECTED] >Subject: EOS More EF25 questions >Date: Fri, 11 Jan 2002 12:40:31 -0800 > >OK, more questions, dammit. The seller initially told me that the >EF25 tube came with a chart showing what lenses it worked with, and >said that it included "all zooms up to 100-300mm." It doesn't. The >28-135 IS is not listed, and neither are any of the 75-300 zooms. I >can't get the tube to work with either lens. In fact, with the 75-300 >I get no viewfinder info at all. > >Then, searching my archives I found the discussion on photo,net >involving Chuck Westfall from Canon in which the following was asked >and answered by him: > > >Q: Can you use an extension tube with the new Canon 75-300 image >stabilization lense? If so, what features are still operable: autofocus? >stabilization? other? > > > >A: Yes. All features are still available, though AF is not recommended. > > > > >So what gives here? > >If the tube is simply incompatible with the 28-135 and the 75-300, >that would be one thing, but the chart DOES list the 50/1.8 (version >not specified) as a compatible lens, but it doesn't work with my early >50/1.8. So either this really is a defective tube, or the >compatibility is only for the 50/1.8 Mk.II, and I just happen to have >3 incompatible lenses.
Ken, was this purchased used? I missed that point if you said it earlier. A Canon EF extension tube should work (read, provide aperture reading) with all EF lenses. Sounds like the paperwork was printed before the 28-135 and 75-300 were introduced. Maybe it old/new stock. Also if it's used, sounds like you got a lemon. Darrell D. _________________________________________________________________ Chat with friends online, try MSN Messenger: http://messenger.msn.com * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
