EF Lenses


EF100mm f/2 USM

  • Specifications
  • Block diagram
Marketed October 1991
Original Price 65,000 yen
Lens Construction (group) 6
Lens Construction (element) 8
No. of Diaphragm Blades 8
Minimum Aperture 22
Closest Focusing Distance (m) 0.9
Maximum Magnification (x) 0.14
Filter Diameter (mm) 58
Maximum Diameter x Length (mm) 75 x 73.5
Weight (g) 460

Despite the large maximum aperture, the lens remains compact. Lens group 5 moves for rear focusing, and sharp, crisp pictures are obtained at all apertures. The background blur is ideal for portraits. The USM autofocuses the lens quickly and quietly.

Block diagram