We leave for a week at DisneyWorld on Thursday. My carry-on bag is my Domke F2. I also have a Domke FX5A to carry around while I'm there. The F2 sits here as I pack and unpack bodies and lenses, batteries and chargers. The small bag will hold the GX7 with the 20 and the EM5 with the 45. I could then bring my 45-200 as well and be covered for walk-around, low light, and animals at a distance. I could also just take my Stylus 1 and be good except in low light. So I could also bring the EM5 along just for nighttime. I really want to try the GX7, however, on an extended walk around. I could bring it all but then I'd be doing this every morning in the hotel. I've had my my wife hide the 75 so I don't just start crying.