EF Mount

EF24mm f/1.4L USM

WIDE Lens

EF24mm f/1.4L USM
Marketed December 1997
Original Price 210,000 yen (w/case and hood)
Lens Construction (group) 9
Lens Construction (element) 11
No. of Diaphragm Blades 7(circular aperture)
Minimum Aperture 22
Closest Focusing Distance (m) 0.25
Maximum Magnification (x) 0.16
Filter Diameter (mm) 77
Maximum Diameter x Length (mm) 83.5 X 77.4
Weight (g) 550

The fastest wide angle L lens in its class with excellent definition. The first EF lens uses a ground and polished aspherical glass lens element and a UD (Ultra-low Dispersion) glass lens element simultaneously, in order to achieve a large f/1.4 aperture and superb optical performance of a L lens at the same time. The floating optical system provides high image quality over the entire focusing range. This is the first L lens with lens elements, made of only ecologically sound lead-free glass. A ring USM (Ultrasonic Motor) and rear focus system offer silent, high-speed AF. A full-time manual focusing and a non-rotating filter frame provide excellent operability. A petal-shaped lens hood comes with the lens.

Block diagram

  • UD Lenses
  • Aspherical lens