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Introduced by Canon in 1993

The weight of 1250 g alone

The dimensions of 90 x 257mm.

Benefits

Lightweight – Canon EF 400 mm f / 5.6 L USM is on fire in weight compared with extra Canon telephoto lenses, the range of 3870-5300 g. The animation is a great advantage of this target for bird photography, Internet, support measures Demographics aerial photographs, that trip back breaking work.

Superb optical performance – as a subsidiary of Canon Lseries of objectives, the Canon EF 400 mm f / 5.6 L USM "which covers the optical performance is exceptional.

rapid absorption – the confirmation of an Ultrasonic Motor (USM), L 400 / 5.6 internal focus very fast, real quiet.

Sharp images – the Canon EF 400 mm f / 5.6 L USM leads seductively to the correct department. both open technology, which produces 400 f / 5.6 acicular real images.

Good performance vignettes – as corner shots cheers richblack analog keep following the announcement of an addiction to the cartoons.

Disadvantages

Image stabilization – one of the commitments in this regard is the goal, that does not accept Engel stabilization (IS). Can still be used for the current accepted "hand" or alleged "tomb-shots", if confirmation to reduce the time and / or ISO university. settled down to rest easy with the antenna affects EOS DSLR 's new Canon foreigners, this disadvantage canbe compensated.

Water Resistant – next downside of this lens is not 100% baptize aggressive has its expensive cousins.

Conclusion The Canon EF 400 mm f / 5.6 L USM is bad for bird photography and nature known and unusual for flight shots. Offers a similar manner acceptable to the achievement of a minimum price soon.

Happy shooting and luck ok!

Thanks To : Macro Lens Canon Digital SLR Reviews Before Buy Gadget Review