Pentax people: I bought a 1.7 F Pentax teleconverter because somewhere I heard you could use it to convert Pentax A lenses to autofocus lenses. I bought it on eBay, and I think it came from overseas, because I couldn't find it at any of the mail order houses or any of the local photo shops here in L.A.
I can't get it to work properly with my ZX 5n. Coupled with my Pentax 85mm f1.4 A lens, it racks the lens a quarter inch or so, leaves image blurry. If you hand turn the lens all the way out to infinity, it bucks back and forth trying to focus. (I'm test focusing on a TV screen.) If you get close to sharp focus by hand, it will pull the image in till the indicator light flashes in the viewfinder and the beeper sounds, and then it stops. But you may or may not be in sharp focus. It's often close, but then you need to give it a tiny little turn more by hand to get it really sharp. I tried turning the aperture ring to A and the shutter speed dial to A and it seemed to work somewhat better, but not consistently. Coupled with my Pentax 135mm f1.8 A, the AF works much better, but you still must get it close by hand. Anybody got any tips about this? Tony Gieske [EMAIL PROTECTED]
