Brand | Orion |
Material | metal |
Photo Filter Thread Size | 1.25 Inches |
Photo Filter Effect Type | Hydrogen Beta |
Water Resistance Level | Not Water Resistant |
Product Dimensions | 1.25"L x 1.25"W |
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Orion's Hydrogen-Beat eyepiece filter makes it possible to view the elusive Horsehead, California, and Cocoon Nebulas in dark skies. Selective band-pass filter transmits only the hydrogen-beta light these faint nebulas emit. Filter allows you to observe targets that are considered trophies of visual astronomy. Best used with a moderate to large aperture telescope and clear, dark skies. Threaded to fit 1.25" eyepieces and threaded diagonal barrels
Product Dimensions | 3.25 x 3.25 x 0.5 inches |
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Item Weight | 1.6 ounces |
ASIN | B000HG301S |
Item model number | 5583 |
Customer Reviews |
4.5 out of 5 stars |
Best Sellers Rank | #324 in Telescope Filters |
Is Discontinued By Manufacturer | No |
Date First Available | November 1, 2003 |
Manufacturer | Orion |
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