Celestron T-Adapter for Canon Mirrorless, Rowe-Ackermann Schmidt Astrograph (RASA) 8Mirrorless cameras are spreading like wildfire in the astroimaging communityand for good reason. When paired with Celestrons groundbreaking 8 Rowe Ackermann Schmidt Astrograph (RASA), you can achieve spectacular deep sky astronomical images. So what makes a mirrorless camera the perfect match for RASA? First, the compact camera body provides minimal obstruction when placed on the front of the RASA optical tube. Second, the sensitive imaging chip helps