Who said you have to be in the dark to do astronomy! Turning your binoculars to the Sun is fun and educational when you have protective full-aperture solar filters installed. Watch the march of giant sunspots, the clouds of glowing vapor in the photosphere, and solar granulation detail. But be sure to protect your precious vision with safe Orion solar filters! Looking at the Sun without properly installed solar filters, even for an instant, can permanently damage your eyes. This set of two solar filters with an inside diameter of 4.30″ fit Orion 20×80 Astronomy binoculars so you can enjoy safe solar observations. These full-aperture optical glass filters deliver superb views of the Sun, without risk to your eyes. While more expensive than Mylar filters, Orion solar filters provide better contrast, a more natural yellow-orange – color rather than blue – and are more durable. The glass elements are machine-polished and triple-coated with an advanced nickel-chromium stainless steel alloy for a scratch-resistant surface. The filter passes only a fraction of the incoming light, rejecting harmful ultraviolet and infrared radiation. Each filter is mounted in an aluminum cell that slide-fits over the objective lenses of the binoculars. CAUTION: Never look at the Sun, either directly or through binoculars, without a professionally made protective solar filter installed that completely covers the front of the instrument, or permanent eye damage could result.