The Orion 4.30" ID Full Aperture Telescope Solar Filter delivers superb views of the Sun, without risk to your eyes. While more expensive than Mylar filters, Orion solar filter provides better contrast, a more natural yellow-orange-color rather than blue-and are more durable. It is ideal for photographing the Sun too. 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 front of your telescope. The filter will fit diameters up to 1/4" smaller with foam tape liner supplied.