Mount: Tamron Adaptall, Auto/Manual
Build quality: almost good (Zoom barrel is loose on my copy)
Filter thread: 62mm
Infrared Mark: yes
Push zoom, front element does not turn when zooming, but when focussing. Nice Macro of 1:2 without any tubes. Tamron Adaptall allows use of this manual focus lens with most cameras. On the Pentax *ist DS, it works as an M or A lens, depending on the adapter you use.
For some boring brick wall test images, look here.