I have the Think Tank Retrospective 5 bag to carry both my rangefinder and Micro 4/3s camera. But I just picked up, by impulse, a Kata Lite - 433 DL bag. It fits in a Leica M Monochrom with 50mm 1.4 mounted, with half leather case, spare battery and card. It's good for those lazy days where no photographic adventure is imminent. It can be worn by the belt like a belt bag. Too early to judge, but so far so good. How about you?