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Optolong Optolong L-Para Dual Narrowband Filter - 2.00"
Optolong L-Para is a brand new dual narrowband 10nm light pollution filter. The FWHM of L-Para is 10nm for OIII (500.7nm) and H-Alpha (656.3nm) respectively.
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Optolong L-Para Dual Narrowband Filter - 2.00"
$279.00
Optolong Optolong 3 Filter Set H-Alpha, SII, & OIII
SHO6.5nm filter kit includes SII6.5nm, H-Alpha7nm, and OIII6.5nm narrow-band filters
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Optolong 3 Filter Set H-Alpha, SII, & OIII
$509.00
Optolong Optolong UV-IR Cut Filter
Optolong UV/IR Cut filter is designed for ultraviolet and infrared wavelength blocking to improve sharpness of the image as most of the optics are designed for the visible spectrum
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Optolong UV-IR Cut Filter
$49.00
Optolong Optolong OIII 6.5nm Filter
Designed for Nebula Observation
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Optolong OIII 6.5nm Filter
$249.00
Optolong Optolong SII 6.5nm Filter
Optolong SII 6.5nm Filter
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Optolong SII 6.5nm Filter
$249.00
Optolong Optolong SHO-3nm Narrowband Filter Kit
Optolong SHO-3nm filter kit includes SII3nm, H-Alpha3nm, and OIII3nm narrow band filters
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Optolong SHO-3nm Narrowband Filter Kit
$1,319.00
Optolong Optolong L-eXtreme f/2 Dual-Band Filter
Optolong L-eXtreme F2 is a dual-band narrowband pass filter that meets the requirements for transmission at continuously varying angles
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Optolong L-eXtreme f/2 Dual-Band Filter
$339.00
Optolong Optolong L-eXtreme Dual Band 7nm HA/OIII Filter
L-eXtreme filter is dual band that passes Ha and OIII emission lines.
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Optolong L-eXtreme Dual Band 7nm HA/OIII Filter
$329.00
Optolong Optolong IR Pass 685nm Filter
Blocks wavelengths below 670nm to enhance contrast and surface detail and reduce the effects of seeing when used in IR-LRGB imaging of the moon and planets
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Optolong IR Pass 685nm Filter
$129.00
Optolong Optolong Venus U Filter
Venus-U filter makes it possible to obtain photographs, CCD or video images in the UV-A (320-400nm) and observe Venus’ cloud structures.
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Optolong Venus U Filter
$192.00
Optolong Optolong CLS-CCD Filter
The CLS-CCD broadband filter is designed to improve the visibility of various deepsky objects.
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Optolong CLS-CCD Filter
$105.00
Optolong Optolong OIII CCD 3nm Filter
Extra narrowband filter, allow a 3nm bandwidth of light, centered on a 500nm wavelength
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Optolong OIII CCD 3nm Filter
$460.00
Optolong Optolong L1 Dual-Combo Set
L1 Dual -Combo Set includes：one L-Quad Enhance Filter and one L-Para L-Quad Enhance Filter
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Optolong L1 Dual-Combo Set
$199.50
Optolong L-Pro Filter 1.25" Mounted (OPEN BOX)
Optolong L-Pro Filter 1.25" Mounted (OPEN BOX)
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Optolong L-Pro Filter 1.25" Mounted (OPEN BOX)
$129.00
Optolong Optolong Clear Sky Filter - 77mm Round Mounted - CS-77
The Clear Sky Filter is Optolong's newest light pollution filter.
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Optolong Clear Sky Filter - 77mm Round Mounted - CS-77
$189.00
Optolong Optolong SII 3nm CCD Filter
Optolong SII 3nm CCD Filter
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Optolong SII 3nm CCD Filter
$460.00
Optolong Optolong OIII 18nm Filter
Designed for nebula observation allowing 18nm bandwidth of light centered on a wavelength of 500nm through
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Optolong OIII 18nm Filter
$87.00
Optolong Optolong H-Alpha 3nm CCD Filter
Suitable for telescopes and lenses with focal ratios of f/3 and lower
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Optolong H-Alpha 3nm CCD Filter
$460.00
Optolong Optolong H Alpha 7nm Filter
Optolong H-Alpha 7nm filter is the popular narrowband filter allowing 7nm bandwidth of light centered on a wavelength of 656nm through
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Optolong H Alpha 7nm Filter
$229.00
Optolong Optolong L-Ultimate Light Pollution Dual Band Filter
The Optolong L-Ultimate is Optolong's newest and NARROWEST dual-band filter
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Optolong L-Ultimate Light Pollution Dual Band Filter
$419.00
Optolong Optolong L-eNhance Light Pollution Dual Band Pass Imaging Filter
Optolong L-eNhance is a dual-band pass filter which has been designed for DSLR (digital SLR), color CMOS and monochrome CCD cameras
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Optolong L-eNhance Light Pollution Dual Band Pass Imaging Filter
$249.00
Optolong Optolong UHC Filter
This UHC, or Ultra High Contrast, filter from Optolong provides a bit more contrast than the CLS filter, but works in much the same way
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Optolong UHC Filter
$85.00
Optolong Optolong Variable Polarizing Filter
Adjust the brightness level of the Moon, Venus, and other bright objects with the Optolong Variable Polarizer.
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Optolong Variable Polarizing Filter
$43.00
Optolong Optolong 7 Filter Set LRGB, H-Alpha, SII, & OIII
Opotlong 7 Filter LRGB SHO Filter set
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Optolong 7 Filter Set LRGB, H-Alpha, SII, & OIII
$732.00