HED.45.M20 Binocular Head with WF10X
--Parallel beam paths, high quality optic system
--Modular construction, various packages available
--High resolution and distortion-free contrast image
--Zoom ratio is 8:1 Zoom range: 0.62x-5x
--Total magnification: 1.9x-400x (with accessory lens)
--Field of view 0.6mm-106mm
--Working distance:26mm-296mm (with accessory lens)
--Interpupillary distance: Adjustable 50mm- 75mm
--Dioptric correction: +5 to -5
--Diameter of main body: 76mm