From: Milton Aupperle <milton@outcastsoft.com>

Date: February 22, 2010 9:27:03 AM MST

To: Astro_IIDC@yahoogroups.com

Subject: Re: [Astro_IIDC] Color filter (Kodak Wratten 12 deep yellow-filter)

Dear Tobias;

On 22-Feb-10, at 3:32 AM, stuppt wrote:

Hi,

I need to take images with a deep yellow-filter (minus blue-filter; Wratten No. 12). I can put the filter in front of the camera which is a bit cumbersome.

M question: Is there a way to digitally simulate such filter with Astro IIDC, e.g. by playing with the color gain control?

You can adjust the R / B Controls and perhaps in some combination make the image yellow, but it isn't the same as using a real filter as far as color precission goes.

HTH..

Milton J. Aupperle