Key facts
- Brand
- Canon
- Model
- 4L IS USM
- Category
- Other Electronics
- Documents
- 5
- Languages
- ZH · EN
- Last added
- 2026-10-02
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Canon EF300mm f/2.8L IS USM, EF400mm f/2.8L IS USM, EF500mm f/4L IS USM, EF600mm f/4L IS USM Telephoto Lens User Manual
The manual explains safe handling of the high‑performance telephoto lenses, including precautions against condensation when moving the lens between cold and warm environments, and warnings about sunlight exposure and temperature extremes. It also covers basic installation, removal, and cleaning of the lens and its electronic contacts.
Detailed operating instructions cover focus mode selection (AF/MF), focal‑range settings, image‑stabilizer usage, focus‑preset functions, and the use of optional accessories such as teleconverters and extension tubes. Technical specifications for each focal length are listed, along with weight, filter size, and minimum focusing distance.
Canon 4L IS USM specifications
| Focal length / aperture | 70-200mm f/4 |
|---|---|
| Lens construction | 11 groups, 16 elements |
| Maximum aperture | f/4 |
| Minimum aperture | f/32 |
| Horizontal angle of view | 29°‑10° |
| Vertical angle of view | 19°30′‑7° |
| Diagonal angle of view | 34°‑12° |
| Minimum focusing distance | 0.6 m |
| Maximum magnification | 0.28× (200 mm) |
| Filter diameter | 77 mm |
| Maximum diameter × length | ≈83.5 mm × 119 mm |
| Weight | ≈695 g |
| Lens hood model | ET-83G (WIII) |
| Lens cap model | E-77 II |
| Soft case model | LP1319 |
All Canon 4L IS USM documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
- Canon RF70-200mm F4 L IS USM User Manual 2 p
- Canon EF70-200mm f/4L IS USM Lens User Manual 16 p
- Canon EF300mm f/4L IS USM Lens User Manual 15 p
- Canon EF24-105mm f/4L IS USM Lens User Manual 14 p
- Canon EF300mm f/2.8L IS USM, EF400mm f/2.8L IS USM, EF500mm f/4L IS USM, EF600mm f/4L IS USM Telephoto Lens User Manual 22 p
Questions answered in these manuals
How should I prevent condensation when moving the lens from a cold to a warm environment?
Place the lens in a sealed plastic bag before allowing it to warm, then remove it once it has gradually reached room temperature.
How do I turn the image stabilizer on or off?
Set the image stabilizer switch to ON to enable stabilization, or to OFF to disable it.
How do I attach the lens hood?
Rotate the hood onto the front of the lens until it clicks into place.
What is the minimum focusing distance of this lens?
The closest focusing distance is 12 meters.
Can I look at the sun through this lens?
No. Looking at the sun through the lens can damage your eyesight and the lens.
What focus mode should I select for manual focusing?
Set the focus mode switch to MF (Manual Focus) and rotate the focusing ring as needed.