The filter diameter on the M is 49mm. I think that kind of seals the deal. I can see why the M is generally more highly regarded. I did not know that they added a group. I've actually wanted the 3.5 for some time now. Maybe I should snag one from KEH.
On Sun, Aug 17, 2014 at 9:31 AM, P.J. Alling <[email protected]> wrote: > The K 135 f3.5 and the M 135 f3.5 have very different designs, the former > being a 4 element 4 group the later being 5 element 5 group, the M is also > quite a bit shorter and lighter than the K roughly a 1/2 inch, (12mm to be > exact), and about a quarter pound lighter, despite the M having a built in > lens hood. You can look at the specification for the M here > <http://www.bdimitrov.de/kmp/lenses/primes/tele/M135f3.5.html> and the K > here <http://www.bdimitrov.de/kmp/lenses/primes/tele/K135f3.5.html> there > are links to images of the optical designs and everything. > > > On 8/17/2014 9:22 AM, Zos Xavius wrote: >> >> 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 >> <[email protected]> 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 <[email protected]> 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 <[email protected]> >>>> 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 <[email protected]> >>>>> 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 <[email protected]> >>>>>> 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 <[email protected]> >>>>>>> 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 >>>>>>>> [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. >>>>>> >>>>>> >>>>>> >>>>>> -- >>>>>> Photographers must learn not to be ashamed to have their photographs >>>>>> look like photographs. >>>>>> ~ Alfred Stieglitz >>>>>> >>>>>> -- >>>>>> 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. >>>> >>>> -- >>>> 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. > > > > -- > I don't want to achieve immortality through my work; I want to achieve > immortality through not dying. > -- Woody Allen > > > -- > 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.
