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question about smc takumar 28mm 3.5
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PostPosted: Sun Jun 26, 2011 12:20 pm    Post subject: question about smc takumar 28mm 3.5 Reply with quote

i'm thinking about buying this:
http://tinyurl.com/6l42w3t

the k1000 is obviously k-mount.
but i thought that the smc-takumar lenses were always m42?

can anyone tell me if this lens is k- or m42-mount?
either way i think it's a nice price for this set.


PostPosted: Sun Jun 26, 2011 1:07 pm    Post subject: Reply with quote

AFAIK SMC Takumars are all M42. The deal probably includes a M42->K adapter. That 28/3.5 is a good lens.


PostPosted: Sun Jun 26, 2011 2:38 pm    Post subject: Reply with quote

Yes, this must include an adapter. That is a good lens at a good price. The 28/3.5 is rather prized in the Pentax community.


PostPosted: Sun Jun 26, 2011 3:30 pm    Post subject: Reply with quote

That is an M42 S-M-C Takumar 1:3.5/28.

If the lens ring has "Super-Multi-Coated", the lens is M42. If the lens ring has "SMC Takumar", and the lens is 50mm or 55mm, the lens may be either M42 or K-mount. All other "SMC Takumar" are K-mount.


PostPosted: Sun Jun 26, 2011 6:32 pm    Post subject: Reply with quote

visualopsins wrote:
That is an M42 S-M-C Takumar 1:3.5/28.

If the lens ring has "Super-Multi-Coated", the lens is M42. If the lens ring has "SMC Takumar", and the lens is 50mm or 55mm, the lens may be either M42 or K-mount. All other "SMC Takumar" are K-mount.


No, "SMC Takumar" is only M42 mount (barring a repair shop swapping lens rings). When Pentax shifted to the K mount, the lenses shifted to "SMC Pentax". Later, Pentax reused the Takumar name for some lower-cost K-mount lenses, which bear the designation "Takumar Bayonet".

By the way, the only other "SMC Takumar" lenses, besides the 50/1.4 and 55/1.8, 55/2 are, as I recall, the 15mm f3.5 and the 45-125mm f4.


PostPosted: Sun Jun 26, 2011 7:26 pm    Post subject: Reply with quote

MacTak wrote:
visualopsins wrote:
That is an M42 S-M-C Takumar 1:3.5/28.

If the lens ring has "Super-Multi-Coated", the lens is M42. If the lens ring has "SMC Takumar", and the lens is 50mm or 55mm, the lens may be either M42 or K-mount. All other "SMC Takumar" are K-mount.


No, "SMC Takumar" is only M42 mount (barring a repair shop swapping lens rings). When Pentax shifted to the K mount, the lenses shifted to "SMC Pentax". Later, Pentax reused the Takumar name for some lower-cost K-mount lenses, which bear the designation "Takumar Bayonet".

By the way, the only other "SMC Takumar" lenses, besides the 50/1.4 and 55/1.8, 55/2 are, as I recall, the 15mm f3.5 and the 45-125mm f4.


Embarassed You are totally correct, thanks very much!


PostPosted: Sun Jun 26, 2011 7:44 pm    Post subject: Reply with quote

thanx everybody for the very complete information. I've had contact with the seller and the package will be sent to me tomorrow.


PostPosted: Sun Jun 26, 2011 7:55 pm    Post subject: Reply with quote

MacTak wrote:
Later, Pentax reused the Takumar name for some lower-cost K-mount lenses, which bear the designation "Takumar Bayonet".

If we look at the PentaxForums lens database under K-Mount non-SMC:
[ http://www.pentaxforums.com/lensreviews/category-Other-Pentax-Lenses.html ] (primes) and
[ http://www.pentaxforums.com/lensreviews/category-Other-Pentax-Zoom-Lenses.html ] (zooms)
we see:

* Takumar-A 28mm F2.8
* Takumar 28mm F2.8 Bayonet
* Takumar 135mm F2.5 Bayonet
* Takumar 135mm F2.8 Bayonet
* Takumar-A 28-80mm F3.5-4.5
* Takumar-F 28-80mm F3.5-4.5
* Takumar-A 70-200mm F4 Macro
* Takumar-F 70-200mm F4-5.6
* Takumar-F 70-210mm F4-5.6
* Takumar-A 70-210mm F4.5-5.6
* Takumar 80-200mm F4.5 Bayonet

These are sometimes referred to as Tak-A, Tak-B, and Tak-F glass. They're multi-coated, just not SMC. Same optics as their SMC kin but they get no respect. I have owned these:

* Tak-B 28/2.8
* Tak-B 135/2.5
* Tak-A 28-80/3.5-4.5 (sold)
* Tak-A 70-200/4 'macro'

I sold the Tak-A 28-80 because my very old, very used copy was just too loose to handle properly. Sometimes the tank-like Takumar build just doesn't hold up with usage.