astrophotography, we need Equatorial mount with tracking. I am wondering, can we use Alt-AZ mount to take some short exposure astrophotography? Like those Alt-Az tracking mount.
thank you.
Alt-Az mount for astrophotography
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weixing
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- Favourite scope: Vixen R200SS & Celestron 6" F5 Achro Refractor
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Hi,
Have a nice day.
It's possible... as long as star trail cause by field rotation don't appear in the single frame.I am wondering, can we use Alt-AZ mount to take some short exposure astrophotography? Like those Alt-Az tracking mount.
Have a nice day.
Yang Weixing
"The universe is composed mainly of hydrogen and ignorance."
"The universe is composed mainly of hydrogen and ignorance." 
Hi,
In my experience imaging with a LX200GPS 12" at f/10 with ST8 from Singapore:
- In alt-az: 30 seconds images work OK. Rotate the bunch and stack them with software such as CCDSoft.
- In alt-az + Meade field derotator: up to 1 minute per image. No more due to average tracking of the LX200.
- In alt-az + field derotator + SBIG AO-7: I have done 10 minutes per image.
This set up looks like this:
Exemple of 6 images, 10 minutes each, stacked:
http://www.singastro.org/album_picm.php?pic_id=615
Note also that for imaging planets, alt-az platform works very well.
Cheers
Jean-Yves
In my experience imaging with a LX200GPS 12" at f/10 with ST8 from Singapore:
- In alt-az: 30 seconds images work OK. Rotate the bunch and stack them with software such as CCDSoft.
- In alt-az + Meade field derotator: up to 1 minute per image. No more due to average tracking of the LX200.
- In alt-az + field derotator + SBIG AO-7: I have done 10 minutes per image.
This set up looks like this:
Exemple of 6 images, 10 minutes each, stacked:
http://www.singastro.org/album_picm.php?pic_id=615
Note also that for imaging planets, alt-az platform works very well.
Cheers
Jean-Yves