Pentax XL-7 Eyepiece SMC 70502
Specifications Magnification: 72X Lens Structure: 7 elements, 5 groups Real Field of View: 0.9 Degrees Apparent Field of View: 65 Degrees Field of View at 1000 m: 16m Field of View at 1000 yd: 52 ft. Exit Pupil: 1.1mm Eye Relief: 20mm Relative Brightness: 1.2 Eyepiece Size: 4.4 x 2.4 in. Lens & Outside Diameter: (113 x 60mm) Weight (Eyepiece): 14.8 oz. (425g)