{"closeOnBackgroundClick":true,"bindings":{"bind0":{"fn":"function(){$.fnProxy(arguments,\'#headerOverlay\',OverlayWidget.show,\'OverlayWidget.show\');}","type":"quicklookselected","element":".ql-thumbnail .Quicklook .trigger"}},"effectOnShowSpeed":"1200","dragByBody":false,"dragByHandle":true,"effectOnHide":"fade","effectOnShow":"fade","cssSelector":"ql-thumbnail","effectOnHideSpeed":"1200","allowOffScreenOverlay":false,"effectOnShowOptions":"{}","effectOnHideOptions":"{}","widgetClass":"OverlayWidget","captureClicks":true,"onScreenPadding":10}
{"ensembleSEOTranslationTypes":"ensemble","widgetClass":"BreadcrumbWidget","productSEOTranslationTypes":"product","categorySEOTranslationTypes":"category|section,category,thumbnail","delimText":"","catalogSEOTranslationTypes":"catalog","showCatalog":false}
FreeLifetimeTech Support
Do you have an Orion or Meade telescope?
Find the correct filter
Don't have an Orion or Meade telescope?
How to measure your telescope
Determining the Correct Orion Solar Filter for your Telescope A full-aperture solar filter is designed to fit over the front of a telescope. It allows safe viewing of the Sun by reducing the light by 99.99% and preventing concentrated heat from entering the telescope, which could cause injury to the user or damage to equipment.
If your telescope is not listed on our solar filter chart, you can determine the size of filter needed for your telescope by taking the following steps:
Measure the maximum outside diameter (OD) of the front end of your telescope.
The solar filter sizes listed on our website refer to the inner diameter (ID) of the filter's foam-lined metal cell for Orion Safety Film Solar Filters, which slip over the front of the telescope. Choose a filter whose size matches the OD of your telescope's front end, or that is up to 0.25 inches larger than the front end.
Installing the Orion Solar Filter on Your Telescope If your solar filter includes three thumbscrews, back them out to just inside the wall of the metal cell. Alternatively, if your filter includes foam shims, you can install them now to ensure a snug fit. Then place the solar filter over the outside of the telescope. It may require some light force to push the filter into place, but make sure it is seated completely over the telescope. Then lightly tighten the thumbscrews (if included) to further secure the filter on the telescope.
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.
This solar filter is designed and manufactured in the USA.
Orion assures that all solar filters are tested at specialized labs that are accredited to verify compliance with the ISO 12312-2 safety specifications for solar viewing.