A: IDP ADJUSTMANT 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 centerr focus wheel until the image is sharrp and clear. 2. Open your right eye and close your left eye. Rotate the right eyepiece until the object sighted is sharp and clear. (Note the setting of the 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. Fold down for use with spectacles and plier for use without eyeglasses. They provide comfort and ease to promote the viewing position. Features: Item: 10 x 50 Magnification: 10 times Objective Lens Dia: 50 mm Angle: 8.2 degree Minimum Focus Distance: 5.0 m Exit Pupil: 5 mm Horizon: 17 mm Relative brightness: 25.00 Fog: Yes Size: 180x220 mm (L x H) Package weight: 1.04 kg Distance: 5-3000 m Package includes: 1x Dental High Power 1x Backpack 1x Strap 1 x Lens Cap 1x Eye Cap 1 x Lens Cloth 1x Packing box