Hi !
I'm writing from Italy, so please excuse me for my English, so far to be perfect.
I've got NO Pentax cameras nor lenses and I usually visit this forum to look at the Tamron Adaptall-2 section....
I own a Leica R8 reflex camera with DMR ( Digital Modul R , a digital 10 Mpx. digital back for Leica R8 and R9 cameras ) which delivers very good files @ 100 Iso, quite good ones @ 200 and 400 Iso and not so good @ 800 and 1600 Iso; its crop factor is 1,37 X.
I usually post on the italian Leica forum ( LEICAPASSION ), but in that place there is small room for discussion about Tamron Adaptall-2 lenses, while in this one there is a living thread about.
I often use Tamron's lenses on my R8 camera, because they are usually zooms, more usable than Leica primes for everyday shooting: sometimes I found Adaptall-2 lenses comparable to Leica ones ( expecially at medium openings, around f8, for faster usage Leica lenses are better ), so I have grow-up a small Tamron Adaptall-2 SP lens collection, about a dozen of pieces...
.
I hope that this forum mantains one of the better Tamron Adaptall-2 sections on the web, a noticeable resource for that very good manual focus lenses, but it is a Pentax Forum, so I don't know if I can post photos in that section.
I thing I'll stay in the shade in the future....
Bye.
Velocina