Overview
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 has a built-in hood and a detachable tripod mount.
- 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.
Features:
- Super UD and UD Glass Elements - One Super UD-glass element, whose characteristics are similar to fluorite and one UD-glass element minimize aberrations and result in sharp pictures from corner-to-corner.
- Ultrasonic Autofocus Motor - An Ultrasonic Autofocus Motor (USM) provides fast, smooth and quiet autofocus.
- Focus Range Limiter - On the 400mm f/5.6 lens you can choose the focusing distance range with a switch on the lens barrel. By setting a suitable focusing distance range, actual autofocus time can be shorter. The two focusing ranges are 11.5' to infinity and 27.9' to infinity.
- Manual Focus Override - Full-time manual focus override allows you to use manual focus mode for precision focusing at any time, even when in autofocus mode.
- Detachable Tripod Collar - The 400mm f/5.6 lens includes a removable, rotatable tripod collar for stable and secure tripod mounting.
- Built-in Lens Hood - A built-in lens hood deflects stray light, reducing flare.
Panel Features:
What's in the Box?
- Canon EF 400mm f/5.6L USM Lens
- E-77U 77mm Snap-On Lens Cap
- Lens Dust Cap E (Rear)
- Tripod Mount Ring A-2 for 70-200mm f/4L
- LZ1132 Pouch Case
- Strap for Case
MTF Charts
Modulation Transfer Function or "MTF" is a measurement of the optical performance potential of a lens.
Setting the Lens
- Mounting and Detaching the Lens
- Setting the Focus Mode - To shoot in autofocus (AF) mode, set the focus mode switch to AF. To use only manual focusing (MF), set the focus mode switch to MF and focus by turning the focusing ring. The focusing ring always works, regardless of the focus mode
- Switching the Focusing Distance Range - You can choose the focusing distance range with a switch. By setting a suitable focusing distance range, actual autofocusing time can be shorter
- Infinity Compensation Mark - To compensate for shifting of the infinity focus point that results from changes in temperature. The infinity position at normal temperature is the point at which the vertical line of the L mark is aligned with the distance indicator on the distance scale.
- Infrared Index ( EF200mm f/2.8L II USM, EF300mm f/4L USM,EF400mm f/5.6L USM) - The infrared index corrects the focus setting when using monochrome infrared film. Focus on the subject manually, then adjust the distance setting by moving the focusing ring to the corresponding infrared index mark
- Depth-of-Field Scale - The depth of field is the distance in front of and behind the plane of focus on the subject that appears sharp. The depth of field is indicated by the area between the depth-of-field scale lines below the distance scale.
Using the Tripod Mount
The tripod mount can be attached or detached from the lens while the lens is attached to the camera
- Turn the locking knob counterclockwise until it becomes loose (about 3 turns), and pull the knob in the direction of the arrow to release the collar
- With the collar open, remove the tripod mount
- To install, while pulling the locking knob,bring the collar to the original position and tighten the locking knob securely
Sample Image
Specifications:
- Focal Length & Maximum Aperture................. 400mm 1:5.6
- Lens Construction................................. 7 elements in 6 groups
- Diagonal Angle of View ................6° 10'
- Focus Adjustment...........................Inner focusing system with USM
- Closest Focusing Distance .................3.5m / 11.5 ft.
- Filter Size ............................................. 77mm
- Max. Diameter x Length, Weight ................ 3.5" x 10.1", 2.8 lbs. / 90.0 x 256.5mm, 1250g