Altair TriBand is the new trend in light pollution filters for deep-sky imaging of emission nebulae with colour CMOS, CCD, and DSLR cameras.

Altair V2 Filter Technology produces even better blocking of unwanted wavelengths, higher transmission, and no halos. The result is a better signal to noise ratio for imaging emission nebulae with a DSLR or CMOS Astro camera.

The passband not only makes the TriBand V2 compatible with fast focal ratio lenses and telescopes, but also allows visual use with a medium size telescope in urban locations. Brighter emission nebulae can be observed in urban conditions with a darker background.

Filter Specifications: 

• 1st band, CWL495nm FWHM 34nm
• 2nd band, CWL 656nm FWHM 14nm
• 1.85mm thick optical glass with 30 arc sec parallelism.
• UVIR Block and Anti-Reflection Coating.