EF Lenses


EF50mm f/1.2L USM

  • Specifications
  • Block diagram
Marketed January 2007
Original Price 185,000 yen
Lens Construction (group) 6
Lens Construction (element) 8
No. of Diaphragm Blades 8(circular aperture)
Minimum Aperture F16
Closest Focusing Distance (m) 0.45
Maximum Magnification (x) 0.15
Filter Diameter (mm) 72
Maximum Diameter x Length (mm) 85.8 x 65.5
Weight (g) 590

EF50mm F1.2L USM is an ultra-large aperture standard lens ideally suited for portrait photography. In addition to offering a shallow depth of field with a maximum aperture of F1.2, the lens enables the use of fast shutter speeds to reduce motion blur and support shooting in low light. Employing a large, high-precision aspherical lens element made of highly refractive glass to minimize aberrations during focusing, the EF50mm F1.2L USM lens maintains the superior image quality throughout the shooting range for which Canon’s L-series lenses are renowned. Additionally, the lens’s ring-type USM (Ultrasonic Motor), high-speed CPU, and optimized AF (AutoFocus) algorithm enable silent and extremely accurate autofocus operation. Designed to meet the diverse needs of professional and advanced amateur photographers, the bright lens features full-time manual focusing, which enables users to focus by hand in the AF mode, and a dust- and moisture-proof construction, ensuring unfailing performance even under harsh conditions. Ideal for photographers who shoot portraits and weddings, Canon’s EF50mm F1.2L USM lens features a round aperture that achieves excellent background blur.

Block diagram