The best Leica cameras for underwater photography are those that can be paired with reliable waterproof housings while delivering high image quality and fast performance. A good underwater camera should have a robust sensor, excellent dynamic range, and fast autofocus to capture subjects in motion and in challenging lighting conditions. Look for features like manual control options, high ISO performance, and compatibility with underwater housings or accessories. The Leica SL2 is a strong contender thanks to its full-frame sensor, exceptional image quality, and compatibility with professional underwater housings like those from Nauticam. Its weather-sealed body and durable build also offer peace of mind in damp or splash-prone environments. While Leica doesn’t produce dedicated underwater cameras, their premium build quality and support from third-party housing manufacturers make certain models suitable for serious underwater work. For those seeking a more compact setup, the Leica X-U (Typ 113), though discontinued, was purpose-built for underwater use and remains a popular choice among diving photographers who prefer Leica’s aesthetic and image output.