Tokina Opera 50mm F1.4

[{"Ft":"Construction","Fn":"Aperture Blades","Fv":"9 blades"},{"Ft":"Construction","Fn":"Form Factor","Fv":"Normal Prime Lens"},{"Ft":"Construction","Fn":"Image Size","Fv":"Full-Frame"},{"Ft":"Construction","Fn":"Lens Barrel","Fv":"Distance scale"},{"Ft":"Construction","Fn":"Lens Mount","Fv":"Canon EF-mount, Nikon F-mount"},{"Ft":"Construction","Fn":"Motor","Fv":"Ring-type ultrasonic"},{"Ft":"Construction","Fn":"Optical Formula | Elements","Fv":"15 elements"},{"Ft":"Construction","Fn":"Optical Formula | Groups","Fv":"9 groups"},{"Ft":"Construction","Fn":"Optical Formula | Special Glass","Fv":"Aspherical + low-dispersion elements, ELR coating groups"},{"Ft":"Dimensions","Fn":"Filter Diameter","Fv":"72 mm / 2.83 in"},{"Ft":"Dimensions","Fn":"Size | Diameter","Fv":"80 mm / 3.15 in"},{"Ft":"Dimensions","Fn":"Size | Length","Fv":"108 mm / 4.25 in"},{"Ft":"Dimensions","Fn":"Weight","Fv":"950 g / 33.57 oz"},{"Ft":"Function","Fn":"Angle Of View","Fv":"46.8° Diagonal | 39.6° Horizontal | 27.0° Vertical"},{"Ft":"Function","Fn":"Aperture","Fv":"f/1.4 ~ f/16"},{"Ft":"Function","Fn":"Autofocus","Fv":"Yes"},{"Ft":"Function","Fn":"Focal Length","Fv":"50 mm"},{"Ft":"Function","Fn":"Focus Type","Fv":"Internal"},{"Ft":"Function","Fn":"Image Stabilization","Fv":"No"},{"Ft":"Function","Fn":"Weather Resistance","Fv":"Yes"},{"Ft":"Performance","Fn":"Min Focus Distance","Fv":"400 mm / 15.75 in"},{"Ft":"Production","Fn":"Accessory","Fv":"Lens hood included"},{"Ft":"Production","Fn":"Debut","Fv":"2018-02-28"}]