PENTAX UP 8-16x21, brown

Weight: 310 g
Brand: Pentax
Product color: Brown
Description: Type: binoculars, magnification: 16 x, objective lens diameter: 21 mm, exit pupil diameter: 2.60 mm, functions: Zoom
Type: Binoculars
Housing material: Plastic
Lens diameter: 21 mm
Exit pupil diameter: 2.6mm
Minimum focusing distance: 3m
Field of view at a distance of 1000 m: 87 m
Increase: 16 x
Angular field of view real:
Eye relief: 14 mm
Diopter adjustment: ±4D
Prism material: BAK-4
Interpupillary distance max.: 73.5 mm
Interpupillary distance min.: 56 mm
Relative brightness: 5.7
The Twilight Factor: 13
Prism type: Porro
Focusing: Central