| Announced | 2010-09-01 |
| Indicative price (USD) | 10499 |
| Aperture | f/2.8 |
| Focal range (mm) | 400 |
| Filter diameter (mm) | 52 |
| Max diameter (mm) | 163 |
| Mount type | Canon EF |
| Stabilization | Yes |
| AF Motor | USM |
| Zoom type | / |
| Rotating front element | |
| Tripod mount | Yes |
| Color | White |
| Full-Time manual focus | Yes |
| Number of lenses | 16 |
| Number of groups | 12 |
| Diaphragm blades | 9 |
| Circular aperture | Yes |
| Length (mm) | 343 |
| Weight (gr) | 3850 |





To provide photographers with a broader perspective about mobiles, lenses and cameras, here are links to articles, reviews, and analyses of photographic equipment produced by DxOMark, renown websites, magazines or blogs.
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There are only a small proportion of photographers who can really justify buying a lens that costs the same as a small car, but if you really need a 400mm f2.8 lens then the chances are that you are going to get yourself one. To stick with the motoring analogy: Canon’s EF 400mm f2.8L IS II USM is not at all like a small car, it is rather more like a Formula 1 Racing car. |
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With the vagaries of photographing wildlife, the flexibility of a telephoto zoom would appear to be an attractive solution. However, image quality is often a compromise at the maximum aperture and longest focal length, typically the most crucial settings. We’ve pulled some lens data from our database and put together a round up of popular zoom lenses over the years (and made some comparisons with high performance primes). Read on to find out which models have the best image quality. |