Quote:
Originally Posted by xelasnave
Peter
I found a baffled long dew tube helped greatly...see my reply in Equipment Discussions..thread "Light Scatter"...
Try a piece of rolled up cardboard say 2 foot painted black inside to give you an idea of the effect..if it seems to work make a tube of greater diameter and put in baffles...I sincerely believe it works but have no before and after shots to illustrate my presumed effectiveness...
Also I like to cover the camera and focuser with some black cloth just in case there is a "light" leak.
Alex
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I have a soft dew shield for a C-11 that fits my GSO 10" and even under Bortle 2 skies the improvement in contrast is visually apparent. I throw a speaker magnet on the bottom of the tube to fix balance. However I leave it off on windy nights - I observe on a hill with little cover.