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

