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Robotic flat panel: RBFocus eXcalibur

The RBFocus eXcalibur is a robotic flat panel used for astrophotography. It costs about $360 and attaches to the front of a telescope to open and close automatically. It includes a built-in light for capturing flat frames, which help clean up image data. Robotic flat panel: RBFocus eXcalibur T...