Celestron Light Pollution Imaging Filter for Rowe-Ackermann Schmidt Astrograph 11 TelescopeGet the most out of your Celestron Rowe Ackermann Schmidt Astrograph (RASA) 11 Telescope, even under light polluted skies, with this Light Pollution Imaging Filter, custom designed for the RASA. No matter which camera you use, this filters generous 68mm clear aperture allows it to easily accommodate todays largest sensors. Utilizing a machined aluminum housing and Schott B270 glass, the filter replaces the RASAs clear optical window so its optical
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