The Nikon D5 DSLR camera is rumored to have a native high ISO of 102,400. The current D4s can go up to ISO 25,600 (expandable till ISO 409,600). Here is an updated list of rumored D5 specs:
- New 20MP FX sensor
- 4k video
- 173 autofocus points (update: new focusing module with larger coverage)
- Native high ISO of 102,400
- 15 fps
- Body design similar to the D4s
- Announcement expected in late 2015 or in early 2016.
Regarding the Nikon D5 processor and 4k video: for the past few years the Nikon Expeed image processor was based on the Fujitsu Milbeaut ISP. On March 1st 2015, Fujitsu transferred its System LSI business to Socionext Inc. Shortly after the transfer, Socionext announced a new MN2WS03101A chip with 4k video capabilities: