500mm M42 Pentax Manual Lens

[P. J. Alling]

There are three different versions that I know of, the f4.5 Takumar and 
SMC Takumar 4.5 which I think are identical in optical formula to the K 
4.5.  Either of those should be very good.  The SMC version would be the 
best of course.  The other is an old 2 element 1 group design at f5.0  
That one strikes me more as a collectors item than a usable lens for a 
modern camera, (then again I still use a 12mm T mount fisheye with 
Waterhouse stops on my *ist-D and Ds so maybe the f5.o would be fun to 
use. As to value I haven't got a clue but there are several on ebay 
right now, prices running from about $100, to $400.  .  Even the K 
version has a manual diaphragm so functionally the M42 lens is identical 
to the K.

Walter Hamler wrote:
> What would one of these be worth in pretty decent shape and are they any 
> good?
>
> Walt 
>
>
>   


-- 
The difference between Microsoft and 'Jurassic Park':
In one, a mad businessman makes a lot of money with beasts that should be extinct.
The other is a film.
  -- Unattributed