Pentax HD Pentax-DA 20-40mm F2.8-4 ED Limited DC WR

[{"Ft":"Construction","Fn":"Aperture Blades","Fv":"9 blades, Rounded aperture"},{"Ft":"Construction","Fn":"Colors","Fv":"Black, silver"},{"Ft":"Construction","Fn":"Form Factor","Fv":"Standard Zoom Lens"},{"Ft":"Construction","Fn":"Image Size","Fv":"APS-C"},{"Ft":"Construction","Fn":"Lens Barrel","Fv":"Distance scale, DoF scale"},{"Ft":"Construction","Fn":"Lens Mount","Fv":"Pentax K-mount"},{"Ft":"Construction","Fn":"Material","Fv":"Aluminium barrel"},{"Ft":"Construction","Fn":"Motor","Fv":"Micromotor"},{"Ft":"Construction","Fn":"Optical Formula | Elements","Fv":"9 elements"},{"Ft":"Construction","Fn":"Optical Formula | Groups","Fv":"8 groups"},{"Ft":"Construction","Fn":"Optical Formula | Special Glass","Fv":"1 ED glass element, 1 SLD glass element, HD coating groups"},{"Ft":"Dimensions","Fn":"Filter Diameter","Fv":"55 mm / 2.17 in"},{"Ft":"Dimensions","Fn":"Size | Diameter","Fv":"71 mm / 2.80 in"},{"Ft":"Dimensions","Fn":"Size | Length","Fv":"69 mm / 2.72 in"},{"Ft":"Dimensions","Fn":"Weight","Fv":"283 g / 10.00 oz"},{"Ft":"Function","Fn":"Angle Of View","Fv":"71.6° Diagonal | 61.9° Horizontal | 43.6° Vertical (wide) ~ 39.7° Diagonal | 33.4° Horizontal | 22.6° Vertical (tele)"},{"Ft":"Function","Fn":"Aperture","Fv":"f/2.8–4 ~ f/22–32"},{"Ft":"Function","Fn":"Autofocus","Fv":"Yes"},{"Ft":"Function","Fn":"Crop Factor","Fv":"1.5"},{"Ft":"Function","Fn":"Focal Length","Fv":"20 mm ~ 40 mm"},{"Ft":"Function","Fn":"Focal Length (35mm Equivalent)","Fv":"30.0 mm ~ 60.0 mm"},{"Ft":"Function","Fn":"Image Stabilization","Fv":"No"},{"Ft":"Function","Fn":"Weather Resistance","Fv":"Yes"},{"Ft":"Function","Fn":"Zoom Type","Fv":"External zoom"},{"Ft":"Performance","Fn":"Max Magnification","Fv":"0.2x"},{"Ft":"Performance","Fn":"Min Focus Distance","Fv":"280 mm / 11.02 in"},{"Ft":"Production","Fn":"Accessory","Fv":"Lens Hood: MH-RA55 (supplied)"},{"Ft":"Production","Fn":"Debut","Fv":"2013-11-06"}]