Thursday night I tried to capture this very faint nebula near the star Omicron CMa (the orange star in the middle) and the fainter bluish Wolf-Rayet EZ CMa. The very faint blue nebula is barely visible as a crescent to left bottom from the orange star.
I exposed 15x3 minutes using the Canon 6D on the ED110 prime focus. I cropped the result to about APS-C size.
Postprocessing with Photoshop was not easy due to the gradients, it was a bit misty and light polluted, not the best combination, in Wyee (near Newcastle), so not the best sky.
I found
this site how to handle these gradients.
And the setup during the imaging using a bag with stones as makeshift counterweight.