Re: [APML] Multigrade filters: Any good for astro-pics?

[Jerry Lodriguss <jml@astropix.com>]

>Was wondering if the Agfa, Kodak or Ilford Multigrade filters as used for
>darkroom photo printing images, be any good for astro imaging ? Any one used
>them before? and what was the results?



>Jim:
>The filters you mention were (are) used to change the contrast grade of
>multigrade black & white printing papers. They are usually a range of
>different density magenta filters that are placed in the light path while
>printing with an enlarger.
>
>I can't imagine what use they would have in astro-photography.


The only thing I can think of would be if he had green light pollution from 
Mercury vapor lights, the magenta filter could be used to correct it.

But it is so easy to do that in PS, it's really not worth it.

Jerry

Astronomical photography: http://www.astropix.com




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