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Old 26-10-2013, 02:15 AM
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M33 Triangulum Galaxy (more data added)

Hi Everyone. This is my first image with my newly self modded 1100D, I think I like the potential the modd as given this camera. These subs are from last night 24.10.23. I think I might have pushed the data a bit to far, but I have another hour and a quarter of subs from tonight to add to it. I'll fix it all up once I add the new data. As always, critique and advise are welcomed. I want to improve. Thanks for looking.

Image details:
Object: M33 Triangulum galaxy
Location: North of Townsville NQLD
Camera: Modded Canon 1100D Astronomic CLS-CCD clip filter
Scope: Newly acquired carbon fibre Skywatcher 8" f/4 astrograph, MPCC
Exposure: 20 x 300sec @ ISO1600
Guiding: QHY5 4" f/5 newt and PHD
Captured with: APT - Astro Photography Tool
Stacked in DSS and processed in Photoshop CS2

I created an astrobin account this morning and uploaded a better quality image, still not full size but much better.
http://astrob.in/61511/

Well, I finally got around to adding the new data, re-stacking and reprocessing. I had to crop it slightly to remove stacking artifacts. I gotta tell you that I am not sure it was worth the drama, as this time around I really struggled to rein in the reds. I am not sure whether I like the second one or the first. I must be doing something wrong somewhere in the processing because every other pic I have seen of this galaxy has much more blue than red. Please be honest and tell me which you like better and why, (I want to learn). If you have suggestions as to how to make it better I am all ears. Thanks for looking.
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Last edited by Rex; 29-10-2013 at 01:48 PM. Reason: Added more data
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Old 26-10-2013, 08:03 AM
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Looks good to me, Rex!
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Old 26-10-2013, 08:05 AM
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Rex, that shot comes up quite large in my browser, might be better to reduce the size and then save as a jpeg, you should get a better quality image to look at then given the file size limitation of the board.
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Old 26-10-2013, 09:33 AM
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Sic 'em Rex!

Good shot.
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Old 26-10-2013, 10:08 AM
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Nice work, Rex. Especially from northern Qld! M33 must have been very low in the sky.
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Old 26-10-2013, 10:24 AM
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Quote:
Originally Posted by Larryp View Post
Looks good to me, Rex!
Thanks Laurie, since I got this scope I have been really enjoying my astrophotography. I don't feel like I slog my guts out and get nothing in return.

Quote:
Originally Posted by Spookyer View Post
Rex, that shot comes up quite large in my browser, might be better to reduce the size and then save as a jpeg, you should get a better quality image to look at then given the file size limitation of the board.
Ok Brett I'll try that when I add the extra subs. thanks for the advice.

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Sic 'em Rex!

Good shot.
Thanks Lewis, I am trying lol.

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Originally Posted by RickS View Post
Nice work, Rex. Especially from northern Qld! M33 must have been very low in the sky.
Thanks Rick, it ranged from 17deg when I started to 39deg at transit. Not long after transit my northern sky is blocked by a tree. I got 23 subs in but lost three due to guiding errors. Can't have everything I guess.
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Old 26-10-2013, 11:28 AM
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Looking great Rex

Jo
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Old 26-10-2013, 12:33 PM
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Thanks Jo. Just gotta find the time to add the extra data now.
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Old 26-10-2013, 12:38 PM
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Nice job Rex
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Old 26-10-2013, 01:31 PM
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Thanks Kosh
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Old 26-10-2013, 02:08 PM
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That's a really decent M33 Rex. Its a tough one to do justice to and I like the Ha regions you've managed to bring out.
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Old 26-10-2013, 03:44 PM
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Very nice.
It's good to see someone capturing an object we don't see imaged that often (in the Southern Hemisphere at least).
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Old 26-10-2013, 05:32 PM
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That's the advantage of living here in the north. We get to image objects most of the rest of Oz can't even dream of doing When it's not raining, or all smoked out, or hazy and humid

Nice piccie
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Old 26-10-2013, 05:39 PM
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Awesome shot.
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Old 26-10-2013, 06:23 PM
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M33 is a tough one. You have captured it well, especially from Townsville.

What was it like to mod the 1100D? I'm toying with the idea but am worried about "all thumbs" syndrome with itty bitty screws and cables.
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Old 26-10-2013, 08:29 PM
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Quote:
Originally Posted by RobF View Post
That's a really decent M33 Rex. Its a tough one to do justice to and I like the Ha regions you've managed to bring out.
Thanks very much Rob. Hopefully I can do as well when I include the next set of Data.

Quote:
Originally Posted by Retrograde View Post
Very nice.
It's good to see someone capturing an object we don't see imaged that often (in the Southern Hemisphere at least).
Thanks Pete. I love the northern sky from here. Quite a few objects that I hope to image over time, M31, Veil, North American Neb, Pelican Neb, Crescent Neb, just to name a few.

Quote:
Originally Posted by renormalised View Post
That's the advantage of living here in the north. We get to image objects most of the rest of Oz can't even dream of doing When it's not raining, or all smoked out, or hazy and humid

Nice piccie
Thanks Carl. Yes the dreaded wet is definitely on the way. the humidity is rising day by day. Won't be long and it will all be over until next year

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Originally Posted by DavidU View Post
Awesome shot.
Thanks Dave.

Quote:
Originally Posted by cometcatcher View Post
M33 is a tough one. You have captured it well, especially from Townsville.

What was it like to mod the 1100D? I'm toying with the idea but am worried about "all thumbs" syndrome with itty bitty screws and cables.
Thanks Kevin, I feel I am improving. Modding the 1100D is actually not as hard as most people think. Most of the later models have two flters, one you remove and the other you keep. To be honest the only really stressful bit is prying the glass out. Unfortunately the filter you remove is under the one you keep, so have to be very careful not to break the first filter when your removing it to gain access to the second. Other than that, you just take your time and don't rush it.
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Old 29-10-2013, 01:49 PM
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See first post more data added, and reprocessed.
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Old 29-10-2013, 02:10 PM
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Rex, looks improved to me on my screen.

Brett
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Old 29-10-2013, 03:23 PM
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G'day Rex,

I've really enjoyed the way you've sunk your teeth back into astrophotos. you are getting great results. you could perhaps turn the red down with PS, by using selective colour? Did you realign the RGB channels after stacking as i believe this gives a stronger red signal on a modded DSLR.

All the best, and keep posting your shots - been terrible weather in melbs so living vicariously through others shots!

Cheers,

Rusty
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Old 29-10-2013, 08:47 PM
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Hey Rex, very nice image as your processing skill increase you will find the extra data really helps the over all image quality.

I used to have problems with the red in my images but found it's gone now that I've got cooling.

I had a go trying to see if I could remove it from your picture and it seems to come out OK, added a bit more blue as well.

Hope you don't mind me having a fiddle, I would recommend keeping all your data for when you want to have a go again.

Cheers
Jo
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