Here is my version of NGC5139. Images was taken with a Canon 350d and Celestron 8" SCT (unguided) from a suburban backyard in Perth.
I used Deep Sky Stacker to stack images (4 x 10sec + 2 x 20sec) and then Photoshop to process. I have recently purchased Noel Carboni's Astronomy Tools - this action set for Photoshop has made it easier to process and add some interesting features, like star diffraction spikes and a frame.
I may have over-processed this image but I am still learning and having fun.
Any comments welcome.