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Optolong Filters

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ALL OPTOLONG FILTERS SHIP FREE IN THE CONTINENTAL US!

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Optolong Optolong Clear Sky Filter - 82mm Round Mounted - CS-82

Introducing the Clear Sky Filter: Optolong's brand-new light pollution filter.

Optolong Clear Sky Filter - 82mm Round Mounted - CS-82

$205.00

$164.00

Optolong Optolong 2" L-Quad Enhance Filter - L-QEF-2

No need to travel to a dark sky site when you have the Optolong L-Quad Enhance Filter among your astrophotography gear.

Optolong 2" L-Quad Enhance Filter - L-QEF-2

$199.00

Optolong Optolong L-Pro Filter 2" Mounted

The L-Pro filter from Optolong is a multi-bandpass filter that works well for visual use as well as photographic use with CCD cameras and DSLR’s.

Optolong L-Pro Filter 2" Mounted

$199.00

Optolong Optolong H Alpha 7nm 36mm unmounted #11307

The Optolong H-Alpha 7nm is an extremely narrow emission-line filter that works by allowing a 7nm bandwidth of light, centered on the 656nm wavelength through, and blocking the transmission of contrast-killing light pollution wavelengths.

Optolong H Alpha 7nm 36mm unmounted #11307

$189.00

$151.20

Optolong Optolong UHC 77mm Mounted Filter for DSLRS and Mirrorless Cameras

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.

Optolong UHC 77mm Mounted Filter for DSLRS and Mirrorless Cameras

$189.00

Optolong Optolong H Alpha 7nm 36mm Unmounted #11304

Optolong H Alpha 7nm 36mm Unmounted #11304

Optolong H Alpha 7nm 36mm Unmounted #11304

$189.00

Optolong Optolong OIII 6.5nm 36mm Unmounted #11504

Optolong OIII 6.5nm 36mm Unmounted #11504

Optolong OIII 6.5nm 36mm Unmounted #11504

$189.00

$151.20

Optolong SII 6.5nm 36mm Unmounted #11404

Optolong SII 6.5nm 36mm Unmounted #11404

Optolong SII 6.5nm 36mm Unmounted #11404

$189.00

$151.20

Optolong Optolong Venus U Filter 1.25" Mounted

Image the sulphuric acid clouds of Venus or do UV landscape photography with the Optolong 1.25” Venus U Filter.

Optolong Venus U Filter 1.25" Mounted

$189.00

Optolong Optolong L-eNhance Light Pollution Dual Band Pass Imaging Filter - 1.25" Mounted

It is a dual-narrowband pass filter which has been designed for DSLR (digital SLR), color CMOS and CCD cameras.

Optolong L-eNhance Light Pollution Dual Band Pass Imaging Filter - 1.25" Mounted

$179.00

Optolong Optolong H Alpha 7nm 31mm unmounted #11306

The Optolong H-Alpha 7nm is an extremely narrow emission-line filter that works by allowing a 7nm bandwidth of light, centered on the 656nm wavelength through, and blocking the transmission of contrast-killing light pollution wavelengths.

Optolong H Alpha 7nm 31mm unmounted #11306

$169.00

$135.20

Optolong Optolong OIII 6.5nm 31mm Unmounted #11503

Optolong OIII 6.5nm 31mm Unmounted #11503

Optolong OIII 6.5nm 31mm Unmounted #11503

$169.00

$135.20

Optolong Optolong SII 6.5nm 31mm Unmounted #11403

Optolong SII 6.5nm 31mm Unmounted #11403

Optolong SII 6.5nm 31mm Unmounted #11403

$169.00

$135.20

Optolong Optolong H Alpha 7nm 31mm Unmounted #11303

Optolong H Alpha 7nm 31mm Unmounted #11303

Optolong H Alpha 7nm 31mm Unmounted #11303

$169.00

Optolong Optolong L-Pro 36mm Unmounted Filter

The Optolong L-Pro filter is a multi-bandpass filter that works well for visual use as well as photographic use with CCD cameras and DSLR’s.

Optolong L-Pro 36mm Unmounted Filter

$168.00

$134.40

Optolong Optolong Clear Sky Filter - 77mm Round Mounted - CS-77

The Clear Sky Filter is Optolong's newest light pollution filter.

Optolong Clear Sky Filter - 77mm Round Mounted - CS-77

$165.00

$132.00

Optolong OIII 6.5nm Filter 1.25" Mounted

Optolong OIII 6.5nm Filter 1.25" Mounted

$159.00

$127.20

Optolong SII 6.5nm Filter 1.25' Mounted

Optolong SII 6.5nm Filter 1.25' Mounted

$159.00

$127.20

Optolong CLS-CCD Filter 2" Mounted

Optolong CLS-CCD Filter 2" Mounted

$159.00

$127.20

Optolong Optolong OIII 6.5nm Filters

Optolong 6.5nm oxygen-III narrowband filter is for astrophotographers who want to obtain the maximum contrast of nebulae while cutting out background emission and suppressing star lights

Optolong OIII 6.5nm Filters

$159.00

Optolong Optolong SII 6.5nm Filters

Optolong 6.5nm sulphur-II narrowband filter is for astrophotographers who want to obtain the maximum contrast of nebulae while cutting out background emission and suppressing star lights.

Optolong SII 6.5nm Filters

$159.00

Optolong Optolong H Alpha 7nm Filter 1.25 Mounted

Optolong 7nm hydrogen-alpha narrowband filter is for astrophotographers who want to obtain the maximum contrast of nebulae while cutting out background emission and suppressing star lights.

Optolong H Alpha 7nm Filter 1.25 Mounted

$159.00

$127.20

Optolong Optolong L-Pro Filter 1.25" Mounted

The L-Pro filter from Optolong is a multi-bandpass filter that works well for visual use as well as photographic use with CCD cameras and DSLR’s.

Optolong L-Pro Filter 1.25" Mounted

$149.00

Optolong Optolong 2" Mounted H-Beta 25nm Filter

This Optolong H-Beta filter has a FWHM of 25nm, making it more suitable for visual observations of the Horsehead, California, and Cocoon nebulae.

Optolong 2" Mounted H-Beta 25nm Filter

$139.00

$111.20