Thousand Oaks Nebular Filter 2" Lp-4 H-beta

Thousand Oaks Nebular Filter 2" Lp-4 H-beta Reviews

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Enhance your deep sky viewing with the latest in multi-layer coating technology. Over three years in development. Our filters transmit desired wave-lengths in a very steep slope vs. gentle transition slopes in competitive brands. This means better contrast and overall performance. LP-4 Hydrogen Beta (Red Cell) For Horsehead, California nebula and other faint nebulae.

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Mar 17, 2011 13:41:04

Thousand Oaks Solar Filter Type 2+ for 5" Clear Aperture Scopes (Celestron C-102, Meade 4500, DS-127, Sky Max 127, Tak FS-102, Tak-106 N, Tak FSQ-106, Vixen 102)

Thousand Oaks Solar Filter Type 2+ for 5" Clear Aperture Scopes (Celestron C-102, Meade 4500, DS-127, Sky Max 127, Tak FS-102, Tak-106 N, Tak FSQ-106, Vixen 102) Reviews

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Made with high quality hand select glass coated with our exclusive Solar II Plus. The most durable glass filter on the market. Transmission is 1/1,000th of 1% (Optical Density 5). Great for both visual and photographic use. Solar image is yellow-orange. Guaranteed fifteen years. CLEAR APERTURE:127mm.00" OUTER CELL I.D. 146mm.75"

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Mar 13, 2011 14:58:03

Thousand Oaks Solar Filter Type 2+ for Televue 85mm, Takahashi FS-78, Vixen 4 & GP-102

Thousand Oaks Solar Filter Type 2+ for Televue 85mm, Takahashi FS-78, Vixen 4 & GP-102 Reviews

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Made with high quality hand select glass coated with our exclusive Solar II Plus. The most durable glass filter on the market. Transmission is 1/1,000th of 1% (Optical Density 5). Great for both visual and photographic use. Solar image is yellow-orange. Guaranteed fifteen years.

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Feb 18, 2011 20:32:03

Orion 4.10" ID Solar Filter for StarMax 90, Apex 90, Meade ETX-90

Orion 4.10" ID Solar Filter for StarMax 90, Apex 90, Meade ETX-90 Reviews

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Orion 4.10" ID Solar Filter for StarMax 90, Apex 90, Meade ETX-90 Detail

• A must-have for safe observation of the sun 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 (see chart below)
• 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

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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• Orion StarMax 90mm TableTop Mak-Cass Telescope
• Orion 1.25" 13% Transmission Moon Filter for Telescope Eyepieces
• Sky & Telescope's Pocket Sky Atlas
• NightWatch: A Practical Guide to Viewing the Universe

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Feb 10, 2011 21:18:04

Orion 4.57" ID Solar Filter for StarMax 102, Apex 102, SVP 100

Orion 4.57" ID Solar Filter for StarMax 102, Apex 102, SVP 100 Reviews

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Orion 4.57" ID Solar Filter for StarMax 102, Apex 102, SVP 100 Detail

• A must-have for safely observing the sun without damaging your eyes
• Optical glass filter fits snugly over your telescope's aperture to block 99.999% of incoming sunligh
• Glass elements are machine-polished and triple-coated with nickel-chromium stainless steel
• Filter is mounted in an aluminum cell and supplied with foam tape liner
• Fits Orion StarMax and Apex 102, AstroView 100, SkyView Pro 100, ED 80 Refractor

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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Feb 05, 2011 13:30:05