Hi guys! I was doing some serious considerations on how much I use nowadays all my gear and ways to minimize weight and size by avoiding to carry around on vacation a heavy backpack with all the stuff. I currently have this: Canon 5D Mark II EF 17-40mm (70%) EF 70-200mm (25%) EF 85/1.2L II (5%) fisheye 580EXII flash I indicated the percentage of the lense getting used, while I shoot mainly landscapes, people and travel photography in general, always in RAW later imported in Aperture. Is there any way I could slim everything down, without suffering major IQ loss? Maybe the Sony A7r, Canon G1X M2, or a Leica? I know that the ecosystem with other brands wouldn't be so large like the Canon one, but it is an acceptable compromise for me, since I need just a wide and a medium-telephoto lenses (or a zoom) to shoot most of my pics.