Thousand Oaks Optical 4"x4" Solar Filter Sheet for Telescopes, Binoculars and CamerasA good astronomer wants to use his telescope at night AND day. For this you need a high quality solar filter. Sunspots, eclipses and transiting satellites, all can be seen clearly and safely when using a silver-black polymer filter. The sun will appear in a natural..

Thousand Oaks Optical 6"x6" Solar Filter Sheet for Telescopes, Binoculars and CamerasBlack Polymer sheets are commonly used to make home-made solar filters. Can be used for naked eye observation of the sun, telescopes, finders, and binoculars. - We only sell Thousand Oaks Optical (TOO) solar filters, the leading manufacturer that has been making sa..