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658RE: [ccd-newastro] Ice Crystals

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  • Ron Wodaski
    Nov 1, 2000
      Those are almost certainly icing. There is a desiccant inside the camera
      that is used to dry the chamber where the chip is located. There is a large
      brass plug, removable from outside the camera, that contains the desiccant.
      You can remove the brass plug, bake it in an oven for several hours, cool
      it, and then replace it in the camera. Your camera should have come with a
      black plug, no desiccant, but you can put it in the camera to keep dust out
      of the chip chamber.

      You can get the specific details of the desiccant recharging process in the
      docs that came with your camera, or contact SBIG for any assistance you

      Ron Wodaski
      The New Astronomy Book Site - http://www.newastro.com

      -----Original Message-----
      From: Joe Marietta [mailto:jmarietta@...]
      Sent: Tuesday, October 31, 2000 7:43 PM
      To: ccd-newastro@egroups.com
      Subject: [ccd-newastro] Ice Crysals

      Hi Folks,
      I uploaded a file called "holes" for help. I have a new ST8E NABG
      that I have had
      for about 9 months, but am now just beginning to use it. Prior to
      use, it was stored in dry Pelican case.

      Now after a few nights of good service, I am now getting these holes
      in my images... are these or could they be ice crystals?


      1. Can a relatively new camera get these? Granted I have had the
      camera for 9 months, but it has be well stored and not exposed to the

      2. What do I do now?


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