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06-09-2007, 06:19 PM   #1
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SMC "K" lenses

Can anyone give me a list of which lenses were made in the original (pre M) K mount and if or how they differ from the SMC Takumar versions? I know there is a 35 and a 200. I saw a 50/1.4 on ebay that in hingsight I should have grabbed.

06-09-2007, 08:08 PM   #2
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If you are willing to do a little digging you can find this info in the SPLOS lens database at Jim Colwell's site: http://www.jcolwell.ca/_SPLOSdb/SPLOSdb-2004-06-30.pdf

The SMC Takumar lens list on pages 8 and 9 notes which optical designs were carried over to the original K mount lenses.

Last edited by jamesk8752; 06-09-2007 at 08:18 PM. Reason: typo
06-09-2007, 10:19 PM   #3
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Lens data base

QuoteOriginally posted by Skorzen Quote
Can anyone give me a list of which lenses were made in the original (pre M) K mount and if or how they differ from the SMC Takumar versions? I know there is a 35 and a 200. I saw a 50/1.4 on ebay that in hingsight I should have grabbed.
This forum actually boasts a lens database! Here are the K lenses:

https://www.pentaxforums.com/lensreviews/category-SMC-Pentax-Lenses.html

And the Takumar lenses:

https://www.pentaxforums.com/lensreviews/category-Pentax-Takumar-M42-Screwmount-Lenses.html

The optical formula is provided for many of the lenses so that you can compare.
06-11-2007, 05:36 AM   #4
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QuoteOriginally posted by Skorzen Quote
Can anyone give me a list of which lenses were made in the original (pre M) K mount and if or how they differ from the SMC Takumar versions? I know there is a 35 and a 200. I saw a 50/1.4 on ebay that in hingsight I should have grabbed.
I think you will find that Takumar K mount lenses are essentually the screw mount lenses manufactured with the initial K mount when pentax changed over in the 1970's.

SMC (stands for super multi coated) lenses are a follow on generation. Pentax was the initial lens developer for multi coating. These are excellent lenses and will generally today sell for more than the same Takumar lens.

SMC-M lenses were brought out as Pentax elected to try and chase olympus (I think OM-10) and become the market leader in really compact cameras. The M series were to compliment the ME, MX, ME Super, etc... and part of the design included a standardization over a wide range of lenses with a 49mm front filter. The compact nature was to be a marketing feature that pentax still suffers from today to some extent.

The KA lenses came about as Penetax entered the multi finction camera era, with the Program and Program Plus, which had both apature and Shutter priority modes and a program mode that used lens data to select the "optimum" in some designer's mind, shutter and apature.

I trust this helps

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