Just posted: Canon EF 200-400mm f/4L IS USM Extender 1.4x review


Just posted: Our quick review of the Canon EF 200-400mm f/4L IS USM Extender 1.4x: the world’s first SLR lens with a built-in switchable teleconverter. It’s been two years in the making, but when Canon offered to show us a production version of its professional super-telezoom, we couldn’t help but be intrigued. In this review we’ve teamed up with DxOMark to bring you full optical test data of this unique lens, backed up by some quick real-world examples. So how does it perform? Click below to find out.


Hooman  Khosravi

the real t-stop is 4.7 not 4


We will see many pro use this lens in next year’s Winter Olympic game and WorldCup.


…Now, where did I put that card from those thick-accent, dark-glasses nice gentlemen I met in a parking lot, the other night…What was the outfit name again…?…”Less Kidney 4 Fun”?…”Kidneys’r’Us”…?…Darn, my memory isn’t the same it used to be…


Dear Santa…


Nice lens. If I win the Euromillions I’ll put my name down for one.


Nice glass.

Source Article from http://www.dpreview.com/news/2013/06/25/just-posted-quick-review-canon-ef-200-400mm-f4l-is-usm-extender-1-4x-lens-with-built-in-teleconverte

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