These lenses have been modified to have anamorphic bokeh, and flares. They have a very cinematic look and are very close to the real thing. It is the best bang for your buck. The f stops are approximate. They are EF mount and each has a 72mm front diameter. They have a look like the older Kowa, Lomo and Century optics. Included in a hard case, you can pick four of the following: 20mm f4 28mm f4 37mm f4 58mm f2.8 85mm f2.8 135mm f4