- The parts are now molded plastic that snap onto the track, making it possible to leave them in place when the track is moved.
- The three lenses are permanently mounted in three plastic supports for better durability.
- The point light source is now LED-based, using less energy and running at cooler temperatures.
- A new aperture plate lets you do experiments regarding lens diameter and shape, including the classic half-a-lens demonstration.
Looking for a sale? Our previous design of the Optics Expansion Kit is available for only $99. Limited quantities are available and ready for purchase from our overstock »