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Captured by
Douglas Rollain

Lion Nebula SH2-132 - RC71

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Posts Made By: Greg Bradley

October 19, 2006 09:33 PM Forum: Digital SLR AstroPhotography

reworked M42

Posted By Greg Bradley
I have spent more time processing this one and reprocessing than on any other image. Which is odd in a way, as when you get a good signal to noise ratio processing is usually pretty easy. But this one has such a large dynamic range, had very bright stars with their flares and halos, has a huge range of hues and colours and it responded so well to processing it was possible to push it in many different ways.

I thought the original had a bit of a residual red/pink cast to it (modified camera's RAW images are really really red) so that was one reason.

How do find this one?

Greg.

November 19, 2006 08:13 AM Forum: CCD Imaging and Processing/Deep Sky

The Large Magellanic Cloud

Posted By Greg Bradley
This image was taken with no guiding, in fact no mount at all - simply a tripod. Thanks to the amazing sensitivity of modern cameras and a nice dark site with excellent seeing.

10 x 20 seconds, Nikkor 50mm F1.8 lens, Canon 20D (modified by me).

Greg.

November 20, 2006 03:43 AM Forum: CCD Imaging and Processing/Deep Sky

Star Trails

Posted By Greg Bradley
Here are 2 images of star trails I took over the weekend.

One is 3 x 30 minutes and shows the South Celestial Pole (the camera was aligned with my permanent pier so I can tell where the SCP is in relation to the top of the tree!!). The smudge is the Large Magellanic Cloud.

http://tinyurl.com/yc6zt6

The other is 8 x 30 minutes (4 hours total) of my weekender at my observatory site.

http://tinyurl.com/yg5srr

Modified Canon 20D.

Greg.

November 28, 2006 10:24 PM Forum: CCD Imaging and Processing/Deep Sky

how do set the correct colour in your image?

Posted By Greg Bradley
I have been reviewing my images and have found it hard to work out what the correct colour should be for the objects.

Any suggestions about how to achieve an accurate colour for your images?

Greg.

November 29, 2006 12:06 PM Forum: CCD Imaging and Processing/Deep Sky

M42

Posted By Greg Bradley
M42, a tricky one to process.

http://tinyurl.com/yerbwj

FSQ/Modified Canon 20D.

Greg.

December 8, 2006 12:39 PM Forum: CCD Imaging and Processing/Deep Sky

Tarantula Nebula in Ha

Posted By Greg Bradley
90 minutes STL11000XCM one shot colour 2x2 binning, FSQ106n. A work in progress.

http://upload.pbase.com/image/71363296

Greg.

December 13, 2006 02:01 PM Forum: CCD Imaging and Processing/Deep Sky

Tarantula Nebula in colour

Posted By Greg Bradley
This is the colour added to the 2 hours of Halpha. 7 x 15 minutes, dark site, STL11000XCM, FSQ106n, NJP mount good skies but some bushfire smoke about!

One image had a bright satellite trail, one had a bright meteorite, another had a jet through it! So the healing brush in Photoshop was a godsend.

Greg.

December 13, 2006 10:44 PM Forum: CCD Imaging and Processing/Deep Sky

Horsehead in Halpha

Posted By Greg Bradley
Here is the Halpha of the Horsehead.
FSQ106n, NJP mount, STL11000XCM one shot colour at 2x2 binning, Baader unmounted 50.8mm 7nm Ha filter.

Colour to come.

Greg.

December 15, 2006 11:29 AM Forum: CCD Imaging and Processing/Deep Sky

Horsehead with some colour

Posted By Greg Bradley
I added what little colour I had to the Halpha images.

Greg.

December 15, 2006 10:58 PM Forum: CCD Imaging and Processing/Deep Sky

The Large Magellanic Cloud

Posted By Greg Bradley
Hi Ivan,

I took your advice and reworked this image to highlight the Halpha regions more.

http://www.pbase.com/gregbradley/image/71620310

FSQ/STL11000XCM.

Greg.

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