I forgot to mention, most of the longer than 50mm SMCK lenses may have been the same optically as the SMCT screw versions, but they got a real nice fixed internal rear baffle plate that the screwmounts could not implement due to inexact rotational position when mounted. This further reduced the chance of flare with out of frame highlights not shielded by a hood.
-- J.C. O'Connell (mailto:[email protected]) Home Page - www.jchriso.com Join the Audio CD PLAYER DISCUSSION list - http://tech.groups.yahoo.com/group/cdplayers/ -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of J.C. O'Connell Sent: Tuesday, August 25, 2009 7:26 PM To: 'Pentax-Discuss Mail List' Subject: RE: K55/1.8 question most of the early smcK lenses were just screw to K conversions, but the smcK mechanics were not as nice as the st/smc screw mechanics. There were some optical exceptions though,the K18/3.5, K20/4, K28/3.5, k200/2.5 were all new designs optically. -- J.C. O'Connell (mailto:[email protected]) Home Page - www.jchriso.com Join the Audio CD PLAYER DISCUSSION list - http://tech.groups.yahoo.com/group/cdplayers/ -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Bob Sullivan Sent: Tuesday, August 25, 2009 4:51 PM To: Pentax-Discuss Mail List Subject: Re: K55/1.8 question Scott, I think so... The screw mount 55/1.8 SMC-Takumar was the standard lens for the last Spotmatics. The K55/1.8 was introduced with the KM, KX, K2 as the standard lens. Only later did the K50/1.7 appear. In fact, there is a whole line of SMC knock-offs. The lens sizes and formulas(?) were just re-issued in K-mounts. (I believe the formulas are the same, but no Boz's site for comparison.) With the ME and MX cameras, Pentax re-designed the whole line to be smaller and have 49mm filter sizes(mostly). The K135/2.5 and K85/1.8 are great holdovers from the SMC screwmounts and premium quality lenses in either mount. Regards, Bob S. On Tue, Aug 25, 2009 at 3:27 PM, Scott Loveless<[email protected]> wrote: > Hey there. > > Quick question. I have an SMC-Takumar 55/1.8 screw mount lens that I > really like a lot. Is the K55/1.8 the same optically? > > -- > Scott Loveless > Cigarette-free since December 14th, 2008 > http://www.twosixteen.com/fivetoedsloth/ > > -- > 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. -- 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.
