Observation Head Binocular Head is equipped with 45-deg. inclined observation tubes with adjustable inter-pupillary distance. Nosepiece Quadruple revolving Nosepiece with accurate centring and positive click stops. Stage Large sturdy coaxial arrangement for x-y movement. Illumination Brightfield vertical illuminator 6V-20W Halogen with aperture diaphragm, filter slots and bulb centring mechanism. Objectives Corrected flat field achromats M4X-M10X & M40X SL. Eyepieces Wide field 10X and H15X (paired). Fitted with Camera Port on the side of Microscope base for Microphotography Equipment and CCTV.