Thread: Are filters (coloured) worth it
View Single Post
  #5  
Old 26-01-2019, 04:41 PM
astro744
Registered User

astro744 is offline 		 
Join Date: Apr 2007
Posts: 1,244
Yes, for the serious planetary observer wanting to identify different coloured features by enhancing contrast at different wavelengths, they are worth it.

See http://alpo-astronomy.org/mars/articles/FILTERS1.HTM
Reply With Quote