OLYMPUS CX31 The CX31 has many features that make it fit in well with the educational setting: Solid, sturdy design Corrected Plan C Achromat objectives Olympus CX31 Microscope Anti-fungus treatment Inward-facing quadruple revolving nosepiece 6V/30W halogen bulb light source Fixed Abbe condenser Ergonomically designed for use and transport Built-in right hand holds and rackless design