The only Pentax 135mm that is better than the K135/2.5 is the A135/1.8. (Screwmount, original K mount, newer K, M, A, F or FA) Regards, Bob S.
On Thu, Jul 25, 2013 at 10:12 AM, Darren Addy <[email protected]> wrote: > Interesting article, thanks for the link. > > It would seem that the optical change in the Super-Multi-Coated 135mm > f2.5 from version 1 (5 elements in 4 groups) to version 2 (6 elements > in 6 groups), the same optical design that was carried over to the > first SMC K version) was an example of a "silent change" made by > Pentax. They did change the Part Number (which dealers would have > noticed, and you can find stamped in the little A/M switch) but many > people are completely oblivious to the fact that these are (in fact) > *completely* different lenses with the same name. (In this case it was > an upgrade. The 6 element design (K) is one of the highest rated > Pentax lenses... 9.31 out of 10 > http://www.pentaxforums.com/lensreviews/SMC-Pentax-K-135mm-F2.5-Lens.html) > > Especially aggregious is the supposed "Review Page" on Pentax Forums > for the lens, which groups the two optical designs together so you > don't know if the reviewer is reviewing the one or the other. > http://www.pentaxforums.com/lensreviews/Super-Multi-Coated-TAKUMAR-Super-Takumar-135mm-F2.5.html > > On Thu, Jul 25, 2013 at 10:00 AM, Darren Addy <[email protected]> wrote: >> Had to Google those two acronyms: >> "Two of the common languages spoken on forums are CAKWAF (Complete, >> Absolute Knowledge Without Any Facts) and AFIDAWAB (Any Facts I Don’t >> Agree With Are Bullstuff)." >> >> On Thu, Jul 25, 2013 at 9:45 AM, Aahz Maruch <[email protected]> wrote: >>> Roger Cicala of lensrentals.com talks about silent lens upgrades and >>> makes a few snarky comments about the blogosphere along the way: >>> >>> http://www.lensrentals.com/blog/2013/07/silent-changes >>> >>> (Figured this was only semi-OT given the recent discussion about lens >>> differences.) >>> -- >>> Hugs and backrubs -- I break Rule 6 >>> http://rule6.info/ >>> <*> <*> <*> >>> "He's Quebecois. He puts mayonnaise on *everything*." >>> [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 > > > > -- > "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.
