This glass solar filter has an inside diameter of 12.13-inches full aperture. It is a white light filter for safely observing the sun and sunspots.
Who said you have to be in the dark to do astronomy? Turning your telescope to the Sun is fun and educational. 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 one, even for an instant, can permanently damage your eyes.
Place the filter over the front of your telescope before turning it towards the sun. It will fit snugly over these telescopes (fits diameters up to 1/4-inch smaller with foam tape liner supplied.):
- XT10 Classic Dobsonian
- XT10 PLUS Dobsonian
- XT10i IntelliScope Dobsonian
- XT10g GoTo Dobsonian
- Atlas 10 EQ-G GoTo Reflector
This solar filter blocks 99.999% of incoming sunlight. The glass elements are machine-polished and triple-coated with nickel-chromium stainless steel. The filter is mounted in an aluminum cell and a foam tape liner is included so you can make sure the fit is snug to your 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 been achieved.
Superior to Film
This optical glass telescope filter delivers superb views of the Sun, without risk to your eyes. While more expensive than film 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 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.
*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 dust-caps 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.
Manufacturer's 1-Year Warranty: Limited Warranty against defects in materials or workmanship for one year from date of purchase. This warranty is for the benefit of the original retail purchaser only.
Manufacturer's Warning: Please note this product was not designed or intended by the manufacturer for use by a child 12 years of age or younger.