I am pretty sure my first ever image of a DSO was also of this cluster of stars, taken from a balcony in Rockdale in Sydney, and my photo looked very similar to yours!
It's always pretty Slawomir, and we haven't had a close up in the beginners' forum for a while.
Ta muchly Aidan, no, the same old Newt. I usually have a quick look at 4755 when I'm in the area, which I will be when I try to get a larger scale
image of 3918. [ I wish the clouds would go away, 5 weeks now].
raymo