The Canon EF28-135mm f/3.5-5.6 IS USM is a high-performance lens with image stabilization. It features silent and high-speed autofocus and can achieve 0.5m of good close-up in all focal lengths.
The manual introduces the EF28-135mm f/3.5-5.6 IS USM lens, describing its high‑performance optics, ultrasonic motor (USM) for fast and quiet autofocus, and image‑stabilizer functions. It outlines safety precautions such as avoiding extreme temperatures and keeping the lens sealed to protect internal components.
Detailed sections cover proper installation and removal of the lens, various autofocus modes (ONE SHOT AF, AI Servo, AI Focus), usage of the image‑stabilizer, and technical specifications. The document also provides handling tips for low‑light shooting and information on compatible camera bodies. This manual is written in Chinese.
| Focal length / maximum aperture | 28‑135 mm f/3.5‑5.6 |
|---|---|
| Lens construction | 12 groups, 16 elements |
| Maximum magnification | 0.19× |
| Filter thread diameter | 72 mm |
| Weight | 540 g |
| Dimensions (max width × height) | 78.4 mm × 96.8 mm |
When installing, align the lens mount and turn clockwise; when removing, turn counter‑clockwise and place the rear of the lens upward to avoid contact with the mount contacts.
The front filter thread is 72 mm in diameter.