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I am looking at using my Tamron AD2 lenses on a Pentax 1st DSLR to try out digital.I assume that my Tamron PK Mount will work on these cameras in but in manual mode.I]Apologies for my ignorance,any comments
would be much appreciated.
there is an Adaptall to Pentax K, more precisely KA adapter that includes electrical contacts and which makes the lens function just like a Pentax A lens, that is aperture can be chosen on the camera, automatic exposure modes = A,S,P asf. modes working as with any modern lens, focus is manual.
Be sure to watch out for the Ricoh adapt-all mounts. They have the little Ricoh pin which I've heard can be problematic on real Pentax cameras. All of my AD-2 gear gets used with a Pentax>Canon adapter so it's not a problem and I can buy the usually cheaper Ricoh adapter.