Super-Multi-Coated Takumars are better built than SMC Takumars which are better built than SMCK lenses which are better built than SMCM lenses which are better built than SMCA lenses. I cant speak for the af lenses..... As far as manual focus lenses go, each new series went downhill than the previous after the fabulous Super-Multi-Coated Takumars. jco
-----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of P. J. Alling Sent: Wednesday, February 08, 2012 9:45 PM To: Pentax-Discuss Mail List Subject: Re: New lenses DA 560/5.6, DA 50/1.8 On 2/8/2012 2:52 PM, Toralf Lund wrote: > On 2/8/12 5:33, Bob Sullivan wrote: >> Where I've experienced problems with the A series plastic aperture >> ring is the A28/2.8 lens. >> The A50's have never caused me any problems, and they are so much more >> functional then the K's or M's. > Well, the A50/1.7 is the only lens I have had such problems with. The > M version somehow seems slightly more well built... Only, because it is. > > - Toralf > >> Regards, Bob S. >> >> On Tue, Feb 7, 2012 at 6:37 PM, Darren Addy<[email protected]> >> wrote: >>> On Tue, Feb 7, 2012 at 6:25 PM, Bob Sullivan<[email protected]> >>> wrote: >>>> I agree. There is not much difference in Pentax 50mm lens performance >>>> from the K50/1.4 thru M50/1.4, A50/1.4, and FA50/1.4. Same for the >>>> K50/1.7 thru M50/1.7, A50/1.7, and F50/1.7. I expect the same applies >>>> to the F50/1.4 and FA50/1.7, but I've never used those particular >>>> lenses (or even held copies of them). Regards, Bob S. >>> If relatively similar optically then one must look beyond the optics >>> when making a choice. >>> Shallower DOF. Build quality (the A50 f1.7 is notorious for aperture >>> ring problems due to plastic internal tab construction that is >>> apparently not a problem on its siblings lenses. Tactile preferences. >>> etc. >>> >>> I've settled on the A50 f1.4 for the most bang-for-the-buck and >>> ease-of-use. I keep a K55 f1.8 around just because it is so cheap >>> (some people seem to prefer the 55 to the 50, but I don't think I'm >>> one of them). I've got the equiv in SMC Takumars, mostly for my >>> Spotmatics. >>> >>> Darren Addy >>> Kearney, Nebraska >>> >>> -- >>> 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. > > -- Don't lose heart! They might want to cut it out, and they'll want to avoid a lengthily search. -- 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. -- 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.
