The Carl Zeiss Sonnar 50mm f/2 lens for Robot Royal 36 cameras is a rare and highly sought-after manual-focus lens, renowned for its sharpness, contrast, and classic Zeiss rendering.

The glass on this specimen is near perfect, and is totally free of haze and fungus. The focus ring turns extremely smoothly, and the aperture blades are totally oi-free. 

Designed specifically for the Robot Royal 36 system, it features a fast f/2 maximum aperture, making it ideal for low-light conditions and portrait photography.

Its compact design and robust all-metal construction reflect the precision engineering of mid-20th-century German optics. This lens is a prized addition for collectors and photographers seeking exceptional image quality and vintage character.