I just traded an old iMac with some screen issues for a bag of old lenses. For K-mount and OM mount. I have an OM to NEX adapter. I'll have to get a K-mount adapter, but I also have an ME Super, so that's OK, too. OM: OM 50mm 1.8, but the aperture ring is a little wiggly Soliger brand 2X teleconverter for OM JC Penny brand 28mm 2.8, but the aperture blades don't work. So that'll be a fun project. Crazy close focus and nice bokeh though. K-Mount 135 2.5 Takumar. Feels like a very nice lens. I'll have to research it a bit. This lens here: Takumar 135mm F2.5 Bayonet Reviews - Non-SMC Pentax Prime Lenses - Pentax Lens Reviews & Lens Database Pentax 50mm 1.7. I'll try this against my 50mm 2.0 edit: drat: just noticed there's some minimal fungus Well now I have a cleaning job to do! Makinon 28mm 2.8. with a 52mm screw-in rubber hood. A couple of lens cases and a nice sized lens box. The computer was probably worth $100-150, so I think it was a fair trade. I'm going to keep old lenses I come across, because I think a FF interchangeable mirrorless is not that far away, and the 28s will be fun to play with, as will a 135/2.5.
Yep, the Pentax 1.7 is very well regarded, especially for sharpness I heard. NO doubt in my mind FF Nex is very, very close...
Congrats and have fun experimenting with your new lenses. The good thing is you can keep the ones you like and sell the ones you don't.
I have the 135/2.5. It works well if you can keep direct light off the front element or it flairs. It's also prone to purple fringing wide open, but stopped down a stop or two it's fine.
