So my girlfriend called me this weekend saying she found a bunch of old lenses in a thrift shop. I asked her what they were, and turns out they were a Takumar 135mm 3.5, an Auto-Takumar 35mm 3.5, and an SMC Pentax 50 1.7. All for $10. They were in a pretty fowl camera bag, and they all have fungus in them. Any tips on cleaning them up? I probably won't use them for any serious work unless I can get the immaculately clean. I have asked a few repair folks on the web and they all said it would take around 6 hours per lens and would cost anywhere from $100-200 per lens. That seems much more than I am willing to pay for these old lenses. Is this commensurate with your experiences? Thanks!