Jupiter 8/08/08

[Kal]

I went out and captured about a dozen clips of Jupiter tonight. Here is one that I have processed with the GRS just rising out of the left limb.

I had some 'onion rings' because I only saturated to ~150 on K3CCD. If I put the gain up 1 stop then it was overexposed, and I didn't want to decrease my exposure time and add even more gain. I used magic wand and gaussian blur to partially hide this.

C11 + 2.5x powermate + the 840K toucam that I firmware modified to a 900NC last night.

[IanL]

Very nice Andrew!
Look forward to seeing the others.
Ian

[Kal]

Here is another pic from later in the run. I processed this in a different way to try to minimise the rings.

[Kal]

Thanks Ian. I'll process some more over the weenend and post them if they are worthwhile.

[iceman]

Nice work Andrew, good colours.

[Kal]

Thanks Mike. On all my previous toucam imaging I had used the 'outdoor' setting for colour balance, and I always had to adjust the colours afterwards. Tonight I just set it on 'auto' and the colours came out much better looking, I didn't even need to modify them.

[Chippy]

That is a superb Joop Andrew!!!

[Jen]

NICE PICS :thumbsup:

[Kal]

Thanks Nick and Jen :thumbsup:

I've spent the morning looking for software that allows me better control over my sliders so I can adjust my exposure/gain to get better saturation control. I found Wcctrl (http://www.burri-web.org/bm98/soft/wcctrl/) so I've installed that, I'll see if it makes a difference next time.

[Deeno]

Exellent capture Kal.
Pretty good seeing last night!

[cookie8]

Very nice Andrew. Pleasing colour and lots of detail. I will be laughing if I could manage the same. Still waiting for a EQ platform......:rolleyes:

[Kal]

Thanks Deeno and Vincent

I processed another video, taken just after the first image I posted. I processed it in the same way as I processed my second image however - no waveletts at all in any part of my processing. I have stacked the frames in registax and saved with no waveletts, and then run a LR deconvolution in AstraImage on each of the red, green, and blue frames before combining the 3 colour panes and running a second pass LR deconvolution on the final colour image.

[netwolf]

Nice pics Andrew, the colors look good. The central part looks a little over exposred. Why no wavelets? i find the settings Mike has given in his tute often are enough to bring out some of the finer details.
I also like the image scale you achieved at 2.5x with the C11.

Regards

[Kal]

Hi Fahim,

The first picture I posted I did use wavelets, Mikes settings actually (I have them saved as 'iceman settings' :) ) but I found that by not doing the wavelets and just running the deconvolution in AstraImage I seemed to get less onion ringing, as shown in my second and third pics. I believe that this is because I underexposed the frames, I only saturated to 150 in K3CCD instead of the recommended 220 or so. As for why it appears overexposed in my final image, I don't know why, it seems to come up bright after I stack them in registax. Maybe I have a setting wrong there? :shrug:

[AlexN]

Nice set of Jupiters Andrew.

I also use the auto white balance on the ToUcam and find that I rarely have to touch the color balance...

As for the image coming up bright after stacking, theres a check box in the top panel of the stack tab in Registax, "Stretch histogram after stacking", Its likely you have this checked...

The seeing in sydney last night was obviously brilliant compared to brisbane..

Well done mate.

[netwolf]

Andrew, here is what i turned out with the RGB stacked frames you sent me. The Red and Green channels are quiet good but the Blue was not so good. Seems to be a ghosted frame in the blue

[Kal]

Thank you Alex, this is exactly what it was. Took me some time to find it as there was a seperate checkbox that says something about 'tick to stretch tiff' which I had unticked but it made no difference.

I will have to go back and reprocess all of my images now!

[AlexN]

:) Glad to have helped.

[Kal]

Here is one from the middle of my run processed without the 'histogram stretch' after stacking. The colours are all different now, but the equatorial region is not burnt out.

[AlexN]

Wow... the stretch was sure killing alot of good detail :thumbsup:

[netwolf]

Big difference there, lot more finner details comming out now. The stretch tends to increase the color but at the cost of finer detail being over exposed.

[Kal]

I've finished processing them all, and I have made a bit of a flash animation from a few of the frames, on my googlepages gallery

http://astroandrew.googlepages.com/jupiter2008