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Astrophotography and Sketching >> DSLR & Digital Camera Astro Imaging & Processing

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bluedandelion
Carpal Tunnel
*****

Reged: 08/17/07

Loc: Hazy Hollow, Western WA
M81 and M82 new
      #5658993 - 02/02/13 10:05 PM

M81 and M82 imaged with a modified Canon 350D and an SV856 at f/7 from Table Mountain, WA. No filters were used. Exposure was 5 mins x 24 for a total of two hours at ISO 800. This is the full scale center crop. Processed with Pixinsight.



Full scale image on Flickr.

Thanks for looking.

Ajay


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zerro1
Postmaster
*****

Reged: 08/02/09

Loc: Smokey Point , 48.12°N 122.25...
Re: M81 and M82 [Re: bluedandelion]
      #5659077 - 02/02/13 10:59 PM

Sweet Image Ajay!

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bluedandelion
Carpal Tunnel
*****

Reged: 08/17/07

Loc: Hazy Hollow, Western WA
Re: M81 and M82 new [Re: zerro1]
      #5659123 - 02/02/13 11:32 PM

Thank you, Robert.

Ajay


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carlstronomy
super member


Reged: 06/03/12

Loc: Brisbane, QLD, Australia
Re: M81 and M82 new [Re: bluedandelion]
      #5659130 - 02/02/13 11:37 PM

Nice image Ajay, very well processed and nice and clear. I personally like the natural looks not the oversaturated, which is what you have here, very nice for 2 hours of data.

Clear Skies (comma in the right spot I think but is still reads wrong)

Carl

Edited by carlstronomy (02/03/13 12:03 AM)


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bluedandelion
Carpal Tunnel
*****

Reged: 08/17/07

Loc: Hazy Hollow, Western WA
Re: M81 and M82 new [Re: carlstronomy]
      #5659152 - 02/02/13 11:58 PM

Thank you Carl. Appreciate the compliment.

On saturation: Agree that it is enhanced but I beg to differ that it is overly so. I tried to bring out the H-alpha regions a bit. If you look at M81 it is not uncommon to see those colors. I was surprised that M82 came out the way it did, but I like it. To each his own.

Ajay


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carlstronomy
super member


Reged: 06/03/12

Loc: Brisbane, QLD, Australia
Re: M81 and M82 new [Re: bluedandelion]
      #5659161 - 02/03/13 12:02 AM

Ajay sorry ,I read my post back I was wanting to say yours was not oversaturated not the other way around sorry missed a comma,,, ....

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pfile
Post Laureate


Reged: 06/14/09

Re: M81 and M82 new [Re: carlstronomy]
      #5659172 - 02/03/13 12:09 AM

really nice - and just 2 hours? wow.

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fco_star
Pooh-Bah
*****

Reged: 12/13/10

Loc: Texas, Midland
Re: M81 and M82 new [Re: pfile]
      #5659193 - 02/03/13 12:31 AM

beautiful picture Ajay

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bluedandelion
Carpal Tunnel
*****

Reged: 08/17/07

Loc: Hazy Hollow, Western WA
Re: M81 and M82 new [Re: carlstronomy]
      #5659203 - 02/03/13 12:37 AM

Quote:

Ajay sorry ,I read my post back I was wanting to say yours was not oversaturated not the other way around sorry missed a comma,,, ....




No problems Carl. Its all good. In the field of pretty picture making some subjectivity is bound to exist. So I did not take it poorly. Thanks for the clarification.

Ajay


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bluedandelion
Carpal Tunnel
*****

Reged: 08/17/07

Loc: Hazy Hollow, Western WA
Re: M81 and M82 new [Re: pfile]
      #5659213 - 02/03/13 12:42 AM

Quote:

really nice - and just 2 hours? wow.




Skies were nice and dark. Here's some info about the site: http://www.tmspa.com/infopages/site_info.html
Last summer a wildfire swept through here as large parts of central WA burned.

Back on the subject, its the dark skies combined with Pixinsight magic (HDR multiscale) which you know all about:)

Ajay


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bluedandelion
Carpal Tunnel
*****

Reged: 08/17/07

Loc: Hazy Hollow, Western WA
Re: M81 and M82 new [Re: fco_star]
      #5659214 - 02/03/13 12:43 AM

Thank you Francisco.

Ajay


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srosenfraz
Post Laureate
*****

Reged: 03/06/11

Loc: United States
Re: M81 and M82 new [Re: bluedandelion]
      #5659269 - 02/03/13 01:51 AM

Great job on this image, Ajay. Your colors for both galaxies are superb.

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davesaunders
sage


Reged: 04/18/08

Loc: United Kingdom
Re: M81 and M82 new [Re: srosenfraz]
      #5659369 - 02/03/13 05:03 AM

WOW!!

Dave.


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Nils_Lars
Postmaster
*****

Reged: 01/04/08

Loc: Santa Cruz Mountains , CA
Re: M81 and M82 new [Re: davesaunders]
      #5660464 - 02/03/13 05:52 PM

Excellent work here Ajay.

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avarakin
Carpal Tunnel
*****

Reged: 07/13/09

Loc: Parsippany NJ, USA
Re: M81 and M82 new [Re: Nils_Lars]
      #5660954 - 02/04/13 12:02 AM

Excellent image with lots of details!

Alex


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bluedandelion
Carpal Tunnel
*****

Reged: 08/17/07

Loc: Hazy Hollow, Western WA
Re: M81 and M82 new [Re: avarakin]
      #5661039 - 02/04/13 01:22 AM

Scott, Dave, Erik and Alex,

Thanks.

Ajay


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microstar
Pooh-Bah


Reged: 01/05/08

Loc: Canada
Re: M81 and M82 new [Re: bluedandelion]
      #5661065 - 02/04/13 01:58 AM

Very nice detail for such a short integration time.
...Keith


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mmalik
Post Laureate
*****

Reged: 01/13/12

Loc: USA
Re: M81 and M82 new [Re: bluedandelion]
      #5661155 - 02/04/13 05:58 AM

Like it. Thx

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bluedandelion
Carpal Tunnel
*****

Reged: 08/17/07

Loc: Hazy Hollow, Western WA
Re: M81 and M82 new [Re: mmalik]
      #5662565 - 02/04/13 09:59 PM

Thank you Keith and Mike.

Many people (here and on Flickr) have commented on the amount of detail I was able to get with 2 hrs with a canon 350D at 800 ISO.

To tell the truth my first effort was not so great.

This image was acquired in my second season in 2010. However I did collect flats, flat darks to correct the flats and darks. I don't use bias frames because I do traditional dark subtraction and dark frames already contain the bias signal. Proper calibration helped stretch the data more. I also had nice dark skies and the seeing was better than average for most part.

Ajay


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bouffetout
scholastic sledgehammer


Reged: 11/21/12

Loc: Canada
Re: M81 and M82 new [Re: bluedandelion]
      #5669874 - 02/08/13 10:13 PM

Congratulations Ajay ,That's a very fine photo !

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