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Old 15-05-2008, 10:49 PM
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PhotonCollector (Paul)
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First light image 450D 12-Megapixel Digital SLR

Well I received the new 12 megapixel modified Canon 450D and this is the first light image under a bright Moon lit sky (poor conditions).

The Canon 450D Rebel XSi is modified with a clear wideband filter. I used a 2" Baader IR cut filter and an Astronomik 2" CLS filter.

I am impressed with the first image - it's a good start and should be impressive when dark skies return. The camera appears very sensitive to H-alpha and incredibly low noise. Though I will need a few more imaging sessions to really see what it can do.

Pity about the coma being caused by the field reducer/flattener, I'll go back to using the Baader Coma Corrector next time. I haven't worried too much about colour balance in this image - looks at bit off.

The imaging scope is a William Optics 110mm refractor on a tripod mounted Losmandy G-11 equatorial mount with Gemini 4.

You can see a 25% reduction of the image here
http://www.skylab.com.au/pmsa/Eta_Carina_080515.html

Autoguided with SBIG 402 on Orion ST-80 f/5 guidescope with CCDOps.
10 x 4-minute exposures @ ISO 400.
Total Exposure time 40-minutes.
Astronomik 2" CLS filter,
Baader 2" I/R Cut Filter,
WO 0.8x Field reducer/corrector Mk III.
Processing Darks, bias and flat-fielded with ImagesPlus, post processing in Photoshop.
Attached Thumbnails
Click for full-size image (EtaC_080515_Low.jpg)
179.4 KB129 views
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Old 16-05-2008, 04:03 AM
Shawn
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I would be very happy with that. well done...
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Old 16-05-2008, 04:39 AM
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iceman (Mike)
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That's excellent, Paul.. a new modded 450D! Very exciting indeed.

It'll be a huge leap up from the 300D i'm sure. I can't wait to see more results.
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Old 16-05-2008, 07:30 AM
Prickly
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Gee whiz, thats an amazing outcome isnt it.

Certainly another option to the QHY8.

Fantastic result and thanks for posting it.

Cheers
David
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Old 16-05-2008, 07:51 AM
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Top image, looks very stunning.

Well done Paul.
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  #6  
Old 16-05-2008, 09:30 AM
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dugnsuz (Doug)
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Very nice first light from the 450D - opened up the image in PS to take a peek.
There's heaps of data under the red channel in Levels - almost too much for this poor boy to cope with!!!
Very keen to see these modded pic results as my 40D is off being operated on too.
Can't wait to see some more
Cheers
Doug
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  #7  
Old 16-05-2008, 09:52 AM
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PhotonCollector (Paul)
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Quote:
Originally Posted by dugnsuz View Post
There's heaps of data under the red channel in Levels - almost too much for this poor boy to cope with!!!Doug

You got that right ! This camera seems to be super-sensitive - but really it is a case of "time will tell" as this is only first attempt and under a bright Moon.

cheers
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  #8  
Old 16-05-2008, 09:56 AM
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PhotonCollector (Paul)
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Quote:
Originally Posted by iceman View Post
That's excellent, Paul.. a new modded 450D! Very exciting indeed.

It'll be a huge leap up from the 300D i'm sure. I can't wait to see more results.
Hey Iceman,

Yes quite exciting and yes a big leap from the ole' 300D.
I also can't wait to see more results

regards
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  #9  
Old 16-05-2008, 12:58 PM
tornado33
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Top stuff, cant wait to see more under dark skies
Scott
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  #10  
Old 16-05-2008, 03:42 PM
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Matty P (Matt)
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Great image Paul, I love the colour.

Keep 'em coming.

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  #11  
Old 16-05-2008, 04:07 PM
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leon
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You should be impressed, that is a top image, well done indeed.

Leon
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  #12  
Old 16-05-2008, 04:14 PM
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Garyh
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Very impressive first light shot Paul
Look forwards to more from the new 450D
cheers Gary
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  #13  
Old 16-05-2008, 06:29 PM
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Ric
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Great shot Paul, very enjoyable to view.

Cheers
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  #14  
Old 16-05-2008, 07:07 PM
jase (Jason)
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Great FOV. Shame about field flatness. Certainly showing potential. Well done.
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  #15  
Old 17-05-2008, 10:51 PM
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PhotonCollector (Paul)
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Improved version of the image

Hi all,

thanks again for all the comments. I've re-processed the image and this time I think it is much more true to colour than the initial attempt at processing the 14-bit images - which incidentially are huge - the final image is circa 100-Megabytes in 16-bit TIFF format.

Here's a 25% reduction of the original http://www.skylab.com.au/pmsa/Eta_Carina_080515.html

cheers
Attached Thumbnails
Click for full-size image (EtaC_080515_Low.jpg)
197.9 KB33 views
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  #16  
Old 18-05-2008, 06:56 PM
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Chippy (Nick)
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Superb!!!

I found myself without any planning - looking at things with 40D, 400D and 450D printed on them today while I was at the shops. I am fully against getting into imaging just yet by the way... huh, what's going on here...?
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