The Canon EF 200-400mm f/4L IS USM Lens with Internal 1.4x Extender is a high performance telephoto zoom lens with an internal built-in 1.4x extender that converts the focal range and maximum aperture to 280-560mm f/5.6. The extender can be found at the base of the lens and controlled with a simple lever switch. The EF 200-400mm f/4L IS USM Extender 1.4x features Canon’s pioneering ring-type Ultrasonic Motor providing fast, silent autofocusing. For those who prefer to fine-tune focus themselves, full-time manual override allows photographers to manually focus at any moment when using AF. The Power Focus (PF) mode also increases versatility during movie shooting with the EOS-1D C or EOS-1D X, enabling photographers to achieve an accurate pull-focus effect at one of two speeds, simply by twisting the focus recall ring and stopping at a pre-set distance.
Designed to answer professional demands for superior image quality and versatile zoom range, the EF 200-400mm f/4L IS USM Extender 1.4x a boasts a premium-quality design befitting Canon’s industry-renowned L-series lenses. Fluorine coatings on the front and rear lens elements also reduce the ability of dirt to cling to the lens surface, while a dust and water-resistant construction allows photographers to shoot in challenging weather conditions.
- Built-in 1.4x extender, for extra magnification when you need it
- Shoot in low light with four-stop Image Stabilizer
- High image quality using Fluorite lens elements
- Fast AF with USM technology
- Robust design for use in the toughest environments