Outstanding image quality; 4K all the way; Bulging with buttons;

Baby battery; Where’s the Wi-Fi?; Temperamental touchscreen;

Take each little incremental change by itself, and the 1DX II doesn't really look like a leap forward from the original. Add them all together, though, and you've got a very tempting upgrade, or step up if you're shooting on a 5D.

Outstanding image quality; 4K all the way; Bulging with buttons

Baby battery; Where's the Wi-Fi; Temperamental touchscreen

The big boss is back for round two: the Canon EOS 1D X Mark II is the company's top-end full-frame DSLR, which replaces both the original 1D X and video-focused 1D C models. And it really is one serious bit of kit, as we've been finding out during a couple of days' shooting for this review - from...

Super-fast autofocus system is world class in continuous autofocus; great image quality; fastest-on-market 14fps burst with seemingly endless buffer (using CFAST card); decent battery life; solid construction as ever

No vari-angle screen (like Pentax); no clean HDMI output for 4K video; would like broader spread of AF points throughout finder; image quality limitations at super-high ISO

Both Nikon and Canon have unleashed top-notch, pro-spec DSLRs for 2016, just as anticipation for the huge sporting events kicking off this summer hit fever pitch.

If getting the shot is of utmost importance to you, a Canon 1-Series body should be a high-ranking option on your very short shopping list. Canon 1-Series bodies have long represented the pinnacle of camera performance and reliability.

The EOS 1DX Mark II is Canon's latest top-of-the-line full-frame professional-level DSLR. It features a 20.2 million pixel sensor, which is an upgrade from the 18 million pixel sensor that the 1DX had.

The new Canon EOS 1D X Mark II is an update to the 18 megapixel 1D X and the camera features an all-new 20.2 megapixel full-frame CMOS sensor with dual pixel CMOS AF, as well as a built-in analogue to digital converter for improved readout speed, better dynamic range and noise performance.

4K DCI resolution video at 60/50fps; High-speed FullHD video recording; Warm or White AWB options; Better battery life than expected; 14fps continuous shooting with AF/AE; 16fps continuous shooting with mirror up; Headphone / Microphone sockets; Excellent noise performance; Excellent image quality,...

Large; heavy; with a loud shutter; Touch-screen can't be used in playback; Mono microphone recording; Wi-Fi not built-in

The Canon EOS-1D X Mk II is a replacement not just for the original 1D X, but also for the EOS-1D C pro video camera. And while in some areas the Mk II seems like a modest upgrade of the tech in the 1D X, in others it breaks entirely new ground.