Movement of Optical Tubes HORZONTAL: Adduction + 50? / Adduction -40? VERTICAL: Hyper 30? / Hyper 30? TORSIONAL: Incyclo 20? / Excyclo 20? Slide Illumination Rheostat controlled 12V Lamp for each slide. After Image illumination by 12V Lamp (for better illumination) Auto Flashing of Slide illumnatin eiher SIMULTANEOUS or ALTERNATE in RAPID & VARIABLE modes. Selection Five Modes of Slide illumination namely NORMAL, FLASHING RIGHT, FLASHING LEFT. FLASHING R+L & AUTOFLASHING, can be selected by a single selector knob. Standard Accessories A set of slides containing 9 Pairs power Cord. Dust Cover. Two Spare Bulb 12V. Optional Accessories Instrument Table (Motorized)/Manual Table Haidinger Brushes