It was $180 plus shipping, Camaro extra ;). Just finished a short nature walk. A monopod would be helpful with this beast. It does have a swiveling tripod mount, it and all the focus and aperture markings are out of sight in the picture. Problem with screw mount lenses they do not always end up right side up on the camera. Will have to try shimming the adaptor to see if I can get it right side up and still have infinity focus. I sanded this adaptor down for another lens and it might be a bit thin for this lens.