Filters H-Beta CMOS Narrowband 2"

The frame allows the filter to be attached to a connector, a filter holder or in the housing of a camera.

A standard measurement for accessories, expressed as 2 inches. 2" is equal to 50.8 millimetres.

The optical elements are treated with ultra-thin coatings. Among others, there are anti-reflective coatings for reducing, and dielectric coatings for increasing reflection.

No matter whether they are for observing or for astrophotography, filters are very important accessories.

Line filter with 6.5 nanometre full width at half maximum