Compare Samyang 20mm F1.8 ED AS UMC vs Zeiss Loxia 50mm F2 Planar vs Zeiss Loxia 21mm F2.8 Distagon

[[{"Ft":"Construction","Fn":"Aperture Blades","Fv":"7 blades"},{"Ft":"Construction","Fn":"Form Factor","Fv":"Ultra Wide-Angle Prime Lens"},{"Ft":"Construction","Fn":"Image Size","Fv":"Full-Frame"},{"Ft":"Construction","Fn":"Lens Barrel","Fv":"Physical aperture ring, Distance scale"},{"Ft":"Construction","Fn":"Lens Mount","Fv":"Canon EF-mount, Canon EF-M-mount, Fujifilm X-mount, Micro Four Thirds-mount, Nikon F-mount, Pentax K-mount, Samsung NX-mount, Sony A-mount, Sony E-mount"},{"Ft":"Construction","Fn":"Optical Formula | Elements","Fv":"13 elements"},{"Ft":"Construction","Fn":"Optical Formula | Groups","Fv":"12 groups"},{"Ft":"Construction","Fn":"Optical Formula | Special Glass","Fv":"Two aspherical + 3 ED elements, Ultra Multi Coating groups"},{"Ft":"Dimensions","Fn":"Filter Diameter","Fv":"77 mm / 3.03 in"},{"Ft":"Dimensions","Fn":"Size | Diameter","Fv":"83 mm / 3.27 in"},{"Ft":"Dimensions","Fn":"Size | Length","Fv":"88 mm / 3.46 in"},{"Ft":"Dimensions","Fn":"Weight","Fv":"497 g / 17.56 oz"},{"Ft":"Function","Fn":"Angle Of View","Fv":"94.5° Diagonal | 84.0° Horizontal | 61.9° Vertical"},{"Ft":"Function","Fn":"Aperture","Fv":"f/1.8 ~ f/22"},{"Ft":"Function","Fn":"Autofocus","Fv":"No"},{"Ft":"Function","Fn":"Focal Length","Fv":"20 mm"},{"Ft":"Function","Fn":"Focus Type","Fv":"Internal"},{"Ft":"Function","Fn":"Image Stabilization","Fv":"No"},{"Ft":"Function","Fn":"Weather Resistance","Fv":"No"},{"Ft":"Performance","Fn":"Min Focus Distance","Fv":"200 mm / 7.87 in"},{"Ft":"Production","Fn":"Accessory","Fv":"Lens hood included"},{"Ft":"Production","Fn":"Debut","Fv":"2016-08-08"}],[{"Ft":"Construction","Fn":"Colors","Fv":"Black"},{"Ft":"Construction","Fn":"Form Factor","Fv":"Normal Prime Lens"},{"Ft":"Construction","Fn":"Image Size","Fv":"Full-Frame"},{"Ft":"Construction","Fn":"Lens Barrel","Fv":"Physical aperture ring, Distance scale, DoF scale"},{"Ft":"Construction","Fn":"Lens Mount","Fv":"Sony E-mount"},{"Ft":"Construction","Fn":"Optical Formula | Elements","Fv":"6 elements"},{"Ft":"Construction","Fn":"Optical Formula | Groups","Fv":"4 groups"},{"Ft":"Dimensions","Fn":"Filter Diameter","Fv":"52 mm / 2.05 in"},{"Ft":"Dimensions","Fn":"Size | Diameter","Fv":"62 mm / 2.44 in"},{"Ft":"Dimensions","Fn":"Size | Length","Fv":"66 mm / 2.60 in"},{"Ft":"Dimensions","Fn":"Weight","Fv":"320 g / 11.31 oz"},{"Ft":"Function","Fn":"Angle Of View","Fv":"46.8° Diagonal | 39.6° Horizontal | 27.0° Vertical"},{"Ft":"Function","Fn":"Aperture","Fv":"f/2 ~ f/22"},{"Ft":"Function","Fn":"Focal Length","Fv":"50 mm"},{"Ft":"Function","Fn":"Image Stabilization","Fv":"No"},{"Ft":"Function","Fn":"Weather Resistance","Fv":"No"},{"Ft":"Performance","Fn":"Min Focus Distance","Fv":"450 mm / 17.72 in"},{"Ft":"Production","Fn":"Accessory","Fv":"Lens hood included"},{"Ft":"Production","Fn":"Debut","Fv":"2014-09-03"},{"Ft":"Production","Fn":"Made In","Fv":"Japan"}],[{"Ft":"Construction","Fn":"Colors","Fv":"Black"},{"Ft":"Construction","Fn":"Form Factor","Fv":"Ultra Wide-Angle Prime Lens"},{"Ft":"Construction","Fn":"Image Size","Fv":"Full-Frame"},{"Ft":"Construction","Fn":"Lens Barrel","Fv":"Physical aperture ring, Distance scale"},{"Ft":"Construction","Fn":"Lens Mount","Fv":"Sony E-mount"},{"Ft":"Construction","Fn":"Material","Fv":"Metal"},{"Ft":"Construction","Fn":"Optical Formula | Elements","Fv":"11 elements"},{"Ft":"Construction","Fn":"Optical Formula | Groups","Fv":"9 groups"},{"Ft":"Dimensions","Fn":"Filter Diameter","Fv":"52 mm / 2.05 in"},{"Ft":"Dimensions","Fn":"Size | Diameter","Fv":"62 mm / 2.44 in"},{"Ft":"Dimensions","Fn":"Size | Length","Fv":"72 mm / 2.83 in"},{"Ft":"Dimensions","Fn":"Weight","Fv":"394 g / 13.92 oz"},{"Ft":"Function","Fn":"Angle Of View","Fv":"91.7° Diagonal | 81.2° Horizontal | 59.5° Vertical"},{"Ft":"Function","Fn":"Aperture","Fv":"f/2.8 ~ f/22"},{"Ft":"Function","Fn":"Autofocus","Fv":"No"},{"Ft":"Function","Fn":"Focal Length","Fv":"21 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":"Max Magnification","Fv":"0.13"},{"Ft":"Performance","Fn":"Min Focus Distance","Fv":"250 mm / 9.84 in"},{"Ft":"Production","Fn":"Debut","Fv":"2015-10-12"},{"Ft":"Production","Fn":"Made In","Fv":"Japan"}]]