My DSLR scene of the Grus quartet, 3hr 10min of frames. I'm struggling a little with background noise that's probably mainly because it's a DSLR, but there's a decent few background galaxies, including cluster AS1111 and a few more. 200mm f/5 Newtonian, more details at the links. It's the first picture where I've tried a little deconvolution too, but I couldn't be very bold with it, lots to learn! Comments on improving smoothing or background colour/noise level with DSLR images (or anything else) are welcome, the main background noise reduction is a masked MLT.
A larger view
of the wider scene here
A
full resolution view of the trio