Orion 5.81" ID Full Aperture Solar Filter

Orion 5.81" ID Full Aperture Solar Filter
Item # OR-7710
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  • Orion 5.81" ID Full Aperture Solar Filter allows you to safely observe the sun without damaging your eyes.
  • This optical glass filter fits snugly over your telescope's aperture to block 99.9% of incoming sunlight.
  • The 5.81" ID Full Aperture Solar Filter by Orion also blocks dangerous UV and IR energy from reaching your eyes.
  • Fits Orion StarBlast 4.5 and SkyQuest XT4.5 reflectors, AstroView 120 and 120ST refractors, StarMax and Apex 127mm Maksutov-Cassegrain telescopes, and other models.
  • Filter ID is 5.81" - fits telescope optical tubes with an outer diameter of 5.56" to 5.81" with included shim materials, and securing thumbscrews.
  • This Orion solar filter is mounted in a foam-lined aluminum cell featuring three equidistant securing thumbscrews, 4 x 1/16" thick adhesive foam tabs, and 4 x 1/8" thick adhesive foam tabs, for getting a custom friction fit to your specific telescope.
  • Note: All Orion solar filters are designed for use with an adequate friction fit attachment. Thumbscrews should ONLY be used to keep filter securely in place, once a friction fit has already been achieved.


Orion 5.81" ID Full Aperture Solar Filter

Ready to do solar astronomy? Turning your telescope to the Sun is fun and educational, but only if done safely! 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 a safe Orion solar filter. Looking at the Sun without a genuine safe, protective solar filter, even for an instant, can permanently damage your eyes! The Orion 5.81" ID Full-Aperture Solar Filter is superior to inexpensive Mylar types.

These full-aperture optical glass telescope filters deliver superb views of the Sun, without risk to your eyes. While more expensive than Mylar filters, Orion glass solar filters provide better contrast, a more natural yellow-orange color instead of blue, and their glass and aluminum construction is much more durable. They're easier to clean too. They're ideal for photographing the Sun!

The glass elements are machine-polished and triple-coated with an advanced nickel-chromium stainless steel alloy for a scratch-resistant surface. This thin-metal-film filter passes only a fraction of the incoming visible light, rejecting harmful ultraviolet and infrared radiation.

This Each Orion filter is mounted in an aluminum cell that slide-fits over the front of your telescope.

This item has product number: OR-7710.

Additional Information

Additional Information

SKU OR-7710
Manufacturer Orion
White Light Filter Material Specialized Metal Coated Glass
Glass, Film, or Herschel? Glass Filter
Filter OD Size in Inches 4.1" - 6"
Full Aperture or Off-Axis? Full Aperture
Warranty 1 Year Warranty
Filter Diameter 5.81"
Filter Fits Telescope OD Range of... 5.56" - 5.81"
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