If it has a rubberized focusing ring and is more or less black it's an FA if has a ribbed plastic focusing ring and is more or less gray, with maybe a touch of green it's an F. The F also has the focal length emblazoned on the side in international orange.
frank theriault wrote: > On Thu, Feb 21, 2008 at 4:36 PM, P. J. Alling <[EMAIL PROTECTED]> wrote: > >> Are you sure you have an A lens, my A lenses just sort of sit there when >> I try to autofocus with them, (kind of like the K and M lenses)... >> > > Don't be mean. > > I really don't know squat about lenses - an equipment geek I'm not! > > It's an autofocus lens. It has a ring that locks in at A. I thought > that made it an A lens. What do I know? > > It says Pentax 50 on top of it. It opens to f1.7 (although the exif > data only ever shows it opening to 1.8). It's plastic. It focuses > all by itself if I set the body appropriately. > > You tell me what it is! > > ;-) > > cheers, > frank > > > -- Vote for Cthulhu. Why settle for a lesser evil... -- Dr. Jerry Pournelle -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.

