Build quality: yuck
Filter thread: 55mm
Infrared Mark: yes
Ok, I admit it, this lens was part of an ebay deal and the first impression was super-poor: aged silver paint, loose screws, slacky barrel. I retightened the screws, cleaned the glass and tested it nevertheless. The portrait 135mm (on film) offers the same FoV as a fast 200mm would on film. Now, how large and expensive would that be?
