This high-performance lens was designed with portability and handling ease in mind. One super UD-glass element - whose characteristics are similar to fluorite - and one UD-glass element result in sharp pictures from corner-to corner. The lens also includes a built-in hood and a detachable tripod mount.
Canon EF 400mm f5.6 L USM Lens: Key Features L-series construction and optics Large focal length compact size One UD and one super UD lens element Fast, quiet USM autofocus Super Spectra coatings 77 mm filter size Built-in lens hood
Compact lightweight super-telephoto
This high-performance lens was designed with portability and ease of handling in mind. The EF 400mm f/5.6L USM features a UD (ultra dispersive) element and one super-UD element, whose characteristics are similar to fluorite. This combination results in sharp pictures from corner-to corner. The lens also has a built-in hood and a detachable tripod mount. L-series quality
The L-series is Canon's flagship professional lens range, representing the best in precision-designed EF optics. L-series lenses combine superior performance with superlative handling, and are resistant to dust and moisture. Ultrasonic focusing
A ring-type ultrasonic motor drives autofocus extremely quickly, and in near silence. Excellent holding torque ensures the point of focus is reached accurately, without overshooting. Furthermore, full-time manual override is available, making it possible to adjust focus without leaving AF mode. Super Spectra coating
Super Spectra coatings ensure accurate colour balance and enhance contrast. They also reduce flare and ghosting – a common problem caused by light bouncing off a camera's sensor.
SPECIFICATIONS Aperture Blades 8 Autofocus Motor USM Colour White Enlargement Ratio 1:8.3 Filter Thread Size (mm) 77 Focal Length – Tele (mm) 400 Focal Length – Wide (mm) 400 Lens Mount Canon EF Lens Type Telephoto Prime Manual Focus Switching Yes Maximum Aperture – Tele 5.6 Maximum Aperture – Wide 5.6 Minimum Aperture 32 Number of Lens Elements 7 Number of Lens Groups 6 Sensor Format Full Frame Size (mm) 90 x 256.5 mm Teleconverter Compatibility 1.4x & 2x Weight (g) 1250 MF switch Yes Minimum Focus Distance (m) 3.5