SII 672.4 nm / H-alpha 656.3 nm / OIII 500.7 nm / Luminance / Red / Green / Blue
Band count
7 bands
Specifications
Narrowest bandpass
7 nm
Use
Camera use
Mono astronomy cameras
Astrophotography Fit
Best for building natural-color broadband data with a monochrome camera.
Optolong LRGB + SHO 1.25" Imaging Mounted 7 Filter Set is a midrange LRGB/RGB filter set (1.25").
Best for building natural-color broadband data with a monochrome camera.
Choose filter size around the sensor diagonal, telescope speed, and filter-wheel or drawer geometry. Flats are still required; a filter can improve contrast, but it will not rescue tilt, bad focus, or poor calibration.
Best paired with
Monochrome cooled cameras and electronic filter wheels
Broadband galaxies, clusters, reflection nebulae, and star fields
Dark-sky sites or well-calibrated light-polluted workflows
Not recommended for
One-shot color cameras where LRGB adds complexity without benefit
Heavy light pollution without enough total integration
Emission-only projects where narrowband filters are the priority
Where To Buy
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