Compare Samyang 12mm F2.8 ED AS NCS Fisheye vs Pentax HD Pentax-DA Fisheye 10-17mm F3.5-4.5 ED vs Pentax HD Pentax-D FA* 70-200mm F2.8ED DC AW

[[{"Ft":"Construction","Fn":"Aperture Blades","Fv":"7 blades, Circular blades"},{"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":"Canon EF-mount, Nikon F-mount, Pentax K-mount, Sony A-mount, Sony E-mount"},{"Ft":"Construction","Fn":"Optical Formula | Elements","Fv":"12 elements"},{"Ft":"Construction","Fn":"Optical Formula | Groups","Fv":"8 groups"},{"Ft":"Construction","Fn":"Optical Formula | Special Glass","Fv":"2 aspherical, 3 ED, nano coating system groups"},{"Ft":"Dimensions","Fn":"Size | Diameter","Fv":"77 mm / 3.03 in"},{"Ft":"Dimensions","Fn":"Size | Length","Fv":"73 mm / 2.87 in"},{"Ft":"Dimensions","Fn":"Weight","Fv":"515 g / 18.20 oz"},{"Ft":"Function","Fn":"Angle Of View","Fv":"180° Diagonal (fisheye)"},{"Ft":"Function","Fn":"Aperture","Fv":"f/2.8 ~ f/22"},{"Ft":"Function","Fn":"Autofocus","Fv":"No"},{"Ft":"Function","Fn":"Focal Length","Fv":"12 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":"2014-11-01"}],[{"Ft":"Construction","Fn":"Aperture Blades","Fv":"6 blades"},{"Ft":"Construction","Fn":"Colors","Fv":"Black"},{"Ft":"Construction","Fn":"Form Factor","Fv":"Ultra Wide-Angle Zoom Lens"},{"Ft":"Construction","Fn":"Image Size","Fv":"APS-C"},{"Ft":"Construction","Fn":"Lens Barrel","Fv":"Distance scale"},{"Ft":"Construction","Fn":"Lens Mount","Fv":"Pentax K-mount"},{"Ft":"Construction","Fn":"Motor","Fv":"Screw drive from camera"},{"Ft":"Construction","Fn":"Optical Formula | Elements","Fv":"10 elements"},{"Ft":"Construction","Fn":"Optical Formula | Groups","Fv":"8 groups"},{"Ft":"Construction","Fn":"Optical Formula | Special Glass","Fv":"ED element, HD + Super Protective coatings groups"},{"Ft":"Dimensions","Fn":"Size | Diameter","Fv":"68 mm / 2.68 in"},{"Ft":"Dimensions","Fn":"Size | Length","Fv":"70 mm / 2.76 in"},{"Ft":"Dimensions","Fn":"Weight","Fv":"317 g / 11.20 oz"},{"Ft":"Function","Fn":"Angle Of View","Fv":"180° Diagonal (wide) ~ 100° Diagonal"},{"Ft":"Function","Fn":"Aperture","Fv":"f/3.5–4.5 ~ f/22–32"},{"Ft":"Function","Fn":"Autofocus","Fv":"Yes"},{"Ft":"Function","Fn":"Crop Factor","Fv":"1.5"},{"Ft":"Function","Fn":"Focal Length","Fv":"10 mm ~ 17 mm"},{"Ft":"Function","Fn":"Focal Length (35mm Equivalent)","Fv":"15.0 mm ~ 25.5 mm"},{"Ft":"Function","Fn":"Focus Type","Fv":"Internal"},{"Ft":"Function","Fn":"Weather Resistance","Fv":"No"},{"Ft":"Function","Fn":"Zoom Type","Fv":"External zoom"},{"Ft":"Performance","Fn":"Max Magnification","Fv":"0.39x"},{"Ft":"Performance","Fn":"Min Focus Distance","Fv":"140 mm / 5.51 in"},{"Ft":"Production","Fn":"Accessory","Fv":"Lens hood included"},{"Ft":"Production","Fn":"Debut","Fv":"2019-07-08"}],[{"Ft":"Construction","Fn":"Aperture Blades","Fv":"9 blades, Rounded (f/2.8-5.6)"},{"Ft":"Construction","Fn":"Colors","Fv":"Black or Silver"},{"Ft":"Construction","Fn":"Form Factor","Fv":"Telephoto Zoom Lens"},{"Ft":"Construction","Fn":"Image Size","Fv":"Full-Frame"},{"Ft":"Construction","Fn":"Lens Barrel","Fv":"Focus limiter, Tripod collar, Distance scale"},{"Ft":"Construction","Fn":"Lens Mount","Fv":"Pentax K-mount"},{"Ft":"Construction","Fn":"Optical Formula | Elements","Fv":"19 elements"},{"Ft":"Construction","Fn":"Optical Formula | Groups","Fv":"16 groups"},{"Ft":"Construction","Fn":"Optical Formula | Special Glass","Fv":"HD, AB, Super Protect coatings groups"},{"Ft":"Dimensions","Fn":"Filter Diameter","Fv":"77 mm / 3.03 in"},{"Ft":"Dimensions","Fn":"Size | Diameter","Fv":"92 mm / 3.62 in"},{"Ft":"Dimensions","Fn":"Size | Length","Fv":"203 mm / 7.99 in"},{"Ft":"Dimensions","Fn":"Weight","Fv":"1755 g / 62.01 oz"},{"Ft":"Function","Fn":"Angle Of View","Fv":"34.4° Diagonal | 28.8° Horizontal | 19.5° Vertical (wide) ~ 12.4° Diagonal | 10.3° Horizontal | 6.9° Vertical (tele)"},{"Ft":"Function","Fn":"Aperture","Fv":"f/2.8 ~ f/22"},{"Ft":"Function","Fn":"Autofocus","Fv":"Yes"},{"Ft":"Function","Fn":"Focal Length","Fv":"70 mm ~ 200 mm"},{"Ft":"Function","Fn":"Focus Type","Fv":"Internal"},{"Ft":"Function","Fn":"Image Stabilization","Fv":"No"},{"Ft":"Function","Fn":"Weather Resistance","Fv":"Yes"},{"Ft":"Function","Fn":"Zoom Type","Fv":"External zoom (zoom lock available)"},{"Ft":"Performance","Fn":"Max Magnification","Fv":"0.13x"},{"Ft":"Performance","Fn":"Min Focus Distance","Fv":"1200 mm / 47.24 in"},{"Ft":"Production","Fn":"Accessory","Fv":"Lens Hood: PH-RBM77 (supplied)"},{"Ft":"Production","Fn":"Debut","Fv":"2015-02-04"}]]