Observation head tilt angle: 45° Lens barrel: binocular Eyepiece: WF10*20mm high eye point eyepiece Objective lens: 0.70X~4.5X connecting zoom objective lens Magnification: 7X-45X, Interpupillary distance adjustment: range 54-75mm Sight distance adjustment: Both dioptrics can be adjusted, the adjustment range is ±5 diopters Working distance: 100mm