From: "Milton Aupperle" <milton@outcastsoft.com>

Date: May 3, 2006 12:43:56 PM MDT

To: Astro_IIDC@yahoogroups.com

Subject: Re: Jupiter May 3, 2006

Hi Jim;

Nice image sequence with such a small scope.

The lower image is not actually squahed. If you adjust the brightness

of the top image to match the lower in say photoshop or KSI, you

should see the same effect. Jupiters edges drop off in brightness

pretty rapidly.

The CCD Over Drive makes about a 50% increase in image brightness and

also changes the color balance too. I find it increases the red and

green channels more than the blue, so one has to compensate for it.

But as you pointed out, it also increases the amount of noise too so

it's not exactly a "free" gift.

Thanks for sharing..

Milton Aupperle

--- In Astro_IIDC@yahoogroups.com, "jimchung2338" <jim_chung@...> wrote:

Hi All,

Just wanted to share my imaging results of Jupiter through my 3 inch

TV refractor.

The interesting thing is that I actually get better results enabling

the CCD overdrive option in 

AstroIIDC's preferences panel despite the extra noise this feature

produces.

It not only allows me to image at 7.5 fps which is essential in

capturing the fast moving 

Jupiter features but both the color fidelity and image appearance is

better.

For some reason the normal image of Jupiter appears squashed  but

surface details might be 

somewhat better due to reduced noise.

Comments as to why are welcome.

Jim