Lens Not Attached : MANUAL LENS need you to enable "M mode " or "Release without lens" in the setting of camera Minimum focusing distance of 0.6m, Full-frame Visual angle:diagonal 46.9° horizontal 39.3° vertical 26.4°; APS-C Visual angle:diagonal 33.1° horizontal 25.8° vertical 17.4° Minimum focusing distance of 0.6m, Full-frame Visual angle:diagonal 46.9° horizontal 39.3° vertical 26.4°; APS-C Visual angle:diagonal 33.1° horizontal 25.8° vertical 17.4° The focus ring is very well damped, good amount of travel, easy to focus Built very well and feels solid, aperture blades quite impressive MEKE 50mm F1.2 Large Aperture Manual Focus Full Frame Lens compatible with EF-Mount cameras