I have the bag and I have had a gripped 5DII and 5DIII in it. Its a tight fit. If you have L plates and/or straps its a very tight fit. You may find that this is more of a transportation to and from solution rather than a walkaround carry and use solution. The problem is that the zipper goes down the middle in a straight line instead of a wrap around zipper that opens the top fully. Its ocnceivable that you can use it as a walkaround carry and use but it isnt that convenient. I think you would be better off in that case with double shoulder straps or spiderholster.