Hi Dave,
>Dave Weiss writes:
>
>>I recently purchased a 300f4.0 (k) lens from KEH.
>Maybe it is of high quality then.
>Perhaps the two extra lenses that were added compared to the
>5-5 design of the smc tak were added to correct some
aberrations?
That would be my guess.
>I did order the ultimate pentax
>screwmount guide from pacific rim camera, but it has not
arrived
>as yet. Is that where you got this information?
Now one more book on my list to look for....but the info on the
Super-Takumar which includes element diagrams comes from the
"Spotmatic II Operating Manual". The Super-Multi-Coated Takumar
info is from brochure P1009 11/73 titled "Honeywell Pentax
Cameras, Lenses, and Accessories". A later "Takumar
Interchangeable Lenses Operating Manual" with similar info
refers to the lenses as SMC Takumars. The Focal Press "Asahi
Pentax Guide" has some (mostly accurate) info on older Takumars.
On the web, PDML's own Dario Bonazza has info at:
http://digilander.iol.it/aohc/tak05e.htm and Peter Jonkman's has
some at:
http://www.telekabel.nl/sprinter/pjonkman/lenses2.htm
I'd be interseted in finding out the weight of your lens when/if
it's possible to weigh it. The K-mount "SMC Pentax Lenses
Brochure" lists the weight at 942 grams and Boz's page lists it
at 1020; all other specs the same.
Mark Rofini
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