Thrift/antique stores are a place to look for old lenses on the cheap. If you've got a C-mount adapter for your sensor you can mount the lens on it. Then you ca

Thrift/antique stores are a place to look for old lenses on the cheap. If you've got a C-mount adapter for your sensor you can mount the lens on it. Then you can manually focus it and epoxy it on the right point.