NGC 7023 - Iris Nebula

[tommy_h]

Hi

Here is my first attempt with my new Canon 6D (not modified).

About 15 hours exposure time, gathered between June and August

Scope: ASA 10" Astrograph, ASA 3" Wynne-Corrector

Mount: ASA DDM60 

Camera controlling with APT (Astro Photography Tool)

Image Processing with Theli, Fitswork, PixInsight and Photoshop

Higher resolution (up to 75%): http://www.distant-lights.at/ngc7023-2013_06_17.htm

Thanks for looking

Thomas

[iksose7]

Thanks for sharing Tommy, thats one awesome looking Iris!

[nmoushon]

Thats a very well done image! I can't believe you got that with a DSLR! You were really able to control and keep the noise down and still pull a lot of detail out. Is your camera in a cooling box?

[swag72]

What a super image!! Beautiful star colour and detail - For a DSLR this is awesome - Well done

[gingergeek]

Brilliant

[Epicycle]

That's indeed an awesome Iris! I'm working on one at the moment, but this puts my current version (with ccd) to shame, but I do need more time on the L...

[Daniel-K]

 

[laser_jock99]

Stunning shot- thanks for posting. A classy example of what a DSLR can do in the right hands.

[ollypenrice]

Utterly superb. The unmodded camera has cost you the hints of red that lurk near the centre of the Iris, I suspect, but the dust is absolutely stunning and the processing beautiful. At very fast F ratios, as here, DSLRs do take on the CCDs. You also have a mind bending depth of data, considering the F ratio. And  of course, it shows.

Magnificent. Yes indeed.

Olly

[ArmyAirForce]

What exposure length were you using for the subs, and what ISO?

[lensman57]

Awsome capture,even for a CCD never mind a DSLR. what was your settings and how many subs did you use?

I have just read the data, 15 hours and 40 minutes,  just Grand.

A.G

[tommy_h]

Thank you all for your nice comments!

The camera was not cooled!

I have made 40x15min subframes at ISO 200 and 34x10min subframes at ISO 400. 

Most of the frames were taken at very high temperatures (exif temperature 30-33 degrees Celsius) and shows a lot of noise. Due to the large amount of frames stacking removed most of the noise.

Of course the red shimmer in the center is lacking but there are many CCD images which does not show it.

I'm thinking about modifying the 6D, but for daylight photography a unmodded camera would be better.

[lensman57]

Thank you all for your nice comments!

The camera was not cooled!

I have made 40x15min subframes at ISO 200 and 34x10min subframes at ISO 400. 

Most of the frames were taken at very high temperatures (exif temperature 30-33 degrees Celsius) and shows a lot of noise. Due to the large amount of frames stacking removed most of the noise.

Of course the red shimmer in the center is lacking but there are many CCD images which does not show it.

I'm thinking about modifying the 6D, but for daylight photography a unmodded camera would be better.

Hi,

I have a Baader modified Canon 1000d which auto focuses with my Canon lenses. The colour balance  has shifted towards the red but if you shoot RAW rather than jpeg this should not matter as it can be corrected post process or use a custom white balance. May I ask what software did you use for aligning the subs from the sessions and how you processed this please?

A.G

[tommy_h]

Hi

I have a Baader modified Canon 1000d which auto focuses with my Canon lenses. The colour balance  has shifted towards the red but if you shoot RAW rather than jpeg this should not matter as it can be corrected post process or use a custom white balance. May I ask what software did you use for aligning the subs from the sessions and how you processed this please?

I know, I have a modified Canon 500D too. Nevertheless the images of a modified camera with custom white balance and a unmodified camera are not the same.

For data calibration and stacking I use Theli, for combining the RGB-channels Fitswork and for image processing Pixinsight and Photoshop.

[symesie04]

That is fabulous. Beautiful star colour and so sharp as well. Cracking stuff.

[dave_galera]

Thomas that's stunning, and I like all the very yummy dust.

Its already been said above, but for a DSLR it is a credit to you and the total exposure time has paid you back well.

You can't have too much data.

Dave

[symesie04]

I just keep coming back to this image. The colour and sharpness of those stars is just so utterly scrummy!

[Velvet]

DSLR  well done

[andyo]

superb image the amount of dark nebula you have captured is amazing

[Jannis]

Wow, absolutly stunning!

[tommy_h]

Thanks everybody for the feedback!

[carastro]

My goodness, that is indeed an excellent image with a DSLR, you must have a very dark site. 

Carole

[wxsatuser]

Missed this one some how.

Cannot add much to what has been said........just brilliant. :icon_salut:

[russellhq]

Hi Tommy, great image! I see that you used Fitswork for part of the processing. I've just started using it and really like it but have not found a lot of guides (in English). Were you able to find any useful guides that helped you use the software?

[tommy_h]

Thanks for your comments!

@Carole: Light pollution is low, so the conditions are not bad, but not perfect

@russel: most of the guides or tutorials of Fitswork were in German, maybe Google translator helps. I have found only one in English (I think you have found it too): http://intervalometer.appspot.com/Fitswork.jsp

But even in the German guides most of the functions were explained sparsely. Try and error is required.

CS

Thomas