These budget-friendly solar filters feature a black-polymer film material that is stronger and more durable than other thin film solar filters. Once installed on a finder scope or telescope, these E-Series Solar Filters display the Sun in a pleasing, natural yellow-orange color unlike the white or especially unnatural blue shade cast by some other types of filters. The yellow-orange image of the Sun yields high levels of contrast and clarity for sharp solar views. Each Orion E-Series Safety Film Solar Filter includes a strip of adhesive-backed felt to help ensure a secure friction-fit of the filter on a finder scope or telescope.
Which Solar Filter Fits My Scope?
*WARNING! When using a truss tube Dobsonian telescope for solar observing, always use a Light Shroud and a properly sized solar filter. When you install the Light Shroud make certain there are no gaps between the Shroud and the telescope where direct sunlight can reach the telescope mirror. When a truss tube telescope (equipped with a solar filter but no Light Shroud) is pointing near (not at) the Sun, direct sunlight can hit the mirror and focus on the solar filter or other portions of the telescope. This can lead to eye injury or damage to the telescope. Using a Light Shroud protects your telescope from peripheral sunlight.
Before using any telescope for solar observing, make sure to install all dustcaps or other protective covers on all optical components such as finder scopes to keep sunlight from passing through them. Glancing through an uncovered optical system, even for an instant, can cause permanent eye damage. Always install protective caps on all optical instruments if left out during daylight hours.
CAUTION: Never look at the Sun, even for an instant, without a protective solar filter. Doing so can permanently damage your eyes.