HI out last night 25th feb, got the 5 inch dob heritage out, struggling to see the m objects! out with the celestron sky masters 15x70 and.... what a difference, theres something about them lenses in them bins, really crisp and they pull stuff in, i was having to find stuff with bins then guide my scope on to it, there must have been a lot a lot of light pollution because the sirius m objects where not seen. But then again my sky-watcher mak 90mm good for planet viewing and orion neb, and moon is brilliant. but no good for m objects. do i get a bigger scope? hmm theres a thought!!