On Fri, 11 Jan 2002 22:05:37 +0000, you wrote: > 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. > >Ken, > >Canon's lens brochure says the EF25 can NOT be used with the following; any >lens below 20mm focal length (ie 14mm, 15mm fisheye, 20mm), the 24/1.4, >50/1.0, 45/2.8 TS-E, and the 17-35mm and 20-35/3.5-4.5 at the shorter focal >lengths. > >Your lenses should be OK with it, so either it needs a clean or yes, you >have a lemon. > >*
Darrel and Tim - Thanks. Yes, it was purchased used - "mint" - and it does indeed look new. The contacts certainly all look shiny and clean. Maybe I'll try cleaning those off - with what? A Q-tip and some alcohol? I now see that the chart was published in 1990, which explains the absence of two of my lenses, but reaffirms that it *should* work with the early 50/1.8. Ken * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
