From: Milton Aupperle <milton@outcastsoft.com>

Date: January 22, 2007 10:38:07 PM MST

To: Astro_IIDC@yahoogroups.com

Subject: Re: [Astro_IIDC] Saturn Jan21st color question

Hi Jim;

What Camera settings were you using for the Color image (it would have been in with the movies you record as the log xxxx_yyyyy.txt file)?

The main ones your looking for are these:

Gamma:  1.00

Blue Gain: 80

Red Gain: 50

Brightness: 449

Black Point: 0

Exposure: xxx milliseconds

Also I don't believe the log indicates whether the Overdrive options was on either, so check that out too.

It looks like the Brightness and Black level and has been cranked up really high and once it's too bright it loses all color and is whitish You can also get a some of that effect if you shooting without an IR filter with a color camera too.

For color images darker is always better because once it gets saturated for brightness, the color is gone.

HTH..

Milton J. Aupperle

President

ASC - Aupperle Services and Contracting

Mac Software (Drivers, Components and Application) Specialist

#1005 - 815 14th Avenue. S.W.

Calgary Alberta Canada T2R0N5

1-(403)-229-9456

milton@outcastsoft.com

www.outcastsoft.com

On 22-Jan-07, at 9:37 PM, jimchung2338 wrote:

I was out on Sunday morning in the -14C cold imaging like a fiend since this is the second

clear night we've had in January.

http://tech.groups.yahoo.com/group/Astro_IIDC/files/Planetary/SaturnLRGBconstuct.jpg

I've learned a few more processing tricks that have improved my Saturn images but still

having trouble getting faithful colours, or any colors for that matter.

Luminance was 900 stacked of 4000 from PGR monochrome Flea 1024x???

Color was Unibrain Fire I 640x480  stacked 400 of 2000.  Can't seem to get much color data

from the Unibrain - wondered what the rest of you have been doing.

Jim