The Great Nebula in Carina is one of the largest diffuse nebulae in the night sky, and is four times larger and also brighter than the mighty Orion Nebula. It also contains the high luminous hyper-giant star Eta Carinae (100-150 times the mass of our Sun, and four million times as bright), the Homunculus nebula, the Keyhole nebula, and the Mystic Mountain (a dust-gas pillar made famous in a Hubble image).
This image was a quick stack of only 8 images with an unmodified Canon EOS6D through a Skywatcher 120mm apo telescope. I would've like to do more, but I had the moon rising and I needed to be quick.
To view the image session details, and to view / download full-resolution, you can find the image in my Astrophotography 2016 gallery here.