Allan's Deepsky

M27 Dumbell Nebula

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M27  Dumbell Nebula
11x60secs, ISO 800. Stacked with Nebulosity and DPP processed. Celestron 102SLT and Canon EOS Rebel XS
Posted by Allan on July 31, 2010 Full Size|

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4 Comments

Reply Doug
2:26 PM on September 8, 2010 
Allan,
Thanks for the info, I'll have another go with my paint program (Paintshop Pro), although it has just occurred to me that the light pollution filter could be part of the problem, although I didn't think it affected greatly the red component of the spectrum.

Doug
Reply Allan
10:10 AM on September 8, 2010 
Doug,

I used curves in Photoshop tweak the red channel a little. The Canon Rebel XS is unmodified.

Cheers Allan
Reply Allan
10:04 AM on September 8, 2010 
Doug says...
Allan,

As you can see from my images of M27, I cannot capture the red on the fringes of the 'bubble', which you seem to have done very well. I have tried increasing the red saturation and messed with the hue etc. but that only messes with the colour balance of the overall image. I believe that the EOS Rebel XS (1000D) is very similar to my 450D in all but a small reduction in pixels, so have you any ideas as to what I am doing wrong (I am assuming that your Rebel is unmodified wrt the IR blocking filter)?

Appreciate any suggestions,
Doug
Reply Doug
3:00 PM on September 6, 2010 
Allan,

As you can see from my images of M27, I cannot capture the red on the fringes of the 'bubble', which you seem to have done very well. I have tried increasing the red saturation and messed with the hue etc. but that only messes with the colour balance of the overall image. I believe that the EOS Rebel XS (1000D) is very similar to my 450D in all but a small reduction in pixels, so have you any ideas as to what I am doing wrong (I am assuming that your Rebel is unmodified wrt the IR blocking filter)?

Appreciate any suggestions,
Doug