(1) Design principle: two parallel beam paths optic system, modular construction
(2) Standard set: SM optic head with 1.0x plan achromatic objective
(3) Zoom range: 0.62x-5x
(4) Zoom ratio: 8:1
(5) Magnification: 6.2x-50x (with accessory lens: 1.9x-400x )
(6) Working distance: 80mm (with accessory lens: 26mm-278mm)
(7) Field of view: 33.9mm- 4.2mm (with accessory lens: 106mm- 0.6mm)
(8) Interpupillary distance: 50mm-75mm
(9) Dioptric correction: +5 -- -5
(10) Optional objective: planachrmatic: 0.32x , 0.5x, 0.63x achromatic: 1.6x, 2.0x
(11) Optional eyepiece: WFH10x-D/21, WF16x, WF20x, WF25x