Pentax 8х40 PCF-WPII

Weight: 900 g
Brand: Pentax
Description: Type: binoculars, magnification: 8 x, lens diameter: 22 mm, exit pupil diameter: 2.75 mm, functions: pupillary distance adjustment, features: case/pouch included, design: retractable eyecups, multilayer
Width: 136
Height: 76
Additional Information: JIS Class 6
Type: Binoculars
Length: 178 mm
Housing material: Metal
Lens diameter: 40 mm
Exit pupil diameter: 5 mm
Minimum focusing distance: 3.5 m
Field of view at a distance of 1000 m: 110 m
Increase: 8 x
Angular field of view apparent: 50°
Angular field of view real: 6.3°
Eye relief: 20 mm
Diopter adjustment: ±2D
Interpupillary distance max.: 72 mm
Interpupillary distance min.: 57 mm
Relative brightness: 25
The Twilight Factor: 17.9
Prism type: Porro
Number of groups of optical elements: 3
Number of optical elements: 5
Focusing: Central