ASI071 Manual
17
7.
Cleaning
The camera is sealed and comes with an AR protect window to protect the sensor from dusts and
humidity. We don’t recommend customer to open the camera for cleaning. The dusts can be
removed by post processing with flat frame.
To see the dusts, you just need to set up your telescope and point it to a bright place. A Barlow is
required to see these dusts clearly. Then attach the camera and adjust the exposure to make sure
not overly exposed. You can see an image like below if it’s dirty.
The big dim spot on the image (at right) are the shadows of dusts on the protect window.
The very small but very dark spot in the image (at left) are the shadows of the dusts on the sensor.
Here is one introduction how to clean the sensor or protect window if needed.
Keep in mind that the sensor is an optical device and all precautions must be taken to prevent dust
or scratches on the input window. If there is dirt that doesn’t come off with the air pump, here are
the steps to clean it.
