Feature

●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.


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 Hydrogen Alpha emission line is a bonus for this design.