Optolong CLS Filter - 2" Mounted - CLS-200
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Zhumell 2 inch High Performance Urban Sky Filter - ZHUL065-1 is no longer available.
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Description
Zhumell 2 inch High-Performance Urban Sky Filter
The Zhumell 2" Urban Sky filter increases the contrast of deep-sky objects like emission nebulae and darkens the background sky by blocking mercury vapor light transmissions and enhancing transmission in the hydrogen beta, doubly ionized oxygen and hydrogen alpha regions of the spectrum.
This Urban Sky Filter effectively blocks mercury-vapor light and higher transmission at critical hydrogen-alpha and hydrogen-beta lines than competing filters. Bright, light-polluted skies appear much darker, and the contrast between object and sky is improved significantly. This contrast-enhancement effect is particularly apparent on nebulas. Unlike stars, emission nebulas give off light in a very narrow range of wavelengths.
The Zhumell Urban Sky Filter allows maximum transmission of the important wavelengths of hydrogen-alpha, hydrogen-beta, and doubly ionized oxygen-the ones most commonly emitted by nebulas. Views of galaxies and star clusters are also enhanced, although not as much.
Supplier SKU
ZHUL065-1
Shipping Restrictions
Ships to most international destinations, APOs, and FPOs.
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Dimensions & Specifications
Brand
Zhumell
Size
2 Inches
Telescope Accessories Series
Filters
Type
Moon Filters
Marketplace Type Code
Moon Filters
International Shipping
Canada
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Product Guarantee
We stand behind all the products we sell, and your satisfaction is our top priority. If you're not satisfied with the quality of your purchase, simply send the item back to us in its original packaging within 30 days of its delivery.
Manufacturer Warranty
Default manufacturer warranty.
Return & Exchange Policy
At our site, returns are easy! You may return new, unused, and resalable items for a refund or exchange. Simply ensure that the item is returned in its original product packaging within 30 days of delivery.
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