Actually I use just the Leaf Aptus II 8 back, with 40 MP, considering about the 80 mp back. But the quality of the aptus II 8 is pretty awesome, too. As lenses I have Schneider-Kreuznach-Lenses with fixed focal length: 55, 80 and 110. I use small format cameras, when I'm not at work, because those are much lighter and smaller. My Canon 60D, I took my photos with, is better to handle in a backpack.