8X40 Wide View Bird Watching Binoculars with Sharp, Crisp, Clear Viewing from 1000 Yards

Description

How to use:
♦ A:IDP adjustment:
♦ Set the interpupillary distance by grasping the body and bending it until you can see one circle of view. The setting for your eyes will be indicated on the IPD scale. (Note the scale setting for later use.)
♦ B:Focusing:,
♦ 1.Close your right eye and sight an object with your left eye.Focus the binocular by rotating the center focus wheel until the image is sharp and clear.
♦ 2.Open your right eye and close your left eye.Rotating the right eyepiece until the object sighted is sharp and clear(Note the setting of diopter scale for later use.)
♦ 3.Both sides(eyes) are now in focus and you will need to use only the center focus wheel to focus on the other objects.
♦ C:Rubber fold-down eye cups:
♦ Fold down for use with eyeglasses and fold up for use without eyeglasses.They provide comfort and promote viewing ease.
Specifications:
Magnification: 8X
Eyepiece Diameter: 20mm
Objective Lens: 40mm
Field of View: 8.2" 143m/1000m
Exit Pupil Diameter:13mm
Weight: 680G
Size: 190X140X60mm
Porro System: Porro Prism
Prism Material: BAK4
Focusing System: Center
Package includes:
♦ 1 x Black 8x40 Binocular protective caps
♦ 1 x Strap
♦ 1 x carrying bag
♦ 1 x instruction