Reviews and Problems with Canon EF 100-400mm f/4.5-5.6L IS USM
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Canon EF 100-400mm f/4.5-5.6L IS USM Lens Review
SLR Lens and Camera Reviews
23 April 2011
Excerpt: Canon EF 100-400mm f/4.5-5.6L IS USM is the longest telephoto zoom lens currently manufactured by Canon. First released back in late 1998, the lens currently retails around US$1,600 (as of October 2010) and is typically used for wild-life and sports photography.
Conclusion: A popular lens that that is superficially well built but has a few quirks and an Achilles heel in the bearing problem. It is probably worth buying any extended warranty that is offered with it.
Pros: Good contrast and colour., Good AF speed that is quiet in use., Nice focal range at acceptable 3:1 ratio, Holds its value well
Cons: Awkward manual focus at longer focal lengths, Known problem with bearings giving up the ghost, Wear in the bearings may well cause deterioration in performance., May drag dust into the sensor.
Conclusion: About 10 years ago I looked at an EF 100-400/4.5-5.6L IS and I wasn't too impressed. It was good, but it wasn't as good as a 300/4L. Since many users had reported very good results with their 100-400IS lenses I thought I should give it another chance.
Conclusion: If the Canon 100-400 mm USM IS was equipped with the second generation stabilization system, allowing to work with 4 EV efficiency, and a bit better coatings we would pronounce it to be an ideal lens – for many applications even unique.
Cons: weak performance against bright light,, image stabilization not efficient by today’s standards
Canon EF 100-400mm f/4.5-5.6 USM L IS - Full Format Review / Test Report
8 November 2008
Conclusion: The Canon EF 100-400mm f/4.5-5.6 USM L IS is almost a boring lens but in a positive sense. It shows no extreme weaknesses nor strengths. You will find sharper lenses - primes that is - but it is very sharp for a zoom lens, especially considering its 400mm, and that's throughout the range at all...
Canon EF 100-400mm f/4.5-5.6 USM L IS - Review / Test Report
21 May 2008
Conclusion: The Canon EF 100-400mm f/4.5-5.6 USM L IS is a very good performer with few weaknesses ... that's assuming you get a good sample - the first tested sample was mediocre whereas the second one performed very fine.
Excerpt: Профессиональный длиннофокусный зум-объектив для самых сложных видов съемки. Небольшие габариты и вес оставляют возможность ручной съемки с рук. Фокусировка при помощи задней группы линз, «плавающая» система линз, встроенный стабилизатор изображения и USM-привод, элементы из флюорита и UD-стекла,...
Conclusion: Выводы и критика были бы намного жестче, не будь Canon EF 100-400/4.5-5.6 L по-своему уникальным предложением в линейке объективов компании. Уверен, что Canon EF 200-400/4L IS USM выступает намного убедительнее во всех дисциплинах, а Canon EF 70-300/4-5.6L IS превосходит героя обзора по резкости, но...