Thanks group! I'm archiving much more lens development history than I'll likely need. Every answer appreciated.
Jack --- Don Sanderson <[EMAIL PROTECTED]> wrote: > The first of the Pentax bayonet lenses were not > given a > letter designation, they are commonly refered to as > "K" > lenses after the mount type. (As opposed to M42 > screw > mount)If you have a good imagination the one long > and > two short flanges on the mount form the letter K if > connected by lines. ;-/ > The "M" series was next and was known for being > lighter > and smaller than their predecessors. > Then came the "A" or "KA" lenses, these have the A > setting and contacts to allow them to work in > "Program" > mode on cameras so equipped, such as the Super > Program > and on up to the ist D/DS. > Then came the "KAF" and "KAF2" which added > autofocus. > These are given the "F", "FA" and "FAJ" letters. > FAJ's have no aperture ring and aperture must be set > on the camera. > Now we have the "DA" lenses with a smaller image > circle to match the the APS size sensor in > the ist D and ist DS. They are KAF2 mount. > The neat thing is all K mount lenses are "Backward > Compatible". (Except for the DA and FAJ) > > And more letters to follow...(We all hope!) ;-) > > Don > > > > > -----Original Message----- > > From: Jack Davis [mailto:[EMAIL PROTECTED] > > Sent: Friday, November 26, 2004 8:29 PM > > To: [EMAIL PROTECTED] > > Subject: What series lens do I have? > > > > > > Among those lens series' referenced on this list, > is > > one designated as "K". In addition to those in my > bag > > carrying the letter ID's; FA, A, & ,M is one > without > > an alpha ID. The markings are limited to: ASAHI > OPT. > > CO., Japan smc PENTAX 1:2.8 24mm 6983748. > > It takes a 52mm filter. > > Is this a "K" lens? > > Knowing will not change my sleep pattern, but the > > question was left alone in my head again. > > > > Thanks, > > > > Jack > > > > > > > > > > __________________________________ > > Do you Yahoo!? > > Meet the all-new My Yahoo! - Try it today! > > http://my.yahoo.com > > > > > > __________________________________ Do you Yahoo!? All your favorites on one personal page � Try My Yahoo! http://my.yahoo.com
