The EF 400mm f/5.6L USM Lens from Canon is a high-performance telephoto prime lens designed with portability and easy handling in mind. One super UD-glass element and one UD-glass element minimize aberrations and result in sharp pictures. The lens also has a built-in hood and a detachable tripod mount.
An ultrasonic autofocus motor (USM) enables fast, smooth and silent autofocus and fulltime manual override allows for precise manual focus even in autofocus mode. A two stage focus range limiter is supported by this lens and is applied by a switch on the lens barrel. By limiting the range of focus distance, you can reduce autofocus time and establish focus quicker on the subject within that range. The minimum focus distance for this lens is 3.5m.
A built-in lens hood to minimize flare and a removable, rotatable tripod collar for stable and secure tripod mounting are provided by this lens. The lens is also compatible with Canon EF1.4x II and EF2.0x II extenders.
Lens Type: Telephoto Prime
Focal length - wide (mm): 400
Focal length - tele (mm): 400
Max aperture – wide: 5.6
Max aperture – tele: 5.6
Minimum aperture: 32
Minimum focus distance (m): 3.5
Image stabilization: No
Sensor format: Full Frame
Lens mount: Canon EF
Lens elements: 7
Lens groups: 6
Aperture blades: 8
Enlargement Ratio: 1:8.3
Autofocus motor: USM
MF switch: Yes
Tele-converter compatibility: 1.4x & 2x
Filter thread (mm): 77
Size: 90 x 256.5 mm
Weight (g): 1250
