The 700 size increases smoothly to a Sony Alpha 350 with Battery Grip and handed loop and two lenses and a few small parts.
I personally like the shoulder strap of cameras not, so I usually take pictures with a one-hand strap and the camera in between want quickly and easily stowed. The opening from above (top loader) works fine and you can carry the bag as a "belt". Class when Scrambling and Climbing (with a daypack on the shoulders) or when things go through difficult terrain.
There she has protected my camera with its padding already reliably against many a shock.
With a little trick I have compensated the only deficit in my view. If you are traveling with a large backpack, not a diagonal or over his shoulder to carry bag and the belt method fits behind his back is then also somehow uncomfortable. I've turned into the fastening elements of the belt two key rings, with whom I also front belly can jack into the harness of a backpack the Jimmy Bo ....
For large equipment (especially large lenses or a tripod) you need for photo-excursion a backpack or a much larger bag, but the camera well protected and comfortable in leisure zuhaben case, the bag is optimal.
Ciao
Markus