Went to pick up a new camera bag and a lens followed me home as well. It's and old Sears 135mm f/2.8 Macro. I couldn't pass it up for $15 US. The excuse for the wife is that the new bag had an extra lens hole than needed filling.
It's not bad. It's not as sharp as others and it seems to have an issue with purple fringing, but there is nothing to complain about for what it cost. Another plus is that it's manual. It if forcing me to learn and get better with manual focus. Last thing is that this thing is heavy.
Here's a couple of my first attempts with the new toy.