Optical System: Semi-Plan achromatic optics with anti-fungal treatment. Uniformly centered.Inierchangable & Parfocal, Anti-Fungus treated. Body: Aluminium die cast body with all critical movements based on ball bearing and wire guides, (hereby ensuring smooth and precise manipulation. Inclined Observation Head: Binocular 45 degree inclined, rotatable through 360 degrees Trinocular 45 degree inclined, rotatable through 360 degrees Eyepieces (widef ield) tor observation: WF10x (FN 18mm) paired eyepiece. The unique optical design of the compensating eyepiece provides relief from eye fatigue and renders color-compensated wide-field images of utmost clarity. Nosepiece: Quadruple revolving nosepiece based on precision ball-bearing mechanism with positive stop click stop.