Re: For sale: A superb SMC K 135mm f2.5 (not "Bayonet")

2014-08-17 Thread P.J. Alling
I think the M is more highly regarded because there are simply more M's available. I doubt that an M will out preform a K that hasn't been abused. That said, the 135mm focal length was exceedingly popular and most designs were refined over the years until by the mid 70's it was just about imp

Re: For sale: A superb SMC K 135mm f2.5 (not "Bayonet")

2014-08-17 Thread Bob W-PDML
On 17 Aug 2014, at 13:44, "Stanley Halpin" 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. Hence the phrase 'Ignorance is bliss'. B -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml

Re: For sale: A superb SMC K 135mm f2.5 (not "Bayonet")

2014-08-17 Thread Zos Xavius
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

Re: For sale: A superb SMC K 135mm f2.5 (not "Bayonet")

2014-08-17 Thread P.J. Alling
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

Re: For sale: A superb SMC K 135mm f2.5 (not "Bayonet")

2014-08-17 Thread Zos Xavius
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

Re: For sale: A superb SMC K 135mm f2.5 (not "Bayonet")

2014-08-17 Thread P.J. Alling
On 8/17/2014 8:43 AM, Stanley Halpin 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 of

Re: For sale: A superb SMC K 135mm f2.5 (not "Bayonet")

2014-08-17 Thread Stanley Halpin
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

Re: For sale: A superb SMC K 135mm f2.5 (not "Bayonet")

2014-08-16 Thread Zos Xavius
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 wrote: > Yes, the weak Takumar 135/2.5 in K mount has a multicolored dof

Re: For sale: A superb SMC K 135mm f2.5 (not "Bayonet")

2014-08-16 Thread Bob Sullivan
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

Re: For sale: A superb SMC K 135mm f2.5 (not "Bayonet")

2014-08-15 Thread Darren Addy
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 desig

Re: For sale: A superb SMC K 135mm f2.5 (not "Bayonet")

2014-08-15 Thread Bob Sullivan
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 wrote: > As you probably know, this is the K-mount version of the a

Re: For sale: A superb SMC K 135mm f2.5 (not "Bayonet")

2014-08-15 Thread knarf
I have one. I love it. Cheers, frank On 15 August, 2014 7:40:48 PM EDT, Darren Addy 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

For sale: A superb SMC K 135mm f2.5 (not "Bayonet")

2014-08-15 Thread Darren Addy
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 c