YJT8X42 K9 望遠鏡

Model

YJT8x42

Magnification

8x

Image resolution

5.3”

Objective lens diameter

Φ42mm.

Type of prism

K9

Prism size

16.5mm

Eyepiece diameter (outer)

8x(ø23mm.)

Objective diameter (outer)

8x(ø42mm.)

Number of lenses

6 pieces 4 group

Lens coating

FMC/objective lens and eyepieces are FBMC

Focus system

Cent.

Focusing lens

Obj.

Exit pupil diameter

Φ5.2 mm.

Exit pupil distance

17.2mm

Field of views (FOV)

Angle 6.3ͦ

Ft/1000Yds 331 ft

M/1000m  110m.

Minimum focal length

2 m.

Relative brightness

27.04

Twilight index

18.3

Diopter system

Right eyepiece

Diopter comp.

±5

Interpupillary distance

56-74mm.

Nitrogen filled

YES

Eyecups system

Twist-up

Pouch

YES

Cleaning cloth

YES

Silica gel

YES