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10-03-2009, 02:53 PM   #1
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Takumar 135mm f2.5

I have a Takumar 135mm f2.5 lens that I have used on my 35mm cameras infrequently. I have tried it several times on my K10 and I am highly disappointed in the image quality and contrast of the resulting photos. Invariably the images are hazy and low contrast, however in focus.

Has anyone else had experience with this lens. It isn't a SMC lens and possibly that is the reason it's image quality is so poor. For now it stays with my daughter and my ME Super and the Pentax SMC M-28-50 zoom. The reason I'm saddling her with it is because it does seem to work OK on a film camera, and secondly she's not likely to use it very much. I've read elsewhere that it might be one of the poorest lenses that carries the Pentax name. Is that correct?

10-03-2009, 03:51 PM   #2
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Is it a bayonet mount? If so it is not one of the better Pentax lenses (budget lens that carried the Takumar name after the Takumars had stopped production). With that said, there are a few threads here where people have enjoyed using it.....perhaps there is also something wrong with it?
10-03-2009, 04:12 PM   #3
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It is a 4 element lens and not very good. Sound like your is fine for what it is.
10-03-2009, 04:55 PM   #4
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Almost bought one of these before realizing the difference between the Takumar and smc versions.

10-03-2009, 05:35 PM   #5
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With the Takumar Bayonet 135mm - use the hood, don't shoot into the sun, and have low expectations. You will occasionally be pleasently surprised. Advice for your daughter, I guess.
10-03-2009, 05:49 PM   #6
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QuoteOriginally posted by krypticide Quote
Almost bought one of these before realizing the difference between the Takumar and smc versions.
So did I, a number of years ago. Fortunately I gained the necessary knowledge before it was too late, & picked up the SMC version. Pentax should never have tarnished the venerable M42 Takumar name with the lesser bayonet versions. It's confusing to newbies, & borders on willful deception.
10-03-2009, 05:57 PM   #7
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QuoteOriginally posted by raymeedc Quote
So did I, a number of years ago. Fortunately I gained the necessary knowledge before it was too late, & picked up the SMC version. Pentax should never have tarnished the venerable M42 Takumar name with the lesser bayonet versions. It's confusing to newbies, & borders on willful deception.
I would agree with you except that they did this almost 40 years ago, before many newbees were born. I doubt that they considered way back then the confusion it would cause now
10-03-2009, 06:02 PM   #8
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It is a Tak in name only. It is probably coated but not smc. There are actually 2 version of this lens, both have 4 elements in 4 groups. The other is f2.8. The 2.5 version has a built in hood and the f2.8 version doesn't. I think the built in hood is not adequate. All of the f2.5 Taks had either 4-5 or 6-6 optical formulae.

10-03-2009, 06:03 PM   #9
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QuoteOriginally posted by Lowell Goudge Quote
I would agree with you except that they did this almost 40 years ago, before many newbees were born. I doubt that they considered way back then the confusion it would cause now
Only 30 years ago . . . the first bayonet f2.5 was released in 1980. However, if you ever tried to collect taks, the 135mm m42 models and versions will drive one batty until figured out.

Last edited by Blue; 10-04-2009 at 05:54 PM.
10-03-2009, 06:53 PM   #10
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QuoteOriginally posted by Lowell Goudge Quote
I would agree with you except that they did this almost 40 years ago, before many newbees were born. I doubt that they considered way back then the confusion it would cause now
I was referring to the willful deception they undoubtedly had in mind when they were initially released to a large segment of their unknowing customers that had until that time associated Takumars with high quality glass.
10-03-2009, 07:13 PM   #11
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I wouldn't be surprised if these are CPC with Takumar stuck on them.
10-04-2009, 03:24 PM   #12
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QuoteOriginally posted by smc Quote
Is it a bayonet mount? If so it is not one of the better Pentax lenses (budget lens that carried the Takumar name after the Takumars had stopped production). With that said, there are a few threads here where people have enjoyed using it.....perhaps there is also something wrong with it?
Yes it is a bayonet mount purchased new some time after I bought my ME Super. It has seen very little use and is in almost pristine condition. It has the pull out lens hood and is really a very good looking lens from the outside. However the IQ isn't so hot.
10-04-2009, 03:42 PM   #13
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QuoteOriginally posted by Blue Quote
Only 20 years ago . . . the first bayonet f2.5 was released in 1980.
You realize that 1980 was 30 years ago, right? I know...where does the time go?
10-04-2009, 05:53 PM   #14
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QuoteOriginally posted by aerodave Quote
You realize that 1980 was 30 years ago, right? I know...where does the time go?
Yes, I meant 30 in response to the 40 years. I have been typing too fast lately. The last version of the bayonet Tak went out of production 21 years ago. As far as where the time goes, I'm still wrapping my mind around the idea that a k1000 I bought in 1985 is "vintage."
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