Darren, A 40+ year old hybrid lens nobody has ever discovered? Lots of dis-assembly and re-assembly possible over the years. In the old days, people paid VERY close attention and missed it? Regards, Bob S.
On Tue, Aug 13, 2013 at 1:48 PM, Darren Addy <[email protected]> wrote: > Don't know how many will be interested in this, but it is kind of a > big deal if you are looking for the original 8 element Super Takumar > 50mm f1.4 (or think you already own one). > > It started when I found this photo on Flickr: 3 versions of Super > Takumar f1.4/50mm ?! > http://www.flickr.com/photos/kuuan/8312126654 > > The poster here believes that the middle lens is a hybrid between the > 8 element and the 7 element. He goes on to dissect it and prove that > it is a 7 element design. But I discovered taht one thing that threw > him off is actually a Pentax mistake: If you look at the Red Infrared > focusing mark and compare the three lenses, you will see that the > spacing of the lines is different on the true 8 element, as compared > to the other two. The "hybrid" actually has the wrong line painted > red. This gives the impression that it is an 8 element, but if you > look closely you will see that they have actually painted the f4 line > red on the "hybrid". > > I don't know how many example of this there might be out there, but if > you were counting on the red infrared focusing mark as the identifying > feature you might want to look again. I placed a comment in that > photo's thread showing the same thing. > > So the "hybrid" IS a transitional lens, in that they are still using > the A/M designation (like they did on the original 8 element) and not > the later Auto/Man. But it is in all other respects a 7 element lens. > > To help narrow it down a bit, in a later post, Andreas gives the > serial numbers of the two lenses: > 1585445 the 8 element > 1591478 the "hybrid" > > Side note: > The majority of people who are registering the serial number of their > original 8 element Super Takumar 50mm f1.4s are on crack (or believe > they have one since they procurred it from an unscrupulous seller that > listed it as such) > http://www.pentaxforums.com/forums/pentax-serial-number-database/?do=viewserials&id=127 > > -- > "Photography is a Bastard left by Science on the Doorstep of Art" - > Peter Galassi > > -- > 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.
