One of the nice things about shooting with Pentax is that pretty much every lens that was made for K-mount will work on current DSLR cameras (the same can be said of M42 screw-mount with an adapter). There are probably a few exceptions, but I personally don’t know of any. This lens I’ll be looking at today is a fully manual telephoto prime lens with a large aperture. The lens has some heft to it! A lens with specifications like this would cost hundreds of dollars if it had auto-focus and current-day lens coating. The reality is that it’s a bargain bin lens that can be had for probably around $50. I had bought this lens quite a few years ago from keh.com expecting a “generic 135mm f2.8” lens, and that’s what I got. From what I can tell, Focal was a brand-name for K-mart or Sears and MC stands for multi-coating. Technical specifications for the lens: Lens Mount: K-mount Lens Construction: black metal with rubberized focus ring Angle of View: 18 degrees (11 degrees in APS-C) Apert...
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