Canon Spain lend me this beautiful and expensive lens for 3 weeks and I tested it against my 500mm f/4L IS and the 100-400 mm f/4.5-5.6L IS. With and without teleconverters.
I wrote a long test in my blog. It's in spanish, but you can translate it with Google Translate and there are plenty of images and a video.
http://blog.alamany.com/2014/05/test-canon-ef-200-400mm-f4-teleobjetivo-zoom.html
Enjoy!
Oriol Alamany
http://www.alamany.com
http://blog.alamany.com
http://www.facebook.com/oriolalamany.photography
Barcelona (Spain)
I wrote a long test in my blog. It's in spanish, but you can translate it with Google Translate and there are plenty of images and a video.
http://blog.alamany.com/2014/05/test-canon-ef-200-400mm-f4-teleobjetivo-zoom.html
Enjoy!
Oriol Alamany
http://www.alamany.com
http://blog.alamany.com
http://www.facebook.com/oriolalamany.photography
Barcelona (Spain)