What I can say about this lens...it's great tool in my work and it's worth every single penny. I have few lenses: wide-angle, macro, for portraits and longer telephoto, but this is my favourite.
There's many reviews of this lens and my english is not good enough, so I will show you some shots which I took with this lens and Canon 1DX.
Pros - razor sharp photos (even at 200/2.8), versatile, quick af, weather sealed.
No cons for me (maybe a white color).
Aperture - f/2.8; shutter speed - 1/6400; iso 320; focal length - 200 mm
Aperture - f/5.6; shutter speed - 1/6400; iso 500; focal length - 200 mm
Aperture - f/2.8; shutter speed - 1/6400; iso 320; focal length - 70 mm
Aperture - f/2.8; shutter speed - 1/1600; iso 500; focal length - 95 mm (cropped)
Aperture - f/2.8; shutter speed - 1/1600; iso 500; focal length - 200 mm (cropped)
Aperture - f/6.3; shutter speed - 1/160; iso 100; focal length - 200 mm
Aperture - f/2.8; shutter speed - 1/6400; iso 2000; focal length - 182 mm
Aperture - f/2.8; shutter speed - 1/1600; iso 6400; focal length - 123 mm
Aperture - f/2.8; shutter speed - 1/1600; iso 6400; focal length - 140 mm
Aperture - f/2.8; shutter speed - 1/1000; iso 6400; focal length - 102 mm
Aperture - f/2.8; shutter speed - 1/2000; iso 1000; focal length - 200 mm
Aperture - f/6.3; shutter speed - 1/500; iso 2000; focal length - 145 mm
Aperture - f/2.8; shutter speed - 1/400; iso 5000; focal length - 70 mm
Aperture - f/5.6; shutter speed - 1/640; iso 2500; focal length - 200 mm
Aperture - f/2.8; shutter speed - 1/800; iso 2500; focal length - 200 mm
Aperture - f/2.8; shutter speed - 1/1000; iso 2500; focal length - 115 mm
Aperture - f/2.8; shutter speed - 1/640; iso 2500; focal length - 70 mm
Aperture - f/6.3; shutter speed - 1/200; iso 2500; focal length - 70 mm
Aperture - f/4.5; shutter speed - 1/500; iso 5000; focal length - 145 mm
Aperture - f/3.5; shutter speed - 1/500; iso 5000; focal length - 200 mm
Aperture - f/4.5; shutter speed - 1/320; iso 5000; focal length - 200 mm
Aperture - f/4.5; shutter speed - 1/200; iso 5000; focal length - 200 mm
Aperture - f/2.8; shutter speed - 1/160; iso 3200; focal length - 70 mm
Aperture - f/5.6; shutter speed - 1/800; iso 1250; focal length - 200 mm
Aperture - f/3.5; shutter speed - 1/640; iso 100; focal length - 200 mm
Aperture - f/7.1; shutter speed - 1/800; iso 2000; focal length - 80 mm
Aperture - f/2.8; shutter speed - 1/250; iso 500; focal length - 102 mm
Aperture - f/2.8; shutter speed - 1/640; iso 1000; focal length - 185 mm
Aperture - f/3.5; shutter speed - 1/200; iso 800; focal length - 200 mm (cropped)
Aperture - f/4.0; shutter speed - 1/250; iso 500; focal length - 90 mm (cropped)
There's a lot of reviews and my english is not good enough to describe my thoughts about this camera and lens, but I noticed big difference between picture and video quality (I am still using APS-C camera - Canon 60D and I took many photos and videos too with Canon 300/4 IS and Canon 60/2.8 macro lens).
I really like low noise at high iso (2000 is barely visible, 12800 is still ok when you will reduce noise, but max and useful, without losing much quality is 6400), better DOF and picture quality (sharper images, very low level of moire).
What I don't like? Sensor is a "dust magnet", so after a thousands of shots, I see black spots at f/8.0 -f/13, especially in the corners (which is very annoying in macro with my second lens - Canon 100/2.8 L macro IS).
I want to show you unboxing video and continous shooting test (with 100/2.8 L macro IS too) and photos (with exif data).
Aperture - f/5.6; shutter speed - 1/2500; iso 1250 (raw to jpg in fsviewer, no correction, neutral settings)
Aperture - f/5.6; shutter speed - 1/2500; iso 1250 (raw to jpg in fsviewer, no correction, neutral settings)
Aperture - f/5.6; shutter speed - 1/8000; iso 1250
Sample video
First two scenes (fire) recorded without external microphone, handheld (aperture at f/5.6).
Last two scenes (cyclists) with Rode Video Mic. I used camera rig (aperture at f/5.6 in the first scene & 4.0 in the second scene).
IS on + software stabilization. No sharpening etc. I changed only level of brightness and saturation (even on neutral settings, color - especially red, is too saturated).
In my opinion, image stabilizer in this lens is not good enough for videos and this feature is better in the latest lenses (like 70-200/2.8 IS II).
Aperture - f/8.0; shutter speed - 1/640; iso 500
Aperture - f/5.6; shutter speed - 1/1250; iso 2500
Aperture - f/6.3; shutter speed - 1/6400; iso 2000
Aperture - f/5.6; shutter speed - 1/1600; iso 1000
Aperture - f/5.6; shutter speed - 1/6400; iso 2000
Aperture - f/8.0; shutter speed - 1/2500; iso 1600
Aperture - f/5.6; shutter speed - 1/1000; iso 3200
Aperture - f/5.6; shutter speed - 1/800; iso 2000
Aperture - f/5.6; shutter speed - 1/1000; iso 2500
Aperture - f/4.0; shutter speed - 1/1000; iso 1000
Video quality test.
My priority was to take photos (it was my first time on a american football match), so I recorded few scenes (handheld, no external microphone, no color correction). First generation of IS will not help too much and it's not easy to use this focal lenght. Video quality is good, but better to use this lens for photos only or on tripod/camera rig, mainly in static scenes.
Aperture - f/8.0; shutter speed - 1/1250; iso 250
Aperture - f/5.6; shutter speed - 1/2500; iso 1000
Aperture - f/4.0; shutter speed - 1/4000; iso 640
Aperture - f/5.6; shutter speed - 1/1000; iso 800
Aperture - f/4.0; shutter speed - 1/1000; iso 800
Aperture - f/4.0; shutter speed - 1/1000; iso 500
Aperture - f/7.1; shutter speed - 1/250; iso 500
Aperture - f/4.0; shutter speed - 1/200; iso 500
Aperture - f/13.0; shutter speed - 1/1000; iso 2000
Aperture - f/5.6; shutter speed - 1/250; iso 500
Aperture - f/5.6; shutter speed - 1/320; iso 5000
Aperture - f/5.6; shutter speed - 1/2000; iso 1000
Aperture - f/5.6; shutter speed - 1/2000; iso 2000
Aperture - f/5.6; shutter speed - 1/1600; iso 1000