Originally Posted by ddhytz
I initially thought it was for any old, non-Pentax lens and Tamron 28/2.5 (adap2) was old enough to be a member, as it has been hardly mentioned here, looks like I got it wrong.
Well, we have to resign now. Please don't issue Infringement Notice.

No mate, it was for off-brand lenses. Tamron, Sigma and Tokina are major 3rd party manufacturers.
