Specs:
Viewing head: Trinocular head Binocular & Trinocular Head Angle of viewing 45º
Zoom ratio: 1: 6.7
Eyepiece: WF10X / 22mm Diopter Adjustment Eyepiece
Objective: 0.67x-4.5x
Total Magnification: 6.7x-45x 
Interpupillary distance adjustment range: 54-75mm
Working distance: 105mm
Illumination: Reflected and transmitted LED (Dual illumination)
Vertical Size: 300mm
Focus diatance: 100mm
Base Size: 285x238mm