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Old 10-11-2008, 03:10 PM   #781
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Asahi Takumar 135mm f/3.5 Chrome
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Old 10-11-2008, 06:44 PM   #782
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Super Takumar 105mm 2.8 @ f/4 + Vivitar 285HV off camera

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Old 10-11-2008, 07:31 PM   #783
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Question Takumars optical data

Hi,
Where could I find an exhaustive complete list of Takumar lenses (especially the 50mm's), necessarily including the optical formula for each one.
I search for something in Bojidar Dimitrov style (too bad he doesn't include the M42 lenses in his lists).

I'm searching that as I am working on a research study (for a Ph.D aggregate) upon the evolution of Asahi/Pentax normal primes (optical side approach only) from the earliest Takumar to the latest Pentax FA 50/1.4.

Thanks in advance.
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Old 10-11-2008, 07:32 PM   #784
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have you tried writing directly to pentax?
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Old 10-11-2008, 07:39 PM   #785
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Originally Posted by Gooshin View Post
have you tried writing directly to pentax?
Yes I did. They sent me from one to another a few times (in about one and a half months) and finally someone answered me to apologize as they cannot disclose this type of info.
That's a crap, as the most of the newer Pentax lenses have been released along with their optical formulas. On B.Dimitrov site you can find almost any formula since the K-mount.
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Old 10-11-2008, 09:53 PM   #786
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Originally Posted by huqedato View Post
Hi,
Where could I find an exhaustive complete list of Takumar lenses (especially the 50mm's), necessarily including the optical formula for each one.
I search for something in Bojidar Dimitrov style (too bad he doesn't include the M42 lenses in his lists).

I'm searching that as I am working on a research study (for a Ph.D aggregate) upon the evolution of Asahi/Pentax normal primes (optical side approach only) from the earliest Takumar to the latest Pentax FA 50/1.4.

Thanks in advance.
Try here!
Lenses

Dario has a good site regarding the Takumars.
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Old 10-11-2008, 10:03 PM   #787
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Originally Posted by bobrapp View Post
Try here!
Lenses

Dario has a good site regarding the Takumars.
For books, check here for authors Van Oosten and Cecchi.

Books

Cecchi gives a good overall view and Van Oosten a closer look at the lenses. Another good place for checking M42 lenses is:

Early Asahi Pentax Cameras and Takumar lenses: Main Page

Cheers,
Bob
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Old 10-12-2008, 03:01 AM   #788
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Pardon my recent lack of posts, lady and gents (Hi, Mel!), I have been busy of late and my unsorted/unprocessed photos are piling up on me.


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Super Takumar 85/1.9

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Old 10-12-2008, 08:39 AM   #789
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Originally Posted by bobrapp View Post
Try here!
Lenses

Dario has a good site regarding the Takumars.
No valuable info there (optical diagrams). Thanks anyway.
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Old 10-12-2008, 08:41 AM   #790
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Originally Posted by bobrapp View Post
For books, check here for authors Van Oosten and Cecchi.

Books

Cecchi gives a good overall view and Van Oosten a closer look at the lenses.
Unfortunatelly I couldn't get those book (sold out for many years) and couldn't be found here in France libraries.
Another good place for checking M42 lenses is:

Early Asahi Pentax Cameras and Takumar lenses: Main Page

Cheers,
Bob
Well-known. Info not consistent for my research.

Thanks anyway.
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Old 10-12-2008, 12:13 PM   #791
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Originally Posted by huqedato View Post
Unfortunatelly I couldn't get those book (sold out for many years) and couldn't be found here in France libraries.
Well-known. Info not consistent for my research.

Thanks anyway.
The Ultimate Asahi Pentax Screw Mount Guide
by Grejan van Oosten
is the only complete source of optical diagrams and covers lenses from 1952 to 1977. It is a lot of fun following the design path for various lenses.

Later lenses are covered in Boz's Welcome to Bojidar Dimitrov's Pentax K-Mount Page K mount site.

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Old 10-12-2008, 02:35 PM   #792
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Originally Posted by bobrapp View Post
The Ultimate Asahi Pentax Screw Mount Guide
by Grejan van Oosten
is the only complete source of optical diagrams and covers lenses from 1952 to 1977. It is a lot of fun following the design path for various lenses.
Bob Rapp
Yes, I found that already. Could you help me somehow? If you do, please PM me!
Regards.
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Old 10-12-2008, 03:08 PM   #793
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Originally Posted by Mike Cash View Post
Pardon my recent lack of posts, lady and gents (Hi, Mel!), I have been busy of late and my unsorted/unprocessed photos are piling up on me.
Why thank you for remembering me Mr. Cash sir! Here's a few from an airshow I went to yesterday. Super Tak 55-1.8



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Old 10-12-2008, 04:56 PM   #794
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Nicely done, Mel. I see you made it down to Culpepper. Wish I could have gone, but my wife had other plans for me.
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K100D l 18-55mm f/3.5-5.6 l 50mm f2 l
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Takumar l 135mm f/2.5 l 28mm f/2.8 l 55mm f/1.8 l 50mm f/1.8 l
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Old 10-12-2008, 07:55 PM   #795
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Ain't that 55 1.8 a sweeeeet lens Mel? You really nailed those shots !! The colors on these lenses just amaze me. Here are two I submitted for Pentaxium day yesterday. Super Multi Coated 200mm F4 @ f5.6

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K10D, K110D, Kit Lens, SMC-M 50 mm f1.4, RMC Tokina 28 mm f2.8, Tamron 70-300 mm LD DI, Chinar 135 mm f2.8, Vivitar 400 mm f5.6, Super Takumar 55 mm f1.8, Super Takumar 28mm f3.5, Super Multi Coated Takumar 200 mm f4, Super Takumar 35mm f3.5

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