Howdy
Nice find there. I couldnt resist looking back over a pic I took of M7 not long after getting my 300D last year using Star Atlas Pro software, sadly, that PN is out of the frame but I did find another one
http://www.users.on.net/~josiah/temp/m7.jpg
Its PNG355.9-04.2 also known as M 1-30 given as a 5 arc sec PN at Mag 14.4 in H beta
The pic is three, five min ISO 400 shots with the 10 inch scope.