Fujifilm is the latest mirrorless camera manufacturer to add support for 4K 10-bit 422 external HDMI recording. The new 5" Atomos Ninja V HDR monitor/recorder takes full advantage of the Fujifilm's X-T3's 10-bit DCI Cinema 4kp60 (4096 x 2160) resolution HDMI 2.0 output and can record directly hi-res codecs Apple ProRes or Avid DNx.
Fujifilm claims the X-T3 now has the largest sensor of any mirrorless camera that can output to sought after 10-bit 4kp60 resolution and framerate (recently announced full-frame mirrorless cameras by rivals Nikon and Canon offer 10-bit 4kp30).
Previous Fujifilm cameras have had 8-bit color and this step up to 10-bit offers a much larger number of colour combinations. This is massively beneficial for production pros when color grading, manipulating the image or chroma keying.
Typically users will see smoother color gradients, eliminating the commonly seen banding in areas with gradual tone change such as blue skies. Recording to an Atomos recorder preserves this information in the best way possible says Atomos.