Optics: All glass optics, Para focal, precentred, high numerical aperture, high resolution with Special coating having no effect of: Moisture, fungus, fogginess or any other weather effect with passage of time. Magnification: 50x to 675x. Stand: All metal constructed body with properly balanced, inclinable arm up to 90 degree for easy viewing. Focussing: Separate coarse fine focusing knobs. Stage: Full square stage 112 x 112 mm size with stage clips. Illumination: Substage Mirror Attachment. Nosepiece: Triple revolving. Objectives: 10x & 40/45x (s. L.) (all achromatic). Eyepieces: 10x & 15x. Condenser: Fixed abbe type condenser with iris diaphragm. Packing: Nicely packed in Styrofoam enclosure with box.