Neutralizing Lens Set for Optics Demonstration Set contains two matching lenses that can be used to demonstrate the reverse optic effects of these two lens types.
The two lenses in this set are a match. Both lenses are 38 mm in diameter. With a focal length of 15 cm, they can be used to demonstrate the reverse optic effects of these two lens types. Each comes individually wrapped and in a labeled storage box.
1-800-452-1261
