Canon EF 400mm f/5.6L USM Lens

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Item: 301299
Manufacture: Canon
Condition: New
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Price: $1,149.00 $1,739.00
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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 EF lens is compatible with both full-frame and cropped-frame Canon SLR cameras, though on the latter the lens will have an effective field of view of approximately 640mm.

Canon's L-class lenses typically offer excellent resistance to chromatic aberration, and the 400mm ƒ/5.6L is no exception. On both the sub-frame 20D and full-frame 5D, CA performance is practically identical: at no time do we detect more than 3/100ths of a percent of frame height of chromatic aberration. If you are really concerned about CA, performance is better with the lens wide open at ƒ/5.6 and gets very slightly poorer as you stop down.

Name Canon EF 400mm f/5.6L USM
Image Circle 35mm
Type Telephoto Prime
Focal Length 400mm
APS Equivalent 640mm
Max Aperture f/5.6
Min Aperture f/32
Diaphragm Blades 8
Lens Construction 7 elements in 6 groups, including 1 UD and 1 S-UD element
Diagonal Angle of View(Based on image circle) 6.2 degrees
Focus Details Inner focusing; full-time manual focus and USM
Front Element Rotation No
Zoom System n/a
Closest Focus 3.5m / 11.5 ft.
Magnification Ratio 0.12x / 1:8.3
Filter Size 77mm

• E-77U 77mm Snap-On Lens Cap
• Lens Dust Cap E (Rear)
• Tripod Mount Ring A-2 for 70-200mm f/4L