the only lens worth using it on is the 35-105/3.5, but it is marginal even in bright light because of the loss of light in the adapter. i think anything slower than a 2.8 isn't worth it. also, an extender magnifies the center portion of the lens circle and so if you are using it on a less than superb lens, you'll get nothing but magnified softness and distortion.
Herb... ----- Original Message ----- From: "Robert Woerner" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Saturday, August 07, 2004 10:08 AM Subject: Pentax 1.7X AF Adapter > Hello, > > I have a friend who is considering moving into AF Pentax film SLR from MF > Super Program. She has the excellent A 35-105 f3.5, A 50 f2.0 in addition to > a Gemini 28 f2.8. I have recommended the ZX-L due to budget constraints > (otherwise I'd recommend the MZ-S). My question is:
