23274Re: What the heck....a donut near M81?
- Feb 2, 2004--- In firstname.lastname@example.org, "Wodaski - Yahoo" <yahoo@w...>
> A strong possibility: you have an IR source that is reflecting offof that
> filter.Just try shooting a 10 sec light with the aperture covered and
everything else covered up as you normally do. Do it with light
outside and see if you have any leaks. If that "dark" doesn't look
clean, you will never have a good flat.
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