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Waterproof O-Ring Sealed Argon Gas Purged
The performance of this filter delivers images that would otherwise not be possible due to the negative influence of the light-polluted sky
each package includes an adapter that allows you to use your smartphone to easily capture and share the beauty unfolding in your eyepiece
5 Hour Integration
even in challenging low-light environments
99% Reflective 3" Diagonal By Use_Birding Waterproof O-Ring Sealed Argon GasThe Explore Scientific 3 inch Dielectric Coated Diagonal Mirror comes complete with 2 inch Adapter and dust covers. Solid construction and light weight, this first surface coated diagonal mirror reflects 99% of the light to help maintain the brightest possible image from your telescope. The insert barrel is a double taper, so it can be smoothly inserted or withdrawn from the focuser. The wide part of the taper prevents the diagonal from accidentally
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