Body: Aluminum die-cast body with all critical movements based on ball-bearing & wire-guides thereby ensuring smooth & precise manipulation Mechanical Slage: Co-axial low drive mechanical stage (125mm x 145mm) with traverse area of 50mm x 76mm Focussing Syslem: Co-axial coarse & fine focusing control with a locus adjustment and lind adjustment knobs. Condenser Holder: Rack & pinion mounted condenser holder. Illumination base with option (a), (b).(c) : (a) Built-illumination base with pre-centered 6V 20W halogen light source coupled with an efficient collector lens system. Power supply 230V AC 50Hz single phase. b) LEO Light source High brightness, longlile (30.000hrs) 1 w LED. (c) LED light source (with battery back-up) High brightness, longlile (30.000hrs) 1w LED. Battery back-up in-built NiMH Rechargeable batteries provide 6 to 8 hrs back-up on full charge. Nose Piece: Quadruple nosepiece based on precision ball-bearing mechanism, enables smooth objective change.