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.
