Since this site doesn't allow useful sticky's check out this post, start with #2 and it will help ya bud, iceman made me cry also when he wouldn't sticky anything useful, seems i need a degree in arm chair engineering.
Monitor Calibration Graphic
If your monitor is calibrated well for contrast, you should be able to distinctly discern all of the squares in this image. Note that the blacks in the far left column are particularly difficult to see the differences in, but if you have a good monitor that is well calibrated you will be able to distinguish them all. If you can't, then play with your brightness and contrast settings until you can split them all as best as possible.
http://www.myastronomyjournal.com/DS...tion-Image.gif
Challenges:
NOTE- Challenge #1 was the first one I posted (duh) but I thought people might be at a higher level so to speak. It turns out it was a little too ambitious. So, if you are new to processing, you might want to start with #2 and following and come back to #1 later on in your experience.
Challenge 001:
http://www.myastronomyjournal.com/DS...011-02-12_M42/
C001 Walkthrough Screen Shots:
http://www.myastronomyjournal.com/DS...2_Walkthrough/
Challenge 002
http://www.myastronomyjournal.com/DSLR-AIP/C002-M31/
C002 Walkthrough Video:
http://www.myastronomyjournal.com/DS...1-Walkthrough/
Challenge 003
http://www.myastronomyjournal.com/DSLR-AIP/C003-M51/
003 Walkthrough: None posted
Challenge 004
http://www.myastronomyjournal.com/DS...4-RhoOphiuchi/
004 Walkthrough:
http://www.myastronomyjournal.com/DS...i-Walkthrough/
Challenge 005
http://www.myastronomyjournal.com/DSLR-AIP/C005-M13/
005 Walkthrough:
www.myastronomyjournal.com/DSLR-AIP/C005-M13-Walkthrough
Challenge 006
http://www.myastronomyjournal.com/DSLR-AIP/C006-M20/
006 Walkthrough: None posted
Challenge 007
http://www.myastronomyjournal.com/DS...007-NGC7000WF/
007 Walkthrough:
http://www.myastronomyjournal.com/DS...F-Walkthrough/
Challenge 008
http://www.myastronomyjournal.com/DS.../C008-NGC7023/
008 Walkthrough:
http://www.myastronomyjournal.com/DS...3-Walkthrough/
Challenge 009
http://www.myastronomyjournal.com/DS.../C009-NGC4565/
009 Walkthrough: None posted (yet)
Challenge 010
http://www.myastronomyjournal.com/DSLR-AIP/C010-B33/
010 Walkthrough: None posted (yet)
Challenge 011
http://www.myastronomyjournal.com/DSLR-AIP/C011-M45/
011 Walkthrough (thank you Scott Rosen):
http://www.astronomersdoitinthedark....lkthrough.html
Challenge 012
http://www.myastronomyjournal.com/DSLR-AIP/C012-C9/
010 Walkthrough: None posted (yet)