Which country's SLR digital camera is better, German SLR or Japanese SLR? And the lens.

As far as performance is concerned, German cameras are absolutely good. Like Hummer, Leica cameras used by war correspondents are impeccable and can be used normally under any circumstances. The only problem is that they are too expensive. Japanese cameras are designed for civilians, and their performance has been compromised, and the price has also been reduced a lot. For example: the same lens 50 1.4, Leica 20000, Nikon 2000. Even so, the law of the camera industry-a penny for goods, three cents for goods, five dollars for goods.