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Web Code: 010CAN090  •  Mfr Code: 2526A004
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CANON EF 400MM F5.6 L USM is rated 4.8 out of 5 by 30.
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Product Highlights
  • High-performance Lens
  • Inner Focusing System with USM
  • 7 Elements in 6 Groups
Read More
  • High-performance Lens
  • Inner Focusing System with USM
  • 7 Elements in 6 Groups
  • Filter Diameter - 77mm
  • 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
  • Diagonal Angle of View: 6&deg 10'
  • Closest Focusing Distance: 3.5m / 11.5 ft.
  • Maximum Aperture: f5.6
  • Max. Diameter x Length: 3.5" x 10.1" / 90.0 x 256.5mm
  • Weight: 2.8 lbs. / 1,250g
  • Lens also has a built-in-hood and detachable tripod mount

Lens Performance

Lens Type: Digital SLR Lenses
Focal Length: 400mm
Maximum Aperture: f/5.6
Aperture (Max. & Min.): Max: f/5.6
Camera Mount Type: Canon EF
Camera Format: Full-Frame
Angle of View: 6 degrees
Minimum Focus Distance: 3.5m
Maximum Close-Up Magnification: 0.12x
Groups/Elements: 6 Groups/7 Elements
Diaphragm Blades: 8

Lens Features

Image Stabilization: No
Autofocus: Yes
Tripod Collar: Yes


Filter Thread: 77mm
Dimensions (DxL): 3.5x10.1"
Weight: 1.25kg

Additional Information

Warranty: 1 year manufacturer warranty
Rated 5 out of 5 by from sleeper telephoto This lens has to be one of the best values at or above 300mm. My first long telephoto and I still use it. No IS and no big aperture, but in daylight you can get some great images. I've captured a number of dragonfly with this lens and honestly I wouldn't use anything else. If I asked canon to change anything about this lens it would be to have a little closer focus. I've thought about having IS on it but honestly one of the reasons it is so sharp is that it does not have too many elements. With modern high ISO/low noise bodies, I think I can live without IS on this lens - it's not too heavy and the most hand-holdable of the super telephotos.
Date published: 2013-09-24
Rated 5 out of 5 by from Totally Awesome Lens! I have owned and used this lens for about 5 years now and it is almost always on my camera! Sure, it is a bit heavy, but I have no problem walking around all day with it on my camera around my neck. I do a lot of Eagle and wildlife photography, so this lens is a fantastic tool! This lens produces Razor sharp images at every setting from f5.6 to f/32 if you have enough light and a steady hand of tripod. Even indoors at wide open aperture and slow shutter speeds I have been able to take amazing portraits from a distance during Orchestra Concerts using stage lighting. I would and do Highly Recommend this lens to everyone!
Date published: 2012-11-23
Rated 5 out of 5 by from Excellent lens I do mostly bird photography and used the 100-400 zoom for years, but was never satisfied with the IQ. I was shooting wide-open at 400 most of the time - when that lens is at its weakest. I bought the 500 mm f4 and love it dearly, but it is just to heavy for walk-around birding. After reading a number of reviews I bought the 400 5.6 and couldn't be happier. The IQ IMHO is amazing and rivals the 500. Don't use the extenders (would lose autofocus on the xxD bodies), so it's not for real distance subjects, but I have taken many razor sharp images with this lens and my % keepers is much higher than with the 100-400.
Date published: 2009-11-26
Rated 5 out of 5 by from Great bird lens This is one fine lens. For those wishing to photograph birds this is the lens to start with and keep on using for a long time. With the smaller crop factor sensors on the Rebel series just put the camera on the lens and never take it off.This lens becomes the equivalent of a 640 mm lens on these smaller sensor cameras. For the price and quality, the 400 mm/5.6 is unparalleled. Auto-focus capture is quick and accurate. The only drawback to this lens is that it doesn't have image stabilization, but you really don't need it. The images are tack sharp. This is the best bird lens for the money on the market today.
Date published: 2012-11-09
Rated 5 out of 5 by from Wonderful lens! I have owned this lens for over a year now and I absolutely Love it! In fact this lens has been on my camera more than any other L series lens I own lately! This lens is a bit heavy and bulky, but it is a lens that I have been able to hand hold to get spectacular Bald Eagle photos with, even Eagles in flight! Teamed up with a 1.4X L series extender I got some spectacular photos of the latest "Super Moon". The only problem I have had with this lens is that a few months ago I slid the built in lens shade back so that I could store the lens in it's case. The shade stuck back for some reason, so I can't slide it fully forward. If you are looking for a Great Telephoto lens in the 400 mm. size this lens is for you!
Date published: 2011-03-22
Rated 5 out of 5 by from Razor sharp I purchased this lens to replace my old lens (70-300mm) that does a reasonable job for the distance from 1 (closest focusable range) to 5 meters. Further than that range, the focusing ring is very sensitive resulting in mis-focused picture. Then, I looked for something that will resolve this issue. I decided to go to the 400mm range and there were 2 choices available, the zoom and this prime lens. I had a hard time choosing the one that fit me best and I think I made a right choice with this lens. I'm an amateur bird and natural photographer and I found that it does satisfactory job. The only cons is that the lens have no IS. However, along with a sturdy tripod and shutter release cable, it produces a razor sharp shot. You'll never regret having this lens.
Date published: 2008-11-26
Rated 5 out of 5 by from Perfect 400mm lens- just add IS, please I second everything positive that was already said on "The Luminous Landscape" about this lens. The comparison with the 100-400 mm zoom is hard to avoid. I have used both lenses. The 400mm is sharper then the 100-400 at the 400mm end and much more lightweight and portable and quicker to use with the built-in lens hood, which should really be a feature of all lenses above 100mm. Yes, the 400mm performs best on a tripod, monopod or stabilized on a bean bag. It is not for images from a moving or idling vehicle! This should be the first lens for a starting bird photographer (the next being the 4/500 IS). It is not "getting old" as one camera magazine classified it. Please Canon, keep it in the line-up, just possibly add IS. A great lens!
Date published: 2010-09-20
Rated 5 out of 5 by from Great for birds in fly. 3 years ago, i used it with 40D and I was very glad on tripod and live vieuw. In 2009, I had discovered a better quality with my 5DII. In 2010, I shoot birds in fly with my 1D4 and the AF works perfectly. More the quality of the bodies goes up, more I have pleasure with this lens and less I need IS. When used with the extender EF1.4X III, the chromatic aberration is the half of the EF 1.4X II. After correction of the C.A., the difference of sharpness, between the 2 configurations, is difficult to see.
Date published: 2011-01-13
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