Reply To: Impurities on the ccd sensor? › Forums › General Discussion › Impurities on the ccd sensor? › Reply To: Impurities on the ccd sensor? 5 March 2025 at 1:29 am #628614 David ArdittiParticipant Yes it is dirt somewhere in the optics near, but not on, the sensor. It seems to shift with the solar disk because it is casting a shadow on the sensor.
