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OWL Astronomy Products |
of greatly reduced light pollution from 440nm (blue) to 540nm (green). This window includes the important
hydrogen-Beta line at 486nm, the two ionized oxygen lines at 496 and 501nm, and the two
comet (cyanogen) lines at 511 and 514nm. Also important, at least photographically, is the red
hydrogen-Alpha line at 656nm.Because of the large variety of filter types and sizes, we cannot possibly keep all versions in stock. We always have the most popular ones in stock and can quickly drop-shop anything that is not in stock.
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The Deep Sky Filter is Lumicon's most popular nebula filter. It blocks all high and low
pressure mercury and sodium vapor lamp light, neon lights and airglow, while transmitting
the rest of the visible spectrum. Visually, the Deep Sky Filter enhances contrast of nebula
under both light-polluted and dark skies. The Deep Sky Filter also passes infrared light,
making it an excellent filter for photographing deep space objects through light-polluted
skies. Recommended for telescopes 3 inch aperture and larger.
To ensure the highest quality of your filter, the strictest quality control standards are employed throughout Lumicon's production process. Each Lumicon Deep Sky Filter is individually inspected and proudly inscribed with the percentage of light transmittance of the H-Alpha, H-Beta and OIII emission lines. |
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This Lumicon filter is the ULTIMATE nebula filter. The original Lumicon Ultra High Contrast Filter
is a narrow-band nebula filter unbeatable for
revealing nebulosity. This achievement in performance is attributed to exclusively
designed coatings that isolate the two doubly ionized oxygen lines (496 and 501nm) and the
H-beta line (486nm) emitted by planetary and most emission nebulae. The result is superb
views of the Orion, Lagoon, Swan and other extended nebulae. You can finally see the North
American Nebula visually. This filter is especially useful under dark skies where the faint
nebulosity stands out in vivid contrast to the dark sky. Best for telescopes 8" or larger in aperture.
To ensure the quality of your filter, the strictest quality control standards are employed throughout the production process. Each Lumicon Ultra High Contrast Filter is individually inspected and proudly inscribed with the percentage of light transmittance of the primary emission lines. |
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This famous Lumicon OIII narrow band-pass filter isolates just the two doubly ionized oxygen
lines (496 and 501nm lines).These lines are emitted by diffuse, planetary and extremely faint nebulae. Thus,
these faint objects become much more visible against the blackened background of space. The
Lumicon Oxygen III Filter produces near-photographic views of the Veil, Ring, Dumbbell and
Orion nebula, among many other objects. Performs best under both light-polluted and dark
skies. You will be amazed at what the OIII filter allows you to see! Best for telescopes 8" or 10"
or larger in aperture.
To ensure the quality of your filter, the strictest quality control standards are employed throughout the production process. Each Lumicon Oxygen III Filter is individually inspected and proudly inscribed with the percentage of light transmittance of the primary emission lines. |
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This Hydrogen-beta filter is nicknamed the "Horsehead Nebula filter". The Lumicon H-Beta Filter
isolates only the hydrogen-beta line of the spectrum (486nm) in a narrow pass-band just 9 nm
wide. This is the least of any nebula filter. The result is extreme contrast between
the black background of space and the delicate Hydrogen - Beta emission of extended nebulae.
Now you can view extremely faint, special objects such as the Horsehead, Cocoon and California
Nebulae. In many cases, the Lumicon H-Beta Filter is the ONLY way to view these objects. A
transparent sky, a 8" or larger telescope, and the Lumicon H-Beta Filter, will tremendously
aid in viewing those nearly impossible objects.
To ensure the quality of your filter, the strictest quality control standards are employed throughout the production process. Each Lumicon Hydrogen-beta Filter is individually inspected and proudly inscribed with the percentage of light transmittance of the primary emission line. |
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The Lumicon Night Sky Hydrogen-alpha is primarily a filter used for photography of
faint emission nebula. It may also be used visually with large telescopes on faint nebula.
It reaches a peak of almost 100% transmission just before the
hydrogen-alpha line at 656nm and then continues into the near infra-red. If you need to
have an image with no infra-red component, you would need to use an infra-red blocking filter
with this filter.
CAUTION: This filter is NOT intended for looking a the sun in any fashion. Use of this filter on the sun may result in damage to your eyes or telescope. It is for photography of faint nebula only. |
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This filter is just about essential for color photography of deep-sky objects using CCD/Digital cameras.
It also provides better photos for black and while photos. This IR blocker filter passes all light except for the IR (infrared) and UV (ultraviolet). While these wave lengths are invisible to the human eye, they are very photographically active. All CCD/Digital cameras are very sensitive to IR. If you do not have an IR filter in the line and try to do tri-color photographs, the IR is passed by many of the filters of various colors. A blue filter that passes IR will end up with a much less saturated photo because the blue will be contaminated with the IR. In addition any telescope with a lens will not focus the IR at the same point as the visible light. This results in a out of focus blur on those objects that have an IR component. |
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Last Updated March 4, 2011