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IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.
IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.

Optolong Light Pollution Filters

Optolong light pollution filters are broadband filters that reduce sky glow from artificial lighting while keeping a natural color balance on stars and galaxies. The collection includes the L-Pro, the CLS and CLS-CCD, the Clear Sky filter, and an L-Pro + UHC clip filter kit for cameras that accept clip-in filters.

Unlike narrowband or dual-band filters, they suit galaxies, star clusters and reflection nebulae as well as emission nebulae, for color imaging from suburban sites.

Filters

$149.00 - $269.00
$149.00 - $269.00
$149.00 - $269.00
$149.00

Optolong L-Pro Filter

Options available
13 variants in stock

Multi-Bandpass Light Pollution Suppression Effective Spectrum from 380-750nm Maintains Natural Color Balance on Broadband Targets High Transmissio...

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$149.00 - $269.00
$149.00 - $269.00
$149.00 - $269.00
$149.00
$299.00 - $299.00
$299.00
$299.00 - $299.00
$299.00

Optolong L-Pro + UHC Clip Filter Kit

Options available

Two Optolong Clip-in Light Pollution Filters in One Kit L-Pro: Multi-Bandpass Suppression Across 380-750nm UHC: >99% Blocking of Mercury and So...

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$299.00 - $299.00
$299.00
$299.00 - $299.00
$299.00
Optolong CLS-CCD Light Pollution Filter
$95.00 - $159.00
$95.00 - $159.00
$95.00 - $159.00
$95.00

Optolong CLS-CCD Light Pollution Filter

Options available

Blocks >99% of primary light pollution emission lines Achieves >90% average transmission on key nebula wavelengths Integrated 300-1100nm UV/...

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$95.00 - $159.00
$95.00 - $159.00
$95.00 - $159.00
$95.00
Optolong CLS Light Pollution Filter
$55.00 - $85.00
$55.00 - $85.00
$55.00 - $85.00
$55.00

Optolong CLS Light Pollution Filter

Options available

Suppresses common light pollution sources Average transmission greater than 90% on key nebula emission lines Blocks light pollution lines with >...

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$55.00 - $85.00
$55.00 - $85.00
$55.00 - $85.00
$55.00
Optolong Clear Sky Light Pollution Filter
$99.00 - $205.00
$99.00 - $205.00
$99.00 - $205.00
$99.00

Optolong Clear Sky Light Pollution Filter

Options available

Suppresses common sources of urban light pollution Enhances contrast for deep-sky objects Improves natural color balance in astrophotography Durab...

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$99.00 - $205.00
$99.00 - $205.00
$99.00 - $205.00
$99.00