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Optolong L-Series Light Pollution and Dual Band Filters

Optolong L-Series filters are designed mainly for one-shot color cameras imaging under light-polluted skies. The line goes from the broadband L-Pro to the multi-band L-Enhance and L-Quad Enhance, the Ha/OIII dual-band L-Para 10nm, L-Extreme 7nm and L-Ultimate 3nm, and the SII/OIII L-Synergy 7nm.

Dual-Combo sets pair two filters, such as L-Extreme with L-Synergy, so a color camera can capture all three main emission lines for bicolor or false-color palettes.

Filters

CA$199.00 - CA$377.00
CA$199.00 - CA$377.00
CA$199.00 - CA$377.00
CA$199.00

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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CA$199.00 - CA$377.00
CA$199.00 - CA$377.00
CA$199.00 - CA$377.00
CA$199.00
CA$335.00 - CA$432.00
CA$335.00 - CA$432.00
CA$335.00 - CA$432.00
CA$335.00

Optolong L-Extreme Filter

Options available
8 variants in stock

Narrow dual-bandpass filter for H-Alpha and OIII Blocks >99% of light pollution emission lines Peak transmission of >90% at critical wavelen...

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CA$335.00 - CA$432.00
CA$335.00 - CA$432.00
CA$335.00 - CA$432.00
CA$335.00
CA$251.00 - CA$363.00
CA$251.00 - CA$363.00
CA$251.00 - CA$363.00
CA$251.00

Optolong L-Enhance Filter

Options available
7 variants in stock

Dual-bandpass filter isolates H-Alpha, H-Beta, and OIII emission lines Peak transmission of over 90% for maximum signal Blocks over 99% of light p...

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CA$251.00 - CA$363.00
CA$251.00 - CA$363.00
CA$251.00 - CA$363.00
CA$251.00
CA$404.00 - CA$545.00
CA$404.00 - CA$545.00
CA$404.00 - CA$545.00
CA$404.00

Optolong L-Ultimate Ha/OIII 3nm Filter

Options available
14 variants in stock

Dual 3nm bandpass isolates Hydrogen-alpha and Oxygen-III emission lines Blocks light pollution across the 300-1000nm spectrum Greater than OD4 blo...

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CA$404.00 - CA$545.00
CA$404.00 - CA$545.00
CA$404.00 - CA$545.00
CA$404.00
CA$278.00 - CA$278.00
CA$278.00
CA$278.00 - CA$278.00
CA$278.00

Optolong L-Quad Enhance Filter

OPT-14702
3 in stock

Quad-bandpass design for color cameras Suppresses light pollution with OD2-OD4 blocking depth Maintains sharpness with a λ/4 transmitted wavefront...

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CA$278.00 - CA$278.00
CA$278.00
CA$278.00 - CA$278.00
CA$278.00
CA$432.00 - CA$432.00
CA$432.00
CA$432.00 - CA$432.00
CA$432.00

Optolong L-Synergy 7nm SII/OIII Dual Narrowband Filter

OPT-LSYNERGY
3 in stock

Captures Sulfur-II and Oxygen-III Emission Lines Simultaneously Engineered for Hubble Palette (SHO) Imaging with Color Cameras Strict 7nm Bandpass...

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CA$432.00 - CA$432.00
CA$432.00
CA$432.00 - CA$432.00
CA$432.00
CA$362.00 - CA$362.00
CA$362.00
CA$362.00 - CA$362.00
CA$362.00

Optolong L-Para HA/OIII 10nm Filter - 2"

OPT-AS100221
5 in stock

Dual Narrowband H-Alpha & OIII Filter Suppresses Mercury, Sodium & LED Light Pollution Optimized for Fast-Ratio Systems (RASA, HyperStar) ...

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CA$362.00 - CA$362.00
CA$362.00
CA$362.00 - CA$362.00
CA$362.00
CA$796.00 - CA$796.00
CA$796.00
CA$796.00 - CA$796.00
CA$796.00

Optolong L-Extreme + L-Synergy L2 Dual-Combo Filter Set - 2"

OPT-L2-COMBO
3 in stock

Includes L-eXtreme (H-alpha + OIII) and L-Synergy (SII + OIII) filters Enables Hubble Palette (SHO) imaging with one-shot color cameras Captures t...

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CA$796.00 - CA$796.00
CA$796.00
CA$796.00 - CA$796.00
CA$796.00
CA$419.00 - CA$419.00
CA$419.00
CA$419.00 - CA$419.00
CA$419.00

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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CA$419.00 - CA$419.00
CA$419.00
CA$419.00 - CA$419.00
CA$419.00
CA$558.00 - CA$558.00
CA$558.00
CA$558.00 - CA$558.00
CA$558.00

Optolong L-Quad Enhance + L-Para L1 Dual-Combo Filter Set - 2"

OPT-L1-SET
3 in stock

L-Quad Enhance Filter: A quad-bandpass filter designed for balanced RGB color from broadband targets. L-Para L1 Filter: A dual-narrowband filter...

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CA$558.00 - CA$558.00
CA$558.00
CA$558.00 - CA$558.00
CA$558.00