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06-25-2016, 01:42 PM   #1
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SMC Penax-M 35mm f3.5 lens Questions

Well, I have a chance to pick up a SMC Pentax-M 35mm f3.5 lens. It's not a M42 or a Tak, It's a K mount but not a K - it is an M. The aperture really is f3.5 - not f2.8 or f2 or f1.4.
  • So, I went to PF's lens database here - nada, void, null set, empty, goose egg, nothing.
  • OK, I try googling it - really nothing - this is really surprising.
  • I go to Stan's - again, zippo.
  • Then, I go to Bojidar Dimitrov's and - there is nothing also.
So, I know that Adam put out a call for the few lenses that are not in the database. I have not checked that list - I guess I need to go find it. You mean to tell me that there is a Pentax lens that no one knows about? I find that difficult to believe....

The question is - Does anyone know anything about it? Is it any good? The M42/Tak versions were well though of. It appears that all the K mount variants are very good. I'm somewhat surprised that there is essentially nothing on this lens anywhere - just a black hole lens.



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06-25-2016, 01:49 PM   #2
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Could you post more pics of the front/side/back? Very interesting!

That front element looks awfully large for an F3.5 35mm lens though.

Adam
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06-25-2016, 03:10 PM   #3
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It appears to me from the image this might be an SMC Pentax-M 1:3.5 135mm. Could the glare have hidden the 1? The spacing of numerals suggests it is possible, as does a close inpection of my M135. The Lens Serial Number Database is inconclusive. There is a gap between 8006956 and 8045572 - ample room for a production run of a different lens between these series.
06-25-2016, 03:11 PM   #4
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do you have pictures of the side? 135 3.5?

---------- Post added 06-25-16 at 03:12 PM ----------

monochrome beat me to it

06-25-2016, 03:15 PM   #5
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I think you're right. You can just see the bottom of the "1" in the photo if you look closely.

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06-25-2016, 05:02 PM   #6
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Yes I think it is a 135mm
I have s# 7125812 here.
The confirmation to me is the knurls on the hood, just visible on interested's photo.
06-25-2016, 05:19 PM   #7
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QuoteOriginally posted by Adam Quote
Could you post more pics of the front/side/back? Very interesting!

That front element looks awfully large for an F3.5 35mm lens though.

Could it be a 28mm F3.5 with an incorrectly engraved name plate?
Hi Adam,

Well, that's the only picture I currently have. It had occurred to me that it is an incorrect name plate, but that leaves the question as to what the lens is? It comes in a set of 28/2.8 and a 50/1.7 all M - so a 35mm stands to reason for the lens. It's probably a matter of what aperture it is?
__________________________

Actually a 135 makes a lot more sense. However, the text along with the image says 35mm/1:3.5. Anyway - I'm going to go over to see the set in an hour tomorrow morning. The metal flight case that everything comes in, is worth the effort.



Last edited by interested_observer; 06-25-2016 at 06:21 PM.
06-25-2016, 05:55 PM   #8
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Here's a quick and dirty shot of an M135/3.5 I bought with a camera. It was part of a kit of the same three lenses such as you are considering. My camera store buddy says M28/2.8, M50/1.7, and M135/3.5 was a common consumer selection because it was reasonably affordable versus adding the M85 or M100.

Note the knurled ring outside the beauty ring and in your photo - that is the finger grip for the M135/3.5 self hood.

Just for grins, I cropped this in-camera, resized it down to 2M, WiFi transferred it to my phone using ImageSync and uploaded it to the Forum directly from my ImageSync Album. WiFi proved a convenient feature for this purpose

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Last edited by monochrome; 06-25-2016 at 09:07 PM.
06-25-2016, 06:04 PM   #9
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QuoteOriginally posted by Adam Quote
That front element looks awfully large for an F3.5 35mm lens though

What I want to know is when one of y'all is going to turn up a copy of the M-series 35/1.4....with the K-1, the auspices look better than ever
06-26-2016, 02:32 PM   #10
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QuoteOriginally posted by Adam Quote
Could you post more pics of the front/side/back? Very interesting!

That front element looks awfully large for an F3.5 35mm lens though.
QuoteOriginally posted by monochrome Quote
It appears to me from the image this might be an SMC Pentax-M 1:3.5 135mm. Could the glare have hidden the 1? The spacing of numerals suggests it is possible, as does a close inpection of my M135. The Lens Serial Number Database is inconclusive. There is a gap between 8006956 and 8045572 - ample room for a production run of a different lens between these series.
QuoteOriginally posted by sergysergy Quote
do you have pictures of the side? 135 3.5?

---------- Post added 06-25-16 at 03:12 PM ----------

monochrome beat me to it
QuoteOriginally posted by wombat2go Quote
Yes I think it is a 135mm
I have s# 7125812 here.
The confirmation to me is the knurls on the hood, just visible on interested's photo.
QuoteOriginally posted by CreationBear Quote
What I want to know is when one of y'all is going to turn up a copy of the M-series 35/1.4....with the K-1, the auspices look better than ever
Mystery solved. I went over to the Micky D's for breakfast and met the gentleman this morning. It was his father's kit - and it was a M 135/f3.5. No mythical M-series 35/1.4.......

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