Owing to a accident with my small grandson my Baader 36mm R, G, B, Lum, Ha and OIII filters have got mixed up. Can anyone please tell how I can work out which filter is which? Many thanks.
Hi Terry, Look through them, SII is a very deep red. http://www.baader-planetarium.de/sektion/s43e/bilder_filtersaetze/gross-t3-lrgbc-narrow-50x50.jpg http://www.baader-planetarium.de/sektion/s43e/bilder_filtersaetze/gross-t2-lrgbc-narrow-36.jpg