Canon EF70-300mm f/4-5.6L IS USM User Manual

EF70-300mm f/4-5.6L IS USM is a high-performance telephoto zoom lens with image stabilizer, specially developed for EOS cameras. It features an image stabilizer that has the effect of a shutter speed four stops faster, as well as UD lens elements that produce outstanding imaging performance.


Canon EF70-300mm f/4-5.6L IS USM User Manual - cover page
Brand
Canon
Category
Other Electronics
Document type
User Manual
Language
Chinese
Pages
16
File format
PDF
File size
1.1 MB
Published
20 March, 2012
Updated
30 September, 2023
MD5 checksum
FA0B8410D5D98556E2E1E9E236EF345F

About this manual

The EF70-300mm f/4-5.6L IS USM is a high‑performance telephoto zoom lens with image stabilization and ultrasonic motor (USM) designed for EOS cameras. It offers a versatile focal range and robust sealing for dust‑ and moisture‑resistance.

The manual covers safety precautions, lens installation and removal, focusing mode settings, use of the lens hood, zoom‑ring lock operation, cleaning of electronic contacts, and detailed technical specifications. It also provides guidance on handling the lens in extreme temperatures and proper storage. This manual is written in Chinese.

What's inside

  • Safety Precautions
  • Installation and Removal
  • Focusing Mode Settings
  • Lens Hood
  • Zoom Ring Lock
  • Specifications

Specifications

Focal length / aperture70‑300 mm f/4‑5.6
Lens construction14 groups, 19 elements
Maximum magnification0.21× at 300 mm

Frequently asked questions

How should I clean the lens's electronic contacts?

Use a soft cloth to gently clean the contacts if they become dirty or fingerprinted.

Can the zoom ring be locked?

Yes, the zoom ring can be locked at the widest‑angle position to prevent the lens from extending during transport.

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