I was pleasantly surprised by this little bag containing a multitude of possibility. I own a Canon EOS450D with its 18-200mm zoom I can store it vertically in the bag without removing the zoom, which still leaves me a position equivalent to half the capacity of the bag. And I'm not including pockets !!! Really boilerplate (more like a vanity or small travel bag to a bag with camera). For dimensions: external pockets included: length 29 width 20 height: 20 Inside: length 14 width 20 height: 17