Baader Planetarium 1.25" Moon & Skyglow Telescope Filter - FMS-1
23 Reviews
Our Price:
$92.00
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Description
Lumicon 2" Hydrogen-Beta Filter
The Lumicon 2" H-Beta Filter isolates only the Hydrogen-beta line of the spectrum (486.5nm) while completely blocking the rest of the overall spectrum of light. The result is extreme contrast between the black background of space and the delicately attenuated H-beta light needed to view a few select, extremely faint objects such as the Horsehead, Cocoon and California Nebulae. In many cases, the Lumicon H-Beta Filter is the ONLY way to view those objects. A steady, transparent sky, 8" or larger aperture (in most cases) and a maximum-efficiency exit pupil (7mm), combined with the Lumicon H-Beta Filter, all make an unbeatable combination for viewing those "notch in the belt" objects. Lumicon measures every filter individually on a Perkin-Elmer Double-Beam spectrophotometer, inscribing on the filter its % transmission for the primary H-beta Line.
With this filter, all nebulae may be checked for H-beta emissions, with reference to views given by your other Lumicon filters.
Not intended for photography.
Supplier SKU
LF3060
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Dimensions & Specifications
Format
2 Inch
Brand
Lumicon
Size
2 Inches
Type
Deep Sky Filters
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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
One Year
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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