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Re: [APML] Light leak in the camera.




In a message dated 8/12/02 9:37:24 AM, ugly_411@sympatico.ca writes:

<< I have noticed a problem with the first succesful picture I took with my 
new R200-SS. The shot was a 20-minute of M8 on elite-chrome 200 processed at 
200 and turned out beautifully. Well... almost beautifully. Just above M8 
there is a bright blue curving streak of light that was a result of a light 
leak. The shot is such a nice shot that I don't want it to go to waste. Does 
any one know a method that I could use to get rid of this streak?

Sorry about not posting the image yet, but I haven't yet got it in digital 
format.

Wes
Astrophysics @ Mcmaster University. >>

Wes:
I haven't seen the image, but what you describe is probably not a light leak 
situation.
Bright blue streaks are sometimes caused by a bright star at the edge of or 
just outside the field of view. The bright light from the star is reflecting 
or bouncing off something on the walls of the optical system. This could be 
in the OTA but is most probably in the camera body. Check your photograph 
against a star chart of the area and see if there is a bright star just 
outside your image area.

This sort of reflection is difficult to prevent but can sometimes be seen in 
a camera viewfinder if one looks hard enough.

Kent Kirkley

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