Image Format:Full-frame / 35mm film Lens Mount:M42 Aperture Ring:Yes Diaphragm:Automatic, 6 blades Optics:4 elements, 4 group Mount Variant:M42 Stop-down Pin Max. Aperture:F3.5 Min. Aperture:F22 Focusing:Manual Min. Focus:150 cm Max. Magnification:0.11x Filter Size:49 mm Internal Focus:No Field of View (Diag. / Horiz.):APS-C: 12 ° / 10 °,Full frame: 18 ° / 15 ° Hood:Metal hood Case:Dedicated hard case Diam x Length:59.5 x 87.5 mm Weight:343 g Production Years:1965 to 1971 Engraved Name:Super-Takumar 1:3.5/135 Variants: 1: Takumar 135mm F3.5, chrome and black, close focus 200 cm 2: Auto-Takumar 135mm F3.5 3: Takumar 135mm F3.5, all black, close focus 150 cm 4: Super-Takumar 135mm F3.5, model 1, same 5 element optics as the predecessors 5: Super-Takumar 135mm F3.5, model 2, 4 element optical design (this lens) 6: Super-Multi-Coated Takumar 135mm F3.5, same 4 element optical design as the latest Super-Takumar