Tamron SP AF compatible?

I've seen a Tamron SP300mm F2 (2.8?)lens but it takes an Adaptall mount.

I was going to start looking for a K-AF Adaptall mount (for use with my MZ5N) but I think I read somewhere that SP lenses even with the correct AF mount won't autofocus. Is this correct?

Many thanks in advance for help

I dont think there is such thing as a auto focus mount for the Adaptall 2 lenses. There are PK/A, PK (also labelled PK/M) and screw mounts from what I can remember.

I agree with Mike.
As far as I know, all Tamron Adaptall and Adaptall 2 mounts and lenses are Manual Focus only.

Agree with Mile-P and grahamwalton Adaptall mounts and lenses are manual focus only.