Orpington Astronomical Society

Astronomy => Astrophotography => Topic started by: mickw on Oct 11, 2010, 23:21:39

Title: Bodes Galaxy
Post by: mickw on Oct 11, 2010, 23:21:39
Bodes Galaxy M81, Cigar Galaxy M82 with NGC 3077
Burgess 91 600mm f6.6 - Unmodded Canon 350D - Unguided
25 x 120s exposures @ iso 800
Lights, Darks, Flats & Bias stacked in DSS
Levels & Curves PS Elements

(http://gallery.orpington-astronomy.org.uk/albums/userpics/10049/normal_M8182_800_25x120.jpg)
Title: Re: Bodes Galaxy
Post by: Mac on Oct 12, 2010, 00:07:00
now your just showing off. 8)

there looks like a bit more data in there,

Mac
Title: Re: Bodes Galaxy
Post by: MarkS on Oct 12, 2010, 05:47:27
Quote from: Mac
there looks like a bit more data in there,

Agreed.  There is more data in most of them I think.  The 8bit PS Elements is doing you no favours - especially noticeable in the Andromeda Galaxy - where the brightness gradient is not smooth.  The whole processing chain needs to be done in 16bit for the best results.

Mark
Title: Re: Bodes Galaxy
Post by: mickw on Oct 12, 2010, 08:05:24
QuoteThe 8bit PS Elements is doing you no favours

Time for an upgrade methinks

Reading the instructions might help  :oops:

Thanks for the comments and advice
Title: Re: Bodes Galaxy
Post by: RobertM on Oct 12, 2010, 13:21:44
I agree with the other comments, you's need more bits - Photoshop CS or the like.  PS7 was only 8bit colour.
Title: Re: Bodes Galaxy
Post by: MarkS on Oct 12, 2010, 16:05:26
Quote from: RobertM
I agree with the other comments, you's need more bits - Photoshop CS or the like.  PS7 was only 8bit colour.

The other option is to learn IRIS!  Duncan and I are both IRIS fans.
Title: Re: Bodes Galaxy
Post by: mickw on Oct 12, 2010, 16:12:17
QuoteThe other option is to learn IRIS!

a)   I'm scared  :(
b)   Nebulosity seems to be changing actual camera settings to take only JPEG  :-?
Title: Re: Bodes Galaxy
Post by: Fay on Oct 12, 2010, 17:00:36
Was this the one, where, everyone was sitting around drinking & you were the only one imaging, at a table with 30 bottles on it    :lol: :lol: :lol:

Well done Mick
Title: Re: Bodes Galaxy
Post by: Tony G on Oct 12, 2010, 18:11:54
Well, what can I say. All great images at the weekend....................ARE THEY YOURS!!!!!!!!!!
Did you find someone's camera lying around, or subscribe to a magazine with pull out images.

Seriously, some great shots ;), and I'll be sitting closer to you to see how you do it, as I'm getting fed up with with focusing on Vega, on my own at the other end of the field. :-?

Keep up the good work. ;)

Tony G
Title: Re: Bodes Galaxy
Post by: mickw on Oct 12, 2010, 19:26:04
QuoteWas this the one, where, everyone was sitting around drinking & you were the only one imaging, at a table with 30 bottles on it

No, that was M31 - which probably explains a lot    :-? 

Tony, I shan't say this again, Pear Cider is nowhere as efficient as Stella for astro photography  :roll: 
Title: Re: Bodes Galaxy
Post by: mickw on Oct 22, 2010, 09:30:16
Tried another reprocess

(http://gallery.orpington-astronomy.org.uk/albums/userpics/10049/normal_M8182_DSS_PS3.jpg)

Better/Worse ?
Title: Re: Bodes Galaxy
Post by: Fay on Oct 22, 2010, 10:09:21
I think it is better, smoother, better detail
Title: Re: Bodes Galaxy
Post by: Tony G on Oct 22, 2010, 11:18:49
Better. ;)

Tony G
Title: Re: Bodes Galaxy
Post by: doug on Oct 22, 2010, 11:21:16
     Bloody showing orft nah, ain`t cha??   :)

    I`m only jealous, Mick.  I stuck the Sony on an outside table when I was in Dorset, took a shot for 30s @ 3200 ISO and got an image of Cassiopeia, the Double Cluster and M31; all very small but there.  I`ll show you the printed picture next Thursday, as my attempts at putting an image on the Forum are a no-no.  :o

    Doug.
Title: Re: Bodes Galaxy
Post by: Carole on Oct 22, 2010, 11:34:28
Blimey Mick, I missed this one.  You've started imaging with avengeance.  M45, M31, M81, M82 and that's only the ones that I remember.  And all without guiding.

Definitely more data in this to be pulled out.  I've not got as far as tackling these two myself yet. 

Well done.

Carole