Question about Meade 8" LX90 LNT Schmidt Cassegrain Telescope with SmartFinder w/ FREE UPS
I recently started taking CCD pictures with modified web cam and picked up some particle spots in the frames (same spots on all pictures) I presume that its dust on the mirror of the scope. How do I fix this?
Nope, the dust is on the webcam sensor. The telescope mirror is too far away to influence the image. Most modified cameras have no window to keep dust off the sensor's cover. A camera lens cleaning brush works fine. Also, some cameras have 'hot pixels' that are defects in the sensor, and are permanent.
Posted on Jun 27, 2008
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Posted on Jan 02, 2017
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