Eyepieces Secured wide field eyepieces WF 10x/18 with fixed pointer Observation tube Binocular 30° inclined tube, 360° rotation. Dioptrical adjustment for one eyepiece. Tube length 160 mm Interpupillary distance between eyepieces can be controlled from 55 to 75mm Nosepiece Reversed nosepiece for 4 objectives. Ball-bearing mechanism and click-stops Objectives Achromatic color coded semi-plan DIN objectives 4x N.A. 0.10, 10x N.A. 0.25, S40x N.A. 0.65 and S100x N.A. oil. The S40x and S100x-oil objectives are spring-mounted Stages A 130x130 mm stage with double layered mechanical X-Y stage. The translation range of the mechanical X-Y stage is 70x28 mm Focus control Coaxial coarse- and fine adjustment knobs on both sides with 0.002 mm graduations. Friction of focus control can be adjusted Condenser Height adjustable Abbe condenser N.A. 1.25 with iris diaphragm and filter holder Illumination LED 1 Watt illumination with intensity control. Internal power supply and charger for 85-230V operation (no external power supply necessary) and 3 NiMH AA type batteries Packaging Complete with spare fuse, manual and dustcover in styrofoam case Models equipped with S100x-oil objectives are delivered with 5 ml immersion oil