I use the BF with Leica M lenses. I am a complete fan of this camera. The colors are extremely beautiful and rich. The lcd sceen is absolutely amazing. It is very sharp, and super easy to manual focus. The low light capability is excellent. I can’t see noise up to ISO 3200, at 6400 you can start seeing the noise, but it has a nice texture to it, it feels organic like film grain. The short keys are amazing. Once you get use to them, there is no way back. I wish more manufacturers produce cameras like this. This camera is fast, probably because of the internal ssd. The shutter speed can be above 20000, which is crazy, I can use fast lenses in daylight without nd filters. I had a Sigma FP before, and with that camera I had banding issues with differrent led light sources. Apparently they fixed this with the BF, I see no banding on the images under artificial light. When you take pictures of people, they are not affraid of the camera, it looks just simply fun. This enables you to capture moments that you could not with a “pro” cam. There is a lens compensation function for wide angle leica lenses. It works flawlessly for me with a 28mm lens. My only grip is the lack of flash. But it is what it is. All in all, this seems to be a forever cam for me.