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3 members, 9 messages added in the last 7 days
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  • Re: Flat exposure

    Thanks Stan. I will do some investigating as suggested and repost as needed Regards Dave

    glibbins2003 20 hours ago
  • Re: Flat exposure

    also - a light leak can ruin flats (e.g. scattered light may be more intense in the light frame than the flat or visa versa).

    stan_ccd 1 day ago
  • Re: Flat exposure

    maybe 38k ADU is too high for that camera (esp if it is ABG) Or it may mean you are not subtracting the bias (or dark) from the flat or light frames. Or maybe

    stan_ccd 1 day ago
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Group Description

The CCD camera has revolutionized the art of astrophotography. This discussion group is for those who would like to learn how to take astrophotos. The group is moderated by the author of the book The New CCD Astronomy - Ron Wodaski.

The focus of this group is on providing detailed feedback for beginners and intermediate CCD imagers. You will find the information you need on how to focus, expose, and process images. There are hundreds of tips here on CCD imaging, as well as product reviews and answers to common questions. You can also post your images and get critiqued, or submit your suggestions so that others can learn from your experiences.

And if you just enjoy looking at the images of celestial objects, please feel free join us!

This group is designed more like a classroom and most other Yahoo groups. We have multiple teachers and many students. We ask that posts be polite, on topic, and that members take responsibility for their posts. That means that the group comes first - post facts, not opinions, so that others can learn.

Note: we have special requirements for commercial postings. A message from or on behalf of a commercial product or company must meet the following requirements:

It must be brief;
It must not be promotion or hyperbolic in tone;
It must not contain marketing materials;
It must link to a web page with additional details.

Ron Wodaski and co-moderators:

  • Mark de Regt
  • Randy Nulman
  • Mike Dodd

Group Information

  • 4400
  • Astrophotography
  • May 30, 2000
  • English

Group Settings

  • This is a restricted group.
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  • Listed in Yahoo Groups directory.
  • Membership requires approval.
  • Messages from new members require approval.
  • All members can post messages.

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