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Technical Details
- A must-have filter for safe observation of the sun through a telescope without damaging your eyes - optical glass filter fits snugly over your telescope's aperture to block 99.9% of incoming sunlight
- Fits Orion Obeserver 70mm, ShortTube 80mm, StarSeeker 80mm, and AstroView 90mm refractors; Apex and StarMax 90mm Mak-Cass telescopes; and other models
- Each Orion telescope solar filter is mounted in a foam-lined aluminum cell featuring three equidistant securing thumbscrews, 4x 1/16" thick adhesive foam tabs, and 4x 1/8" thick adhesive foam tabs for customized friction fit to your telescope
- Filter inside diameter is 4.10" - fits optical tubes with an outer diameter of 3.85" to 4.10" with included shim materials and securing thumbscrews
- 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
Product Details
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Product Description
Designed to fit snugly over the aperture of your telescope, these optical glass filters block 99.999% of incoming sunlight, allowing you to safely observe sunspots and solar granulation in the Sun's photosphere. The Sun appears in a natural, whitish color. The glass elements are machine-polished and triple-coated with nickel-chromium stainless steel for a scratch-resistant surface. Each filter has three nylon thumbscrews to ensure a snug fit to the front of your telescope or binocular. The thumbscrews complement the press-fit foam lining inside the filter's durable aluminum cell to accommodate diameters up to ¼" smaller than the nominal size. A tight press fit is still required for safe solar viewing. Lifetime limited warranty.
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Most Helpful Customer Reviews
1 of 1 people found the following review helpful:
4.0 out of 5 stars
Expands Astronomy to Daytime,
By
This review is from: 4.10" ID Orion Full Aperture Solar Filter (Electronics)
I've long wanted to watch and photograph sun spots. Some of the solar filter material felt too flimsy for me. I would like to have a dedicated solar scope, but the cost is prohibitive. This filter is sturdy and offers good views. It is excellent for occasional solar study. I thought about making a filter for one of my large scopes, but one doesn't need much light gathering power to view the sun. This filter is just about the right size. I use it on my Orion Apex 90 MAK-CASS telescope.
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