That's true, J.C. but that is the part you are least likely to see when looking at photos (online auctions, etc.) The lens will either be on the camera or they will have a cap on the back. Unless the seller knows what they actually have, in which case somebody else can buy it. : )
On Tue, Aug 13, 2013 at 3:25 PM, J.C. O'Connell <[email protected]> wrote: > FWIW, > > The easiest way to tell a true 8 element is the rear glass element > protrudes unprotected. On the later 7 element versions the rear > element glass has a metal rim protecting it. > jco > > > > > On 8/13/2013 2:48 PM, Darren Addy 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 >> > > > -- > J.C. O'Connell > [email protected] > -- > > > > -- > 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. -- "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.
