Compare Samyang 20mm F1.8 ED AS UMC vs Zeiss Biogon T* 2.8/25 ZM vs Zeiss C Sonnar T* 1.5/50 ZM

[[{"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":"Silver or black"},{"Ft":"Construction","Fn":"Form Factor","Fv":"Wide-Angle 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":"Leica M-mount"},{"Ft":"Construction","Fn":"Material","Fv":"metal barrel, metal mount"},{"Ft":"Construction","Fn":"Optical Formula | Elements","Fv":"9 elements"},{"Ft":"Construction","Fn":"Optical Formula | Groups","Fv":"7 groups"},{"Ft":"Dimensions","Fn":"Filter Diameter","Fv":"46 mm / 1.81 in"},{"Ft":"Dimensions","Fn":"Size | Diameter","Fv":"53 mm / 2.09 in"},{"Ft":"Dimensions","Fn":"Size | Length","Fv":"71 mm / 2.80 in"},{"Ft":"Dimensions","Fn":"Weight","Fv":"260 g / 9.19 oz"},{"Ft":"Function","Fn":"Angle Of View","Fv":"81.8° Diagonal | 71.5° Horizontal | 51.3° Vertical"},{"Ft":"Function","Fn":"Aperture","Fv":"f/2.8 ~ f/22"},{"Ft":"Function","Fn":"Autofocus","Fv":"No"},{"Ft":"Function","Fn":"Focal Length","Fv":"25 mm"},{"Ft":"Function","Fn":"Image Stabilization","Fv":"No"},{"Ft":"Performance","Fn":"Max Magnification","Fv":"0.056"},{"Ft":"Performance","Fn":"Min Focus Distance","Fv":"500 mm / 19.69 in"}],[{"Ft":"Construction","Fn":"Colors","Fv":"Silver or 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":"Leica M-mount"},{"Ft":"Construction","Fn":"Material","Fv":"metal barrel, metal 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":"46 mm / 1.81 in"},{"Ft":"Dimensions","Fn":"Size | Diameter","Fv":"56 mm / 2.20 in"},{"Ft":"Dimensions","Fn":"Size | Length","Fv":"63 mm / 2.48 in"},{"Ft":"Dimensions","Fn":"Weight","Fv":"350 g / 12.37 oz"},{"Ft":"Function","Fn":"Angle Of View","Fv":"46.8° Diagonal | 39.6° Horizontal | 27.0° Vertical"},{"Ft":"Function","Fn":"Aperture","Fv":"f/1.5 ~ f/16"},{"Ft":"Function","Fn":"Autofocus","Fv":"No"},{"Ft":"Function","Fn":"Focal Length","Fv":"50 mm"},{"Ft":"Function","Fn":"Image Stabilization","Fv":"No"},{"Ft":"Performance","Fn":"Max Magnification","Fv":"0.067"},{"Ft":"Performance","Fn":"Min Focus Distance","Fv":"900 mm / 35.43 in"}]]