Telephoto lens series samyang vdslr samyang umc lens mount canon ef m lens speed 22 focal length 135 mm suitable for sensor type aps c construction prime lens area of use portrait photography night photography animal photography videography focus manual focus circular aperture diagonal angle of view 11 7 closest focusing distance 80 cm focal length equivalent to 35mm camera 216 mm lens type ed lens construction groupselements 711 number of ap