Astromania 1.25" Narrowband Nebula Red Filter

Product description ：

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 H ydrogen Alpha emission line is a bonus for this design.

Specifications：

♦ 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.