CELESTRON Ha, Hb & OIII IMAGING FILTER FOR RASA 8 DSLR to CCD/CMOS Note: in order to use

Note: in order to use common imaging systems which have an M54 x 0

25” T-Mount

matte black finish

0x flattener for Ritchey-Chretien telescopes is compatible with GSO and other RC telescopes with a focal ratio of f/6 to f/9 and a 2" focuser barrel

CELESTRON Ha, Hb & OIII IMAGING FILTER FOR RASA 8 DSLR to CCD/CMOS Note: in order to useThe Celestron H alpha, H beta & OIII imaging filter for the RASA 8" allows high transmission of light from emission nebulae while blocking light pollution, helping to make your images pop with detail off the black sky background with superior contrast. Fortunately, many sources of light pollution have relatively discreet emission spectra; they emit primarily at specific wavelengths of light. By strategically blocking these bad wavelengths, the filter