Narrow Band Filters

Narrow Band Filters

For capturing faint emission nebulae or deep-sky targets in light-polluted skies, Optolong narrow-band filters isolate key spectral lines like H-alpha, OIII, and SII to dramatically boost contrast and suppress skyglow. Whether you’re using a monochrome CCD, cooled astro camera, or modified DSLR, these filters help reveal delicate nebular structures that broadband simply misses — making subtle clouds and details pop in your final images. If your goal is maximal clarity and signal-to-noise under challenging skies, narrow-band filters are a foundational part of any serious deep-sky imaging kit.

25 products

Showing 1 - 24 of 25 products

Showing 1 - 24 of 25 products
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Optolong Night Sky H-Alpha filterOptolong Night Sky H-Alpha filter
Optolong IR Pass 685nm 1.25"
Optolong OIII 6.5nm 2" FilterOptolong OIII 6.5nm 2" Filter
Save $104.00
Explore Scientific 2-inch hydrogen-alpha 7nm narrowband nebula filter shown face on, coated glass in a black threaded 2-inch cellAngled view of the Explore Scientific 2-inch hydrogen-alpha 7nm nebula filter showing the cell and its 2-inch filter threads
Save $104.00
Explore Scientific 2-inch hydrogen-alpha 12nm narrowband nebula filter shown face on, coated glass in a black threaded 2-inch cellAngled view of the Explore Scientific 2-inch hydrogen-alpha 12nm nebula filter showing the cell and its 2-inch filter threads
Save $118.00
Explore Scientific 2-inch S-II 6.5nm narrowband nebula filter shown face on, coated glass in a black threaded 2-inch cellAngled view of the Explore Scientific 2-inch S-II 6.5nm nebula filter showing the cell depth and its 2-inch filter threads
Save $97.00
Explore Scientific 2-inch S-II 12nm narrowband nebula filter shown face on, the coated glass held in a black threaded 2-inch cellAngled view of the Explore Scientific 2-inch S-II 12nm nebula filter showing the depth of the cell and its 2-inch threads
Save $67.00
Explore Scientific 1.25-inch hydrogen-alpha 12nm narrowband nebula filter shown face on, the coated glass mounted in a black threaded cellAngled view of the Explore Scientific 1.25-inch hydrogen-alpha 12nm nebula filter showing the cell and its 1.25-inch threads
Save $83.00
Explore Scientific 1.25-inch S-II 6.5nm narrowband nebula filter seen face on, showing the coated glass in its black threaded cellAngled view of the Explore Scientific 1.25-inch S-II 6.5nm nebula filter showing the mounted cell and its 1.25-inch filter threads
Save $42.00
Explore Scientific 1.25-inch S-II 12nm narrowband nebula filter shown face on, the coated glass held in a black threaded metal cellThe Explore Scientific 1.25-inch S-II 12nm nebula filter viewed from another angle, showing the depth of the mounted cell and its filter threads
Optolong Night Sky H-Alpha filter 2"Optolong Night Sky H-Alpha filter 2"
Optolong IR Pass 685nm 2"
Optolong SHO-3nm narrowband filters kit 2"Optolong SHO-3nm narrowband filters kit 2"
Optolong SHO-3nm narrowband filters kit 36mmOptolong SHO-3nm narrowband filters kit 36mm
OPTOLONG 36mm" H-ALPHA 7nm FILTEROPTOLONG 36mm" H-ALPHA 7nm FILTER
OPTOLONG 2" H-ALPHA 7nm FILTEROPTOLONG 2" H-ALPHA 7nm FILTER
OPTOLONG 1.25" H-ALPHA 7nm FILTEROPTOLONG 1.25" H-ALPHA 7nm FILTER
Optolong SII 6.5nm 36mm FilterOptolong SII 6.5nm 36mm Filter
Optolong SII 6.5nm 1.25" filterOptolong SII 6.5nm 1.25" filter
Optolong OIII 6.5nm 36mm filterOptolong OIII 6.5nm 36mm filter
Optolong OIII 6.5nm 1.25" FilterOptolong OIII 6.5nm 1.25" Filter
Optolong SII 6.5nm 2" filterOptolong SII 6.5nm 2" filter
SHO 36mm"  Narrowband Filter KitSHO 36mm"  Narrowband Filter Kit
SHO 2"  Narrowband Filter KitSHO 2"  Narrowband Filter Kit

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