Canon EF 400mm f5.6 L USM
Canon EF 400mm f5.6 L USM Specifications and Review
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| Model | Canon EF 400mm f5.6 L USM |
| Link to Current Pricing | EF 400mm f5.6 L USM |
Production Dates  |
1993 - current |
| Comments | A very nice, sharp, fast focusing lens. Great for tracking birds in flight and motor sports. Many wish that an IS version was available, but that would boost the cost to maybe $1600. Faster focus than a 300/4 + 1.4x TC. |
| Field of View
(degrees) Horizontal,Vertical, Diagonal Full Frame - 36x24mm APS-C - 22.5x15mm |
Full Frame : H - 5.2 : V - 3.4 : D - 6.2 APS-C : H - 3.2 : V - 2.1 : D - 3.9 |
| Full Frame FOV equivalent with lens on APS-C body |
640 mm (1.6x multiplier) |
| Full Frame FOV equivalent with lens on APS-H body |
520 mm (1.3x multiplier) |
| Length | 256 mm (10.08 inches) |
| Weight | 1250 gm (42.27 oz.) |
| Maximum Diameter | 90 mm (3.54 inches) |
| Lens Mount Material |
Metal |
| Lens Color |
White |
| Filter Size | 77 mm |
| Filter Rotation |
Filter does not rotate |
| Focusing |
Internal Focusing (Length constant) |
| Focus Range Setting(s) |
Yes, has selectable focus range(s) |
| AF motor |
USM |
| Distance Scale | Yes, has distance scale |
| Closest Focus | 3.5 m (11.48 ft) |
| Maximum Magnification | 0.11x |
| EF12 magnification range |
0.16x - 0.03x |
| EF25 magnification range |
0.21x - 0.07x |
| Canon TC compatibility |
Yes, Canon TCs can be used |
| Weathersealing |
Not weathersealed |
| Lens Hood |
Built-in |
| Tripod Mount |
Tripod Mount Ring A |
| E-TTL II Support |
Yes |
| Elements/Groups |
7/6 |
| Special Glass Elements |
Yes, 1 UD element, 1 super UD element |
| Diaphragm Blades |
8 |
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