Looking for a good 135mm lens some time ago, I ended up with a CZJ 4/135 after reading several good reviews of it (from what I can tell - they're all true). I've got it in EXA mount for under $20 with shipping (in M42 it's price is 2x of that). The EXA adapter threw me back another $25 though, so now I am wondering how to return this investment by getting more "EXA discounts". Can anyone recommend good value inexpensive ($20-30) lenses in EXA mount? Pretty much any FL apart from 135 will be interesting to hear about. So far I've found Meyer Optik Oreston 50/1.8 (which later got better coating and became Pentacon 50/1.8) and looking into getting one. I have a "long nose" Nikkor 50/1.8 AIS, which is sharp from f2.8 and produces great images, but I find it a bit too long, too heavy, and its focusing in opposite direction compared to other lenses confusing if not irritating. The Oreston got on the radar as a potential replacement for the nikkor.