Skip to main content
Free shipping over $99
Free Periodic Table Banner Pen over $49Free gift over $49
Free Periodic Table of Elements Mousepad over $149Free gift over $149
Share this product:
- Free shipping on orders over $99
- Free gift with every $49+ order
- 100% satisfaction guarantee
- Secure checkout
Two 50 mm spherical lenses; one is a double concave, the other a double convex, each with a focal length of 150mm. When placed together the net focal length is zero.
Great for optics experiments in the lab or classroom.
Age13+
Approx. Ship Size1.75 x 1.75 x 0.50 in
4.45 x 4.45 x 1.27 cm
4.45 x 4.45 x 1.27 cm
Weight0 lb 1 oz
0.01 kg
0.01 kg
Customer Reviews
Great item to teach opticsAlan Feingold from Atlanta, GA
I bought these to teach optics but I was impressed myself by how well they work.
