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682RE: [ccd-newastro] Ice Crystals

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  • Joe Marietta
    Nov 1, 2000
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      Thanks again Ron,
      Will I be able to tell if the O-ring is crimped. I have never opened that camber before.
      Joe


      *********** REPLY SEPARATOR ***********

      On 11/1/00 at 8:19 AM Ron Wodaski wrote:

      >That can happen. Once you condense out the moisture, it seems to stay away
      >for a while. Not sure why that would be, but that was my experience when I
      >had that crimped o-ring.
      >
      >Ron Wodaski
      >The New Astronomy Book Site - http://www.newastro.com
      >
      >
      >
      >-----Original Message-----
      >From: Joe Marietta [mailto:jmarietta@...]
      >Sent: Wednesday, November 01, 2000 12:45 AM
      >To: ccd-newastro@egroups.com
      >Subject: RE: [ccd-newastro] Ice Crystals
      >
      >
      >Thanks Ron,
      >I had a hunch those were crystals. Funny thing, after I raised the camera to
      >ambient temp, then waited for the frost and crystals to leave, it worked
      >great all night for the next 8 hrs.
      >
      >Joe
      >
      >
      >*********** REPLY SEPARATOR ***********
      >
      >On 11/1/00 at 12:09 AM Ron Wodaski wrote:
      >
      >>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
      >>require.
      >>
      >>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?
      >>
      >>Questions:
      >>
      >>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
      >>enviornment
      >>
      >>2. What do I do now?
      >>
      >>Thanks
      >>Joe
      >>
      >>
      >>
      >>
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      >
      >Joseph Marietta
      >jmarietta@...
      >http://www.astrodoc.com
      >
      >
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      Joseph Marietta
      jmarietta@...
      http://www.astrodoc.com
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