I has been exciting to see how the image has come together as I have collected data each night, and as I gain more imaging experience I'm constantly amazed at what this little camera can pick up. My excitement finally spilled over and so I had to share what I had so far
so thanks for all the encouragement folks.
Quote:
Originally Posted by strongmanmike
...wow very flattered 
Fine result indeed Richard and very deep 
It does look like your processing has produced a sort of dark ring around Cen A's halo..? What do you think? Might just be the HDR?
I have to say when I completed that image in mid 2008 I thought for sure with time many others would be producing similarly or even deeper images of this iconic galaxy, in a similar way that images of M81/82 have become deeper end deeper....but it seems clear it is not so easy to achieve
Mike |
Thanks especially for your comments Mike - your image is still the touchstone
The dark ring you refer to is actually there in my non-HDR images from earlier in the imaging run (as I did the 600s subs last). For example, the attached is a quick and crude process of just the 300s data, and it's visible here too.
I can maybe see some of those darker areas in your image but clearly not as obvious as in mine. My processing is no doubt partly to blame (im still learning after all) - i'm using curves to progressively stretch a *very* small/narrow variation in luminance just above the background level, so maybe there is a better way?
Another thought I had was that there may be differences in wavelength response between the two cameras which means that the 'ring' around the halo isn't captured as strongly in my image...?
The scary thing is that now I seem to have that tilt more under control (after some tweaks over the last couple of nights) I'm tempted to do it all again...
Addictive isn't it
