crux carina

[jjjnettie (Jeanette)]

Taken last night with the Canon Powershot.
28x10sec exposures stacked and processed in DeepSkyStacker.
This time at ISO 400. Noticably less grain compared to ISO 800.
I had finished taking the pics when I realised that I didn't set focus to infinity. Oh well.
I found that any other processing degraded the image. Is it a case of more is less?

[Ric]

Another nice one Jeanette, I think that this one has more detail than your other post.
A nice sharp widefield.

Cheers

[ving (David)]

that powersot seems like a good camera
nice shot jeanette!

[jjjnettie (Jeanette)]

Ric,
Having the ISO set to 400 helped a lot. ISO 800 is virtually useless in this camera.
I would be interesting to know to what mag the little camera is capturing.

[h0ughy (David)]

coal sack look good, nice imaging JJJ

[luka]

It is really amazing how much you can get done without any tracking at all. The imaging technology is moving forward quickly.

[jase (Jason)]

You've gotta be happy with that considering the camera specs. Very capable. Look forward to seeing more of your work JJJ.

[Ric]

Hi Jeanette, a quick comparison in Star Atlas Pro and I would estimate that you have got down to mag 11 and maybe a bit better.

Cheers

[Dr Nick (Nick)]

Nice pic!

[sheeny (Al)]

Cool! Well done jjj!

Al.

[Bassnut (Fred)]

Hi Jeanette

At the risk of reoffending, again, you dont do yourself justice. A simple curve adjustment in PS bought out lots more detail, now I can see the coal sack.

This is subjective of cause, you may not approve.

[Bassnut (Fred)]

Sorry, again with less noise. BTW, excellent pic, top guiding.

[jjjnettie (Jeanette)]

Thanks Fred, I was having trouble gleaning info out of the pic.
LOLOL Guiding? what's that? I just plonked the camera on the tripod and started snapping away.
Next time I'll try to stack more images and see what that will do. I've never tried using a dark frame to improve an image, guess that will be the next thing to learn.

[Bassnut (Fred)]

Get familiar with Photoshop Jeanette. Yes darks will give a marked improvement, but most of all in your case, processing in PS is a top task.

[jjjnettie (Jeanette)]

I use PaintShop Pro. It has some pretty good functions.
Otherwise I use Irfanview, which takes the adobe plugins.
The only adjustments I made on these wide fields was from within the DeepSkyStacker program.

[Ingo]

May I ask what focal length that was at?

Excellent picture for that camera

[jjjnettie (Jeanette)]

Here's the info about the photo.
If there is anything I should change, let me know. I left white balance on auto, would it help to change that?
Camera Model Name Canon PowerShot S3 IS
Shooting Date/Time 6/21/2007 8:08:46 PM
Shooting Mode Manual
Tv (Shutter Speed) 10
Av (Aperture Value) 2.7
Light Metering Evaluative
ISO Speed 400
Lens 6.0 - 72.0 mm
Focal Length 6.0 mm
Digital Zoom None
Image Size 1600x1200
Image Quality Superfine
White Balance Auto
Drive Mode Self-timer Operation

[Ingo]

6mm? Haha.

I only have like 37mm minimum