Fine details on planets and the Moon can be enhanced by viewing through
colored filters. Colored filters can increase contrast between
bordering regions of the Moon or planets by lightening one area color
while darkening neighboring areas. Colored filters also are able to
reduce irradiation, which is the deformation of a boundary between a
light and dark region on a planetary or lunar surface.
Finally, a variable planetary, lunar and terrestrial filter wheel with
a spectrum of multiple colors! Forget the aggravation of having to
change filters several times during a viewing session. No more
dropping, damaging or losing filters in the dark. This amazing filter
simply fits into any 1.25in. telescope eyepiece holder. Includes a
built-in 2X Barlow lens and color indicator window.
PLEASE NOTE! This filter is not a solar filter. This filter is
not to be used to view the Sun by the human eye.