Sharp stereo erect image over a wide field of view,Standard working distance is 110mm, to create enough space for the uses。 45inclined and 360rotatable binocular .The interpupillary distance is between 54-75mm,Observation 45 ° inclined, diopter adjustment in two tubes, easy to operate and feel no fatigue when long time use. Wide field and high eyepiont eyepiece WF10X/22mm 10X large field of view eyepiece, FOV 22mm,plan and high eye-point design, more suitable for search and observation。 Ergonomics design, shift hand wheel level (axial) bilateral , high repeatability precision. Best eye-point height, to ensure that different vision of the user can get a clear image。