Thanks for your help in how to read a list message, John.
keith
John Francis wrote:
Keith Whaley mused:
Comments below...
John Francis wrote:
Peter J. Alling wrote:
This shows the hazards of jumping into a thread somewhere in the middle, this discussion was about the letter designations ie A, F, AF, FA, M, (K) on K mount lenses.
Note that - it's important.
The post by John Francis (copied below) named Takumar-A and Takumar-F, as tho' they existed.
It was that question I was addressing.
If John's question was prompted by what you say above, then it was ME that jumped into the middle of a thread and started growing a new branch!
Yes, it was.
Oh. Does that put you off? Sorry.
No - just pointing out that the original question, and my answer to it, were both in the context of K-mount lenses only. Taking any statement about Takumar lenses made there, applying it outside that context, and then finding fault with the conclusion, is rather stretching the point.
That wasn't my question, either: it was a question I was answering, originally posed by a different poster. Check the ">" indent level.
If it had any, the previous carats were lost to me.
Hardly; they were still in the post you included.
And Takumar-F lenses, at least, most definitely do exist.
NOT in screw threads. That's all I was talking about.
But that's not what everybody else is talking about.
I have one sitting here in front of me as I type; it's the 28-80 /f3.5-f4.5 zoom often sold as a (cheap) kit lens with the SF-1.
The SF-1? That's otherwise known as an SF X, and certainly a K-mount. Came out in '87 or so, as I recall.
What Takumar fits that? The "(Bayonet)" style?
"Takumar (Bayonet)", "Takumar Bayonet", "Takumar-A", and "Takumar-F"
And, it's an automatic focus? Do you have a reference for it?
<http://www.bdimitrov.de/kmp/lenses/zooms/_non-SMC/tak-F_28-80f3.5-4.5.html>
Other Takumar-F lenses (and Takumar-A, Pentax-A and Pentax-F) are detailed at
<http://www.bdimitrov.de/kmp/lenses/zooms/_non-SMC/index.html>
(there are also some "Takumar Bayonet" lenses mentioned on Boz's site)

