Solar Binocular Filter

I remixed this to use with the lenses cut out of a pair of my cheap cardboard Solar Eclipse glasses. I also resized them to fit snugly on my binoculars that have an outside diameter of roughly 61mm.

Use a pencil/pen to trace the inside of the larger ring onto the cardboard glasses you are sacrificing for this project, then cut along your line. I used some tape to help hold the lenses in before snapping in the inner ring, but this probably is not necessary.

Good luck and enjoy the great A