Specification Eyepiece: Extra wide field 10x Eye-piece specially designed for ultra series. Nosepiece: Triplet revolving nosepiece with click stops. Stage: High quality S.S. Stage clips provided to hold the Slide. Focusing: By vertical movement of the Observation tube, with coarse adjustment using rack-pinion movement sand, fine motion by screw lever mechanism. Condenser: Abbe condenser having Numerical aperture of 1.25 with iris Diaphragm and swing out filter holder. This condenser unit incorporates high efficiency optical system for optimum utilization of light. Light Source: Battery operated LED pin-type Lamp with on and off switch and an optional arc-reflector set for using natural light to study the slide. Objective: Achromatic 10x and 40x. Packaging: Inner Thermocol / Styrofoam Packing and Outer Cardboard Box.