Okay, lets get this out of the way...there are very few people who have the cash or work volume to justify owning a lens like this. For the rest of us, its makes far more sense to rent the Canon 400mm 2.8 IS II. There are a ton of applications for this lens such as sports, wildlife, etc. There are quite a few where this is the only tool that will get the job done and that's likely why you're here.
In Canon's last series of super-telephoto revisions, the upgrade to 400mm IS was the most dramatic. Canon managed to shave about a third of the weight off this lens compared to it's predecessor. The version I 400 f/2.8 lens weighed about 12lbs and was a total pig to lug around. The IS II on the other hand, tips the scales at just over 8lbs. That 4lbs may not sound like much on paper, but TRUST ME, that weight savings is crazy! You'll be faster and more agile when you trek with this lens for the perfect shot.
The improvements to the 400mm f/2.8 IS II didn't end at simple weight savings. Canon made vast improvements in the AF and image stabilizaion departments. The 400mm f2.8 II has an incredible IS system that's good for nearly 4-5 stops of correction. If you're adhering to the recipriocal focal length/shutter speed rule, with IS engaged you'll be safe at totally mental shutter speeds of 1/20th to 1/30th of a second. In fact, you're more likely to have blurred shots due to subject moment than due to a shaky hand at those speeds. Canon also introduced a new "third" IS mode which is only active the moment you fully press the shutter button, in other words the IS is only on when you really need it. This helps save battery life in your camera.
Optically, Canon worked hard to get rid of chromatic aberrations (highlight fringing) and wide-open vignetting. From our tests its almost impossible to find fault with this lens beyond operator error. Once you take a peek at your images you'll find that you've really reached another level of image quality (honestly, because we hate that cliche)!
When you rent the 400mm f/2.8 IS II from us we'll ship it to you in a Tenba Long Lens Case so that you'll have something to shoulder carry the gear on location. We also include a wimberly/arca swiss style plate so you'll be ready to mount to your ball head or gimbal of your choice.
If you're dying to get ahold of something with this amount of reach but the 400mm 2.8 is just a bit out of your price range, don't forget the Canon 400mm f/4 DO IS or the much smaller Canon 400mm f/5.6L.
|Focal Length & Maximum Aperture||400mm 1:2.8|
|Lens Construction||16 elements in 12 groups (Including drop-in rear filter, Fluorite: G2 and G4, UD Lens: None)|
|Diagonal Angle of View||6° 10'|
|Focus Adjustment||Inner focusing system, with focusing cam|
|Closest Focusing Distance||2.7m / 8.86 ft.|
|Filter Size||52mm Drop-In|
|Max. Diameter x Length, Weight||6.4 x 13.5 in, 135.8 oz. / 163.0 x 343.0mm, 3850g