Key facts
- Brand
- Canon
- Model
- EF135MM
- Category
- Other Electronics
- Industry
- Electronics
- Documents
- 2
- Languages
- ZH · EN
- Last added
- 2012-03-20
Start here

Canon EF135mm f/2L USM, EF200mm f/2.8L II USM, EF300mm f/4L USM, EF400mm f/5.6L USM User Manual
The manual covers safe handling, installation and removal procedures, and proper use of the EF135mm f/2L USM, EF200mm f/2.8L II USM, EF300mm f/4L USM, and EF400mm f/5.6L USM lenses. It includes warnings about bright light, temperature limits, and hazardous materials, as well as detailed diagrams for mounting and tripod adapters.
Operational sections describe the various autofocus modes (One‑Shot AF, AI Servo, Manual Focus), minimum focusing distances, depth‑of‑field scales, and the lens specifications such as focusing range, maximum magnification, and weight.
Canon EF135MM specifications
| Focal length / aperture | 135 mm, f/2.8 |
|---|---|
| Lens construction | 6 groups |
| Minimum aperture | f/32 |
| Minimum focusing distance | 1.3 m |
| Maximum magnification | 0.12× |
| Filter thread diameter | 52 mm |
| Weight | 390 g |
Source: Canon EF135mm f/2.8 User Manual
All Canon EF135MM documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
What should I avoid looking at through the lens?
Do not look at the sun or other bright light sources through the lens, as it can damage your eyes.
What is the minimum focusing distance of this lens?
The minimum focusing distance is 1.3 meters.
What safety precautions should be taken when using these lenses?
Avoid pointing the lens at bright light sources, keep it away from high temperatures, and handle contacts carefully to prevent damage.
From: Canon EF135mm f/2L USM, EF200mm f/2.8L II USM, EF300mm f/4L USM, EF400mm f/5.6L USM User Manual
What are the available autofocus modes?
The lenses support One‑Shot AF, AI Servo (continuous) AF, and Manual Focus (MF) modes.
From: Canon EF135mm f/2L USM, EF200mm f/2.8L II USM, EF300mm f/4L USM, EF400mm f/5.6L USM User Manual
