EF Lenses


EF28-135mm f/3.5-5.6 IS USM

  • Specifications
  • Block diagram
Marketed february 1998
Original Price 78,000 yen
Lens Construction (group) 12
Lens Construction (element) 16
No. of Diaphragm Blades 6
Minimum Aperture 22-36
Closest Focusing Distance (m) 0.5
Maximum Magnification (x) 0.19
Filter Diameter (mm) 72
Maximum Diameter X Length (mm) 78 X 97
Weight (g) 549

This is a high-magnification standard zoom lens with 5X zoom ratio, ranging from wide-angle of 28mm to medium-telephoto of 135mm. This lens features a built-in compact Image Stabilizer(IS) unit, which is newly developed for this lens. This new compact IS unit and a compact optical system with multi-lens-group zoom design achieves compact and lightweight design of high-magnification zoom lens. The IS system is the same as other IS lenses. The image stabilizing effect is equivalent to about two steps of shutter speed. The optical system uses a molded glass (GMo) aspherical lens element(14th) to provide sharp definition throughout the entire zoom range. A ring USM (Ultrasonic Motor) and inner focusing system assures silent and high-speed AF and full-time manual focusing.

Block diagram

Aspherical lens