Alstar 2" UHC (Ultra High Contrast) Filter - Superb Views of The Orion, Lagoon, Swan and Other Extended Nebulae

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Alstar 2" UHC (Ultra High Contrast) Filter - Superb Views of The Orion, Lagoon, Swan and Other Extended Nebulae

Regular Price: US$115.00

Special Price US$89.99

Availability: In stock

Supplier: Alstar

Category: Electronics Camera & Photo Accessories Telescope & Microscope Accessories Telescope Accessories Filters

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US$504.97

Nebula filter for increg contrast, also suitable for use with smaller telescopes. Many objects only first become visible at all when using an UHC filter. But also, highlights such as the Orion, Lagoon or Swan nebulae, show a whole new side to them. Can be used at both light-polluted and dark sky sites. Blocks the light from mercury and sodium-vapour lamps. 2" filter thread, each Alstar Ultra High Contrast Filter is individually inspected and proudly inscribed with the percentage of light transmittance of the O-III and H-beta emission lines. As many celestial objects, such as nebulae, radiate at other wavelengths, a considerable increase in contrast can be achieved by this. The background sky appears darker and all at once, faint details become visible.

Water Resistance Level: Not Water Resistant. Photo Filter Effect Type: Ultraviolet. Brand: Alstar. Manufacturer: Alstar. Date First Available: November 6, 2017. Is Discontinued By Manufacturer: No. Best Sellers Rank: #139 in Telescope Filters. Item model number: SKU_AM_UF2A. : B0778TG6ZC. Item Weight: 0.5 ounces. Product Dimensions: 2.8 x 2.7 x 0.6 inches.