Double Lens Holder

The Double Lens Holder is designed to support two standard 50mm diameter converging and/or diverging lenses at the same time, and is made of durable acrylic. There is a cut-out at the base of the holder that allows it to securely rest on a meter stick so that students can easily make the common measurements of image and focal distance. It also supports two different pinhole configuration cards using a slot at the base of the holder.     The Double Lens Holder is a component of our Introductory Optical System (#92-7700), and allows students to predict and measure a combined focal length. Please note: Lenses sold separately.