adaptall 2 PKA
A PK adaptor will at least allow you to compose with the lens wide open, even if you need to use stop-down metering.
This may be your cheapest option.

I have no idea how your lens would compare to your M200/4, but I'm sure John will be along in a moment to extol the unequivocal superiority of Pentax optics.

Dan
K-3, a macro lens and a DA*300mm...



Amazingly, the PKA adaptor can run to £50+ on ebay, which could be almost as much as a DA 50 -200.
Not sure of the quality of this version of the Tamron zoom - generally, the SP versions are the best of the Adaptall range.
Amazingly, the PKA adaptor can run to £50+ on ebay, which could be almost as much as a DA 50 -200.
Thought I did quite well with THIS yesterday, the lens is nowhere as good as my SP 70-210mm f3.5 but worth it for the mount alone.
My 2 most used lenses are Adaptall 2 mount - 90mm f2.8 and SP 70-210mm f3.5. Had my 35-80mm f2.8 lasted more than 2 minutes it would probably be all 3 in my bag and not much else.
. My Flickr

Camera:|K-7|
Pentax Lenses:|DA12-24/f4 ED AL|DA35Ltd Macro|FA31Ltd|FA77Ltd|FA50/1.4|F70-210|FA20-35 f4/AL|A*200/f4 Macro ED|A50/1.7|A50 Macro f2.8|1.7xAF adapter|
Voigtlander|125/f2.5SL Macro APO Lanthar|
Sigma Lenses:|EX DG 100-300 f4|2X & 1.4X TC|
Flashes:|AF540FGZx2|RingFlash AF160FC|
It seems to be a good lens, I imagine it would exhibit much less softness wide open on a K10D as the edges would be cropped out? is that right?
Anyway, I'll hold out for a 'proper' adapter.
The SMC M 200 is an exquisite lens (by my standards) but it is often not in my bag because I can't carry everything, so I wondered if the zoom might help out.
The Tamron 70-300 is simply never in my bag despite being really versatile. I'm not entirely sure why, it's been such a long time - I've forgotten, but I think I kept coming home disappointed.
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Darkmunk
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Plymouth, UK
And I think it's about time I tried it out.
Will this adapter do the trick?
It says nothing about infinity focus etc. is there anything I need to look out for in adapters?
I bought the smc m200 1:4 shortly after and never got round to trying the Tamron, should I bother? It would be nice to have a better zoom than my modern Tamron 70-300.
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