see also:

• Nikon F dSLR system

• full frame pro dSLR announced Jan 2016 aimed at low light, action photojournalists as major upgrade from their Nikon D4s sports dSLR

• 12fps 20.8mp with native ISO range, from 100 to 102,400
• EXPEED 5 processor
• all-new autofocus module with 153 points, 99 of which are cross-type
• 4K video but only in cropped mode and up to 3min duration
• touchscreen LCD
• support for Nikon's new radio TTL flash functionality
• $US6500

• dpreview look at sensor qualities
  • disappointingly poor dynamic range at base ISO
• https://www.dpreview.com/reviews/nikon-d5-pro-dslr-review