Compare Samyang 20mm F1.8 ED AS UMC vs Nikon PC Nikkor 19mm F4E ED vs Nikon AF-S Nikkor 28mm F1.4E ED

[[{"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":"Aperture Blades","Fv":"9 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":"Distance scale, DoF scale"},{"Ft":"Construction","Fn":"Lens Mount","Fv":"Nikon F-mount"},{"Ft":"Construction","Fn":"Optical Formula | Elements","Fv":"17 elements"},{"Ft":"Construction","Fn":"Optical Formula | Groups","Fv":"13 groups"},{"Ft":"Construction","Fn":"Optical Formula | Special Glass","Fv":"3 ED + 2 aspherical elements + fluorine \u0026amp; Nano Crystal coatings groups"},{"Ft":"Dimensions","Fn":"Size | Diameter","Fv":"89 mm / 3.50 in"},{"Ft":"Dimensions","Fn":"Size | Length","Fv":"124 mm / 4.88 in"},{"Ft":"Dimensions","Fn":"Weight","Fv":"885 g / 31.27 oz"},{"Ft":"Function","Fn":"Angle Of View","Fv":"97.5° Diagonal | 86.9° Horizontal | 64.6° Vertical"},{"Ft":"Function","Fn":"Aperture","Fv":"f/4 ~ f/32"},{"Ft":"Function","Fn":"Autofocus","Fv":"No"},{"Ft":"Function","Fn":"Focal Length","Fv":"19 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":"0.18x"},{"Ft":"Performance","Fn":"Min Focus Distance","Fv":"250 mm / 9.84 in"},{"Ft":"Production","Fn":"Debut","Fv":"2016-10-19"}],[{"Ft":"Construction","Fn":"Aperture Blades","Fv":"9 blades"},{"Ft":"Construction","Fn":"Colors","Fv":"Black"},{"Ft":"Construction","Fn":"Form Factor","Fv":"Wide-Angle Prime Lens"},{"Ft":"Construction","Fn":"Image Size","Fv":"Full-Frame"},{"Ft":"Construction","Fn":"Lens Mount","Fv":"Nikon F-mount"},{"Ft":"Construction","Fn":"Material","Fv":"Magnesium alloy"},{"Ft":"Construction","Fn":"Motor","Fv":"Ring-type ultrasonic"},{"Ft":"Construction","Fn":"Optical Formula | Elements","Fv":"14 elements"},{"Ft":"Construction","Fn":"Optical Formula | Groups","Fv":"11 groups"},{"Ft":"Construction","Fn":"Optical Formula | Special Glass","Fv":"3 aspherical + 2 ED element, Nano Crystal and fluorine coatings 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":"101 mm / 3.98 in"},{"Ft":"Dimensions","Fn":"Weight","Fv":"645 g / 22.79 oz"},{"Ft":"Function","Fn":"Angle Of View","Fv":"75.4° Diagonal | 65.5° Horizontal | 46.4° Vertical"},{"Ft":"Function","Fn":"Aperture","Fv":"f/1.4–16 ~ f/1.4–16"},{"Ft":"Function","Fn":"Autofocus","Fv":"Yes"},{"Ft":"Function","Fn":"Focal Length","Fv":"28 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":"0.17x"},{"Ft":"Performance","Fn":"Min Focus Distance","Fv":"280 mm / 11.02 in"},{"Ft":"Production","Fn":"Debut","Fv":"2017-05-31"}]]