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Old 28-10-2006, 09:32 AM
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avandonk
avandonk

avandonk is offline
 
Join Date: Aug 2005
Location: Melbourne
Posts: 4,786
After buying and using the GSTAR-EX camera with c-mount lenses and Canon lenses on a mogg adapter I was amazed at the sensitivity which is easily controlled by how many frames you integrate (1 to 128). There are other sensitivity controls, gain etc.
When I saw the widefield fisheyes on Eb.. I could not resist getting them as I immediately thought whole sky monitoring in real time. The pictures that made these animations were taken at F2.8. The lens goes down to F1.9! The other fisheye I have is F1.5!
At these apertures the light pollution starts to wash out the dimmer stars. At a dark sky site or with a light pollution filter (or both) I am sure that even dimmer meteor trails would be captured. Work is in progress to refine this capture system.
If you look carefully both Magellanic clouds are visible in the images even with light pollution. They were not easily visible with the naked eye when these pics were taken.
Anyway thanks David for the animations. I hope you all enjoyed the movies, beats staying up all night.

Bert
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