Pentax Jupiter III 8x21

Weight: 160 g
Brand: Pentax
Description: Type: binoculars, magnification: 8 x, objective lens diameter: 21 mm, exit pupil diameter: 2.63 mm, functions: pupillary distance adjustment, features: case/case included, design: multi-coated lenses, rubber
Width: 11.5
Height: 30
Type: Binoculars
Length: 8.3mm
Lens diameter: 21 mm
Exit pupil diameter: 2.63 mm
Minimum focusing distance: 3.5 m
Field of view at a distance of 1000 m: 123 m
Increase: 8 x
Angular field of view real:
Eye relief: 10 mm
Diopter adjustment: ±5D
Prism material: BAK-4
Interpupillary distance max.: 72 mm
Interpupillary distance min.: 58 mm
Relative brightness: 6.9
The Twilight Factor: 13
Prism type: Porro
Focusing: Central