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Canon EF 400mm f/4 DO IS USM Pro Reviews

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The-Digital-Picture‘s review Edit

The Canon EF 400mm f/4.0 DO IS USM Lens is Canon's first DO (Diffractive Optics) lens - yielding 400mm f/4 IS performance in a relatively small and light handholdable package. Small and light are of course relative. The difference between it and the 300 f/2.8 feels even bigger than the 1.3 lb (610g) spec difference indicates.
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Published on:
Sep 14, 2007
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