These Baader LRGBC CCD 1-1/4" Filters are perfect addition to your astrophotography set-up to deliver extremely high contrast images without halos, reflections, or ghosting. The narrow bandwidths for this set of filters ensures that your images don't lose any sharpness or contrast.
These filters are able to effectively separate the important H-Beta and O-III lines, which is unheard of for any other RGB filter set! The Blue filter passes nearly all of the H-Beta lines, while the Green filter captures all of the O-III line without encroaching into the H-Beta line. This results in O-III being accurately represented in a teal (blue/green) color and H-Beta is captured solely in the Blue.
Baader employs a high quality polishing system that delivers a smooth, precise 1/4 wavefront over the entire filter. This ensures that you will not lose any sharpness or contrast in your images!
You will no longer suffer from dealing the reflections that are standard in other narrowband astro-filters due to Baader's careful design and testing of the filter coating stacks. The coatings are masterfully applied by equipment that ensures high consistency for bandpass centering, transmission, and out of band blocking. The coatings won't have any degradation due to use or normal cleaning due to the ultra-hard ionbeam deposition in the coating process.