P r i m a L u c e L a b S . p . A .
E A G L E C O R E U s e r M a n u a l
When we add many images of the same object, we increase the signal/noise ratio and thus improve the visibility of
deep-sky objects. Look at this comparison of the single image of M31 shot with Canon EOS 7D, 200mm f/4 lens
and EAGLE CORE: on the left the single 300 seconds image, on the right the sum of 6 images, 300 seconds each,
for a total exposition time of 1800 seconds.
In the image you can better see the whole body of the galaxy and the image noise is also lower (since when we
add more images, the noise which is random is mediated). Saved images will then be processed with a special
astrophotography software. There are many softwares to do this but, for starters, we recommend the free DSS (find
a guide on how to process the images at
https://www.primalucelab.com/astronomy/blog/deep-sky-stacker/
in our
site).
If we have made a proper polar alignment of the mount and, in the case of capturing images with long exposition
times, we started the autoguide, we will be reasonably certain that all images will be properly tracked for the
duration of the capture sequence. We can begin to record images with EAGLE CORE!
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