Some popular brands known for producing high-quality cameras include Canon, Nikon, Sony, and Leica. Canon and Nikon are well-regarded for their DSLR cameras, which offer excellent image quality, fast autofocus, and a wide range of lens options. Sony is known for its mirrorless cameras, which are compact yet powerful, with high-resolution sensors and advanced autofocus capabilities. Leica is a luxury brand known for its premium build quality, exceptional optics, and timeless design. These brands are trusted by professional photographers and enthusiasts alike for their consistent performance and cutting-edge technology.