From: Phil Houston <pkh111@knology.net>

Date: March 21, 2007 1:52:15 PM MDT

To: Astro_IIDC@yahoogroups.com

Subject: Re: [Astro_IIDC] Saturn March 20!

Jim,

If there is a tool in ps to do what you describe I have not found it yet.  I just use the Info window and Color Sampler Tool to monitor the Actual Color RGB  values until they are close to being equal by adjusting each color using Levels or Color Balance.  Apple's Preview program has a simple and effective color balancing adjustment also.

I too would be willing to take a stab at your original RG&B files if you care to post them.

Phil

On Mar 21, 2007, at 12:04 PM, jimchung2338 wrote:

Thanks for everyone's helpful responses from yesterday! Last night the greater Toronto area
experienced good skies and I think it helped my imaging of Saturn:

SaturnLRGBMar20.jpg in the Planetary folder

Alan: Hope you were able to image last night, Buffalo probably had similarly good skies

Tim: I am luckily using dichroic RGB filters that came with this budget priced Apogee filter
wheel - don't know if it's worthwhile spending more on name brand filters?

Phil: I generally use an IR blocking filter upstream of the flip mirror to avoid and color
imbalance. I've also been balancing my colors by making the rings as white as possible, is
there a PS tool that allows you to designate an area a certain color and then auto adjust the
other areas relative to that one?

Jim