I'll just try a couple of your questions. 3) the xL is to be used only on 300mm or longer lenses wherein it intrudes into the rear of said lenses. It contains more expensive 'low dispersion' elements for an improved image.
4) I would think a "very good" A 70~210 f/4 could be had from a photo house for somewhere around $100 US. Hope helpful. Jack --- Russell Kerstetter <[EMAIL PROTECTED]> wrote: > 1) Is Asahi to Pentax as Nikkor is to Nikon? If so, then what is > Takumar? > > 2) A salesman at a store told me that I can use 67 lens' on my istDL, > is this true? If so, how well does it work? > > 3) What is the difference between the Pentax xl and xs > teleconverters? > > 4) How much should I expect to pay for an A70-210/4 in good condition > (not mint, not trashed)? > > Thanks for helping out the newb. > > Russell > > __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

