PF users rate the K 135/3.5 as superior to the M counterpart, but I've also heard the opposite being true. I may be wrong, but I believe both have the same optical fomula. Pentax clearly did some tweaking to formulas though between the two series because the K series counterparts generally perform slightly better according to reviews.
On Sun, Aug 17, 2014 at 8:43 AM, Stanley Halpin <s...@stans-photography.info> wrote: > 15± years ago confusion about the 135mm lens lineup was the reason I went > looking for information. And found what later became the PDML. And found a > range of opinions and advice. I gathered and synopsized all of the opinions > about all of the 135mm offerings and that was the beginning of my (now > dormant) online repository of opinion on Pentax lenses. > > WRT 135mm, the consensus was that the best was the A 135/1.8, next was the K > 135/2.5, but a close competitor to both of these was the M 135/3.5. > > stan > > On Aug 16, 2014, at 8:59 PM, Zos Xavius <zosxav...@gmail.com> wrote: > >> This explains all the mixed reports I've heard about the K 135 2.5. A >> big part of me wants to fill my bag with nothing but K series glass. >> My back might not like that though... >> >> On Sat, Aug 16, 2014 at 11:29 AM, Bob Sullivan <rf.sulli...@gmail.com> wrote: >>> Yes, the weak Takumar 135/2.5 in K mount has a multicolored dof scale >>> on the barrel - always easy to spot on ebay. I also believe it is not >>> multicoated glass. The older SMC K 135/2.5 is an excellent lens, >>> second only to the A135/1.8. Most people don't know about it. >>> Regards, Bob S. >>> >>> On Fri, Aug 15, 2014 at 11:31 PM, Darren Addy <pixelsmi...@gmail.com> wrote: >>>> Bob, >>>> Sorry, I should have explained that part a bit better for those who >>>> are unaware of the confusing state of Pentax's 135mm f2.5 offerings. >>>> >>>> Here are the versions of the 135mm f2.5 made by Pentax: >>>> Screwmount: >>>> 1) Super Takumar and S-M-C Takumar Version 1 >>>> 2) S-M-C Takumar Version 2 (6 element design) >>>> >>>> K-mount >>>> 3) SMC K 135mm f2.5 (6 element design) >>>> 4) Non-SMC & confusingly named "Takumar Bayonet" version which you can >>>> find almost anywhere for $50/60. >>>> >>>> So I was making the point that the one I am offering (3) is the same >>>> optical design as (2) but not to be confused with the vastly inferior >>>> (4). >>>> >>>> Hope that clears things up. >>>> >>>> On Fri, Aug 15, 2014 at 11:12 PM, Bob Sullivan <rf.sulli...@gmail.com> >>>> wrote: >>>>> A bit confusing offer. >>>>> There is a SMC K 135/2.5 lens in a K bayonet mount, but you say NOT >>>>> BAYONET. >>>>> So are you offering a screwmount version? Why not say so directly? >>>>> Regards, Bob S. >>>>> >>>>> On Fri, Aug 15, 2014 at 6:40 PM, Darren Addy <pixelsmi...@gmail.com> >>>>> wrote: >>>>>> As you probably know, this is the K-mount version of the acclaimed >>>>>> Super-Multi-Coated Takumar 135mm f2.5 (version 2), the 6-element >>>>>> design. This is the finest optical design Pentax made in the 135mm >>>>>> focal length. On a DSLR it gives you the equivalent of a 200mm FOV and >>>>>> f2.5. >>>>>> >>>>>> This one is gorgeous cosmetically, optically, and mechanically and >>>>>> comes with the original clip on hood, front & rear caps, and matching >>>>>> "SMC Pentax" hard case. If you are picky about the used lenses you >>>>>> purchase, this one is for you. >>>>>> >>>>>> $199 plus actual shipping cost to your address. Email me off-list for a >>>>>> quote. >>>>>> I prefer not to use Paypal, but would be happy to issue you a Square >>>>>> Invoice if you desire to pay by credit/debit card. >>>>>> >>>>>> Respectfully, >>>>>> Darren Addy >>>>>> Kearney, NE >>>>>> >>>>>> -- >>>>>> Photographers must learn not to be ashamed to have their photographs >>>>>> look like photographs. >>>>>> ~ Alfred Stieglitz >>>>>> >>>>>> -- >>>>>> PDML Pentax-Discuss Mail List >>>>>> PDML@pdml.net >>>>>> 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 >>>>> PDML@pdml.net >>>>> http://pdml.net/mailman/listinfo/pdml_pdml.net >>>>> to UNSUBSCRIBE from the PDML, please visit the link directly above and >>>>> follow the directions. >>>> >>>> >>>> >>>> -- >>>> Photographers must learn not to be ashamed to have their photographs >>>> look like photographs. >>>> ~ Alfred Stieglitz >>>> >>>> -- >>>> PDML Pentax-Discuss Mail List >>>> PDML@pdml.net >>>> 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 >>> PDML@pdml.net >>> 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 >> PDML@pdml.net >> 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 > PDML@pdml.net > 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 PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
