Quote:
Originally Posted by traveller
Thanks Al,
It's a toss up between the CLS CDD and the IDAS LPS P2 at the moment.
Bo
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Thanks Bo,
there's a good "mouse over picture here:
http://www.cwjames.info/astro/howto/...k_CLS-CCD.html
I used to image from a street with a whole row of sodium orange street lights.
If I just unscrewed the filter & looked down the street
it looked almost completely dark.
It's amazing as without the filter the sky noise was terrible.
You still need to take much more data than from a dark site
when using such a filter but you can get great results
from a light polluted location with nebulas.
Galaxies are however quite difficult without huge amounts of data.
cheers
Allan