simply M13

[zetajanus]

Hello

This is my new picture of M13

It's the result of 18x2mins unguided (always!)

Material: C6N on Heq5 + Eos300D

Processing with Iris and photoshop

What do you think about my picture? How Can I improved the processing? How Can I process to further rendering?

[Psychobilly]

Nice detail all the way to the core great focus and tracking...and subtle colours...

Only need to tackle the gradient i'd say....

[Aza]

Looks like a great job to me.

For improvements I think you need to take some flats.

And then really just go for more subs.

Do you take darks too?

[zetajanus]

Yes 5 darks and 5 offset

But no flat...I know

How to do a flat easily ? I tried but the result was very bad...

[Aza]

I made a lightbox like this:

Light Box

Very simple and works very well.

Or if you use Photoshop you can try Gradient Exterminator.

It costs money but has a free trial:

GradientXTerminator

I use Gradient Exterminator even after using flats, its a great tool.

But really your first stop is to get your flats sorted!

[zetajanus]

Thanks you for your precious advice!

This is the result after GradientXTerminal

[MartinB]

OK, am I missing something, where's the simple bit! I'm looking on my work monitor which clips the dim bit so I can't see gradients and the like. But the lovely starry detail I can see looks great Really tight stars all the way through. Looks beautiful

[brendant]

Beautiful image, lovely detail to the core, set in a nice widefield.

Brendan

[Aza]

Martin, on the first image was quite a bit of vignetting.

Fixed lovely now, good job Zeta. Glad it worked for you.

Its an essential piece of software for me

[johnh]

You must be delighted with this one, good work. John

[Beyond_Vision]

Very nicely resolved and the second image has sorted out the background. Great image with the propellor showing up really well

Regards

Kevin

[MidnightSun]

Really a nice one there....

[Coco]

Thats a fabulous shot... The inner core is superb.

.

Guy

[Tim]

Very nice image there Zeta.

If you take 'proper' flats you will get even better results. I take mine with a white T-shirt stretched over the front of the telescope, against a twilight or dawn sky. It needs to be bright enough so that you can get short subs <1second, and try to get around 25 of them. I get good results with the histogram at about 1/3. You can use one of the presets on your camera if needs be.

2 mins unguided takes a bit of doing too! Nice going.

TJ

[zetajanus]

I have done a new processing of my picture with photoshop

What do you thinks about this ?