Not just protection — a front-row seat to solar activity.
See the Sun Like Never Before
Sunspots & Detail
View real solar surface activity
Partial Eclipse
Watch the moon cross the sun
Total Eclipse
Experience totality safely
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in 3 Simple Steps
Safe Solar Viewing
- Attach Filter Securely
- Align with the Sun
- Observe Safely
Solar Filters
Spectrum Solar Filter – Safe Sun & Eclipse Viewing
Safely observe the sun, sunspots, and solar eclipses with precision-engineered
filtration designed for your telescope.
Spectrum Full-Aperture Glass Solar Filter 10.00" ID – ST1000G is designed for safe, full-aperture solar observation through compatible telescopes. The premium glass filter helps produce a natural yellow-orange solar image for viewing sunspots, eclipse phases, and solar detail.
- Full-aperture glass solar filter
- Aluminum cell with nylon thumb screw and felt padding
- Designed to slip over the front of the optical tube
- Use the filter ID / internal diameter to select the correct fit
Fit note: Measure the outside diameter of your telescope tube and order the next larger filter size for a secure fit.
Experience Solar Viewing with Confidence
“Perfect fit and incredible clarity.
I could see sunspots within minutes.”
Verified Customer
“Perfect fit and incredible clarity.
I could see sunspots within minutes.”
Verified Customer
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Frequently Asked Questions
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Yes, all of our filters are safe, blocking up to 99.999% of the sun’s rays, perfect for unlimited visual use as well as photography. These filters are rated with a neutral density of 5. With proper care and handling, our filters will last for many years. Spectrum Telescope ISO Certified 12312-2while meeting or exceeding International Standards for safety.
You can expect to see a solar eclipse, sunspots, and surface granulation.
The market is filled with several different types of thin films today that are used for solar viewing. They are made from a polyester film like Baader, Black Polymer, Mylar, and others. The thin film we use is a black plastic polymer that is .002” thick and comes with a ND (neutral density) of 5 making it perfectly safe to view solar activity. When you view the sun, you’ll see a sharp image of natural orange instead of the blue or white like other brands.
Chromium is good for up to 100x magnification then black polymer. Therefore we can make full aperture large solar filters with a sharp pleasing image.