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M13 : First Stacking Attempt from AP Newbie

coxy322

By coxy322
in Imaging - Deep Sky

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coxy322

coxy322

Posted
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Hello.

Further to my Ring Nebula (first attempt) I have now attempted the M13 Globular in Hercules. This is my first attempt at stacking images. I took 25x 30 seconds in all to make this.

Stacked in Deep Sky Stacker and processed slightly in GIMP2. Any advice or pointers - I am quite impressed with the detail that comes out when you stack (am just getting over the honeymoon period of just snapping like mad at everything!).

7118601121_7ba8435343_b_d.jpg

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Spikey

Spikey

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Just had another thought Coxy, but I'm not sure how you do this on GIMP.

The colour balance is slightly in the Red so if you can knock that back a bit. In PS it's colour balance set to shadows and moving the slider from Red > Cyan a short way until it looks better.

That tends to lose a bit of the colour so I then knock the saturation up a little bit more.

I'll give it a quick go on your image in PS so you can see what I mean then you can do the same in GIMP.

Flats will take care of the vignet.

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coxy322

coxy322

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Just had another thought Coxy, but I'm not sure how you do this on GIMP.

The colour balance is slightly in the Red so if you can knock that back a bit. In PS it's colour balance set to shadows and moving the slider from Red > Cyan a short way until it looks better.

That tends to lose a bit of the colour so I then knock the saturation up a little bit more.

I'll give it a quick go on your image in PS so you can see what I mean then you can do the same in GIMP.

Flats will take care of the vignet.

[ATTACH]85906[/ATTACH]

That does look better, Spikey. Darker but not with any compromise on the star colour. I assume you mean PhotoShop... don't have that (yet) - am just learning the basics at the moment with free software.

Thanks for the positive remarks guys.

Ash

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coxy322

coxy322

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I'll soon figure it out - am sure given the amount to learn here! I will perhaps post up a blog on my journey from astrophotography novice to amateur once I start getting some better and consistent results that I am more confident with.

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Jessun

Jessun

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Great stuff there! I wish I had that focus just once...

Look out for red or greens to take over a bit - it happens quite often I find. It's relatively easy to adjust though.

Flats are a must really. Of all calibration images a master flat is like your ace of spades!

In terms of processing, well, so much out there! I have used loads of different ones only to finally land on PS, but I do think that Paint Shop Pro represents most bang for the bucks! And even the Canon program is actually great for initial stretching, colour balance and a bit of general tinkering.

I think your images are really good, and I'd predict that one of these days you'll download PS!!

Below I ran your image through the Gradient Xterminator plug in for PS to ditch all that red. Then I followed MartinB's tutorial for selecting the stars only just to give them a boost just for fun!

Looking forward to more of your work!

post-28991-13387776839_thumb.jpg

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