Looking a backpack bag to hold a Nikon D 5300 with a Nikon 18-140mm lens and a Tamron 70-300mm f4-5.6 SP Di VC USD would like to be able to store the camera with the Tamron lens still attached, so i have narrowed the search down to either the lowepro flipside 200 or the 300, i dont want a big that will be too big for my needs as i wont be adding to my collection of gear any time soon, or there will be a divorce.