I have been having some problems lately with my SLR camera and taking moon pictures. There seems to be two moons. The real one is very bright, while there is a smaller dim one below it. Im sure there is a filter out there that I can use to get rid of this, but I am just curious as to what kind, and where to get one. I assume it would be a polarizing filter? Also, are there some that I could use to block out some of the light pollution in my photos? I travel over 2 hours out of Oklahoma City to get to dark skies, only to have my pictures ruined by what little light seeps out of the city from there. Any help would be greatly appreciated.


-Wes

This sounds like an internal reflection showing up.

Can you do something like make the aperature smaller to cut down on the amount of light the camera chip is getting.

Even putting somtthing in front to block some of the light may be needed.

A polarizing or lunar filter (same thing will cut down on the imcoming light.

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It sounds like an internal reflection to me also.

Using a broadband LPR filter such as the Orion SkyGlow or Lumicon Deep Sky filter will enhance photographs of nebulae and may help a bit with light pollution in general at the expense of longer exposure times.

http://www.astrocruise.com/astroexp.htm

Dave Mitsky

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