ASI Cameras User Guide
Cleaning
There is a protect window before the sensor in ASI120MM/MC, ASI034MC, ASI130MM camera.
It’s an AR-AR coated window before the mono camera.
It’s a IR-cut window before the color camera.
It’s better to clean a sensor at daytime. You just need to setup your telescope and point it to a
bright place. A Barlow is required to see these dusts clear. Then attach the camera and adjust the
exposure to make sure not over exposed. You can see an image like below if it’s dirty.
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