The Canon Rangefinder "Dream Lens" is a legendary lens produced by Canon in the 1960s. It's officially known as the Canon 50mm f/0.95 lens. This lens gained the nickname "Dream Lens" due to its exceptionally fast maximum aperture of f/0.95, which was unprecedented at the time and allowed for incredibly shallow depth of field and excellent low-light performance.

Optically, the Canon Dream Lens is renowned for its unique rendering and characteristic "dreamy" look. When used wide open at f/0.95, the lens produces a distinct softness and glow, particularly in out-of-focus areas, resulting in a dream-like aesthetic. Despite this softness, the lens still maintains good center sharpness, making it suitable for portrait and artistic photography.