8X40 Binoculars

Model

BM-5109B

Magnification

8X

Objective diameter

40mm

Prism Type

Porro/BAK4

Focus System

Individual

Number of Lens

6pcs/4groups

Lens Coating

FMC

Angle of View

7.85°

Field of View

137m/1000m,412ft/1000yds

Exit Pupil Diameter

4.8mm

Eye Relief

19.06mm

Relative Brightness

23.04

Twilight Index

17.9

Interpupillary Distance

54-73mm

Resolution

≤4”

Near Focus

5m

All Weather

Yes

Shock proof and Waterproof

Yes

Nitrogen Filled

Yes

Eyecups system

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