For All Things Astro
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Colour filters enhance planetary imaging. Every refractive system, (lenses, correctors, eyepieces etc.) produce Chromatic Focal Shift: The different colours focus on different planes. By isolating one colour more detail will become apparent. Always use a contrasting colour to what you are observing; brightness is not an issue with planets.
Set(4) 2" Filters 2-#11,21,80A,ND25
