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06-21-2010, 08:54 PM   #1
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SMC Pentax A lenses on K-7?

I have a 120 mm Macro Pentax A, and a 35 mm Pentax A for my 645 camera and I'm considering getting a K-7. I suspect these lenses wouldn't fit a K-7, but is there some way they can be adapted to use on the K-7? I'm assuming these lenses are not weather sealed, so would loose that functionality. I love that 120 mm Macro and am saving my pennies for a 645D some day.

06-22-2010, 01:45 AM   #2
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With the Pentax 645 to K adapter they will fit on the K-7, but the A-function is lost, and if your lenses are FA, autofocus is lost as well. They will feel heavy, certainly the 120mm, but the 645 A 35mm, which I tried on the K-x, blows most small format lenses out of the water and the 120mm has been reported to have similar outstanding results on Pdigital. Obviously, I certainly did not try all of them! I don't expect to do it often myself.
You are assuming these lenses are not sealed ? Almost sounds like you do not have them yet.
06-22-2010, 02:37 AM   #3
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check out our lens database to see the adapter is needed- it'll be in the 645 section: Pentax Lens Review Database - Lens Listings

If you're willing to carry the extra weight, you won't be disappointed optically!
06-22-2010, 06:19 AM   #4
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QuoteOriginally posted by Callamp Quote
I have a 120 mm Macro Pentax A, and a 35 mm Pentax A for my 645 camera and I'm considering getting a K-7. I suspect these lenses wouldn't fit a K-7, but is there some way they can be adapted to use on the K-7? I'm assuming these lenses are not weather sealed, so would loose that functionality. I love that 120 mm Macro and am saving my pennies for a 645D some day.
Hello,

I am sorry, we no longer carry the 645 adapter.
Pentax - 645 Lens to Pentax 35mm K-Mount Body Adapter - 38455 -


I did find this Owners Manual from Pentax in a PDF. I hope it helps.
http://www.pentaximaging.com/files/manual/645_Adapter_K_for_Lenses.pdf


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