Suitable focal length for Leica rangefinder

The Leica rangefinder is suitable for a focal length of 35mm. According to the query of relevant public information, the Leica rangefinder 35mm focal length plus the f2 aperture is Leica's three-high-end lens with the highest production, highest sales, and highest reviews. Leica rangefinder cameras are most suitable for shooting images at a distance of 2 to 10m. The most commonly used focal length lenses are 28mm, 35mm, and 50mm. They have outstanding expressiveness and excellent imaging, so they are often called the "humanities focal length" and are the most popular for humanistic documentaries. Best choice for photographers.