Soligor 1.33x anamorphic lens is a very good reputation one with moderate size, made in Japan, a very light weight(127g) lens can be used in auto focus. Rear mount thread is 52mm. Come with original both cap, 37-49-52 step up ring, lens bag and box as pictures. On full frame camera, IMO, the widest taking lens without vignette is 35mm f/2 I used. The 40mm and 50mm lenses are optimal prime lenses for use. Please see sample pictures and
Youtube videos(please set to 1080p to watch) taken with this lens for reference.
youtube.com/watch?v=2Bc1gkxe5H0
youtube.com/watch?v=WrJMGXomcVo
youtube.com/watch?v=xMwg9AlGg-E