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Optolong Narrowband Filters

Optolong narrowband filters isolate single emission lines for imaging nebulae with a monochrome astronomy camera, even from bright city skies. The range covers H-alpha, OIII and SII filters in 3nm and in 6.5nm or 7nm bandwidths, plus sets: Ha, OIII and SII 3nm, Ha 7nm with OIII and SII 6.5nm, and LRGB sets with H-alpha or with all three narrowband lines.

The 3nm filters give the highest contrast, while 6.5nm and 7nm versions are more forgiving of fast optics.

Filters

CA$931.00 - CA$1,413.00
CA$931.00 - CA$1,413.00
CA$931.00 - CA$1,413.00
CA$931.00

Optolong LRGB, Ha, OIII & SII Filter Set

Options available
3 variants in stock

Complete 7-filter set for monochrome astrophotography Includes Luminance, Red, Green, and Blue broadband filters Includes 3nm Hydrogen-alpha, Oxyg...

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CA$931.00 - CA$1,413.00
CA$931.00 - CA$1,413.00
CA$931.00 - CA$1,413.00
CA$931.00
Optolong Ha 7nm, OIII 6.5nm & SII 6.5nm Filter Set
CA$651.00 - CA$937.00
CA$651.00 - CA$937.00
CA$651.00 - CA$937.00
CA$651.00

Optolong Ha 7nm, OIII 6.5nm & SII 6.5nm Filter Set

Options available

H-alpha Filter: 7nm Bandpass centered at 656nm Oxygen-III Filter: 6.5nm Bandpass centered at 500nm Sulphur-II Filter: 6.5nm Bandpass Hubble Pa...

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CA$651.00 - CA$937.00
CA$651.00 - CA$937.00
CA$651.00 - CA$937.00
CA$651.00
CA$517.00 - CA$797.00
CA$517.00 - CA$797.00
CA$517.00 - CA$797.00
CA$517.00

Optolong LRGB + H-Alpha 7nm Filter Set

Options available

Complete 5-Filter LRGB and H-Alpha Set 7nm H-Alpha Filter Centered at 656.3nm Blocks 589nm Sodium Light Pollution Line High Transmission for Natur...

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CA$517.00 - CA$797.00
CA$517.00 - CA$797.00
CA$517.00 - CA$797.00
CA$517.00
Optolong OIII 6.5nm Narrowband Filter
CA$223.00 - CA$321.00
CA$223.00 - CA$321.00
CA$223.00 - CA$321.00
CA$223.00

Optolong OIII 6.5nm Narrowband Filter

Options available
3 variants in stock

6.5nm Narrowband OIII Filter Centered on 500nm Wavelength Captures both 495.9nm and 500.7nm Emission Lines Blocks Light Pollution and Skyglow Idea...

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CA$223.00 - CA$321.00
CA$223.00 - CA$321.00
CA$223.00 - CA$321.00
CA$223.00
Optolong SII 6.5nm Narrowband Filter
CA$223.00 - CA$321.00
CA$223.00 - CA$321.00
CA$223.00 - CA$321.00
CA$223.00

Optolong SII 6.5nm Narrowband Filter

Options available
3 variants in stock

Isolates the Sulfur-II (SII) emission line at 672nm Tight 6.5nm bandpass for maximum contrast Enables imaging in heavily light-polluted skies and ...

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CA$223.00 - CA$321.00
CA$223.00 - CA$321.00
CA$223.00 - CA$321.00
CA$223.00
Optolong H-Alpha 7nm Narrowband Filter
CA$223.00 - CA$321.00
CA$223.00 - CA$321.00
CA$223.00 - CA$321.00
CA$223.00

Optolong H-Alpha 7nm Narrowband Filter

Options available
3 variants in stock

Isolates the 656nm Hydrogen-alpha emission line 7nm bandpass for maximum contrast Blocks mercury vapor, sodium vapor, and natural skyglow Ideal fo...

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CA$223.00 - CA$321.00
CA$223.00 - CA$321.00
CA$223.00 - CA$321.00
CA$223.00
Optolong Ha, OIII & SII 3nm Narrowband Filter Set
CA$1,344.00 - CA$1,679.00
CA$1,344.00 - CA$1,679.00
CA$1,344.00 - CA$1,679.00
CA$1,344.00

Optolong Ha, OIII & SII 3nm Narrowband Filter Set

Options available

Complete SHO set includes H-alpha, OIII, and SII filters Ultra-narrow 3nm bandpass for maximum contrast Isolates 656nm Ha and 500nm OIII emission ...

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CA$1,344.00 - CA$1,679.00
CA$1,344.00 - CA$1,679.00
CA$1,344.00 - CA$1,679.00
CA$1,344.00
Optolong OIII 3nm Narrowband Filter
CA$475.00 - CA$587.00
CA$475.00 - CA$587.00
CA$475.00 - CA$587.00
CA$475.00

Optolong OIII 3nm Narrowband Filter

Options available
1 variants in stock

3nm Spectral Bandpass 500nm Central Wavelength (OIII) Ion-Assisted Multi-Layer Coatings Optimized for Monochrome Cameras Available in 2" Mounted o...

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CA$475.00 - CA$587.00
CA$475.00 - CA$587.00
CA$475.00 - CA$587.00
CA$475.00
Optolong SII 3nm Narrowband Filter
CA$475.00 - CA$587.00
CA$475.00 - CA$587.00
CA$475.00 - CA$587.00
CA$475.00

Optolong SII 3nm Narrowband Filter

Options available
1 variants in stock

Isolates the Sulfur-II (SII) emission line for astrophotography Extremely narrow 3nm bandpass for maximum contrast Drastically reduces skyglow and...

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CA$475.00 - CA$587.00
CA$475.00 - CA$587.00
CA$475.00 - CA$587.00
CA$475.00
CA$474.00 - CA$586.00
CA$474.00 - CA$586.00
CA$474.00 - CA$586.00
CA$474.00

Optolong H-alpha 3nm Narrowband Filter

Options available
1 variants in stock

3nm Bandpass at 656nm Wavelength Maximizes Contrast for Emission Nebulae Extreme Rejection of Light Pollution and Skyglow Ion-Assisted, Anti-Refle...

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CA$474.00 - CA$586.00
CA$474.00 - CA$586.00
CA$474.00 - CA$586.00
CA$474.00