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Old 27-10-2004, 09:39 AM
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seeker372011 (Narayan)
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seeker372011 is offline
 
Join Date: Oct 2004
Location: Sydney
Posts: 3,663
Thanks for your comments, people, they are really helpful.

I probably should invest very soon in an IR filter-plan to get one from Perseu in Portugal, who make the Atik.

I will try the deconvolution in IRIS as you suggest and also check out PixinSight.

(I did download Iris the other day but havent yet explored its capabilities.)


Paul, the scope is alt azimuth and as far as I know can not be auto guided. It's really Meade's entry level scope -short tube-350 mm and small aperture (70mm) but I am just having fun trying to see what I can squeeze out of it.

Each exposure ranges from 10 to 15 seconds-the maximum the scope can track without terrible trailing. Even then I dump 60 % or more of images taken. I then stack about 20 to 30 of the best frames and process in photoshop.

What I could and probably should do is build a wedge and polar align the scope to see if that improves tracking. Longer exposure time coupled with an IR filter could combat some of the problems noticed in the shots above.

Since its a webcam, the only controls I have in K3CCD are pretty much length of exposure, gain-usually set at around 40%, brightness and contrast which I leave at defaults. I leave the white balance on "outdoor", that seeems to work best as recommended by Atik. Usually amp is off-to fight amp glow.

Once again thanks for your comments and suggestions
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