Astromania 2" Narrowband Nebula Red Filter

The filter is an Ultra High Contrast type of filter that is very effective for small and fainter emission and planetary nebula and a variety of bright nebula, especially through larger scopes. Another nice feature of the filter is the very natural coloration yielded by this UHC type filter. Star images retain a much more natural color, in addition to pinpoint star images. High transmission at the 656.3nm Hydrogen Alpha emission line is a bonus for this design.

• This Optics custom designed filter is well suited for a variety of telescopes and objects
• The design yields a filter with a very symmetrical shape and high optical throughput, for maximum enhancement of nebula with a minimum of loss of stars in the field of view
• The high optical quality of the Astromania filters guarantees no loss in sharpness or contrast
• Have extremely high transmissions while completely rejecting light pollution as well as the important blocking of longer wavelengths
• Filter made from high-grade glass with dichroic interference and antireflection coatings