Finally we are getting confirmation that Nikon is working on Nikon D5 4K 3min video recording limit and they will soon extend upto 30min, a firmware update coming on March 2016.
BTW the Nikon D500 have no such issue, it can record 4K videos upto 30min.
Also see – Nikon D5 Field Review by Ole J Liodden
siurce – NR.com
This is interesting. The D5, most expensive camera that Nikon makes, $6500.00, and it was just released, and it has less 4K video time than the lesser expensive D500, and needs a firmware update due in March 2016. Firmwares are common with Nikon. No one is going to complain about a firmware improvement. But this should have been done before releasing the D5. A lot of amateur photographers don’t like doing firmware updates, fearing something may go haywire. So they take it to an authorized Nikon Service facility. Everyone is not a computer guru. The Nikon D7100 has a firmware update just late last year, among others. I suppose if you don’t trust doing this update yourself, a Nikon Service facility will do it under warranty. Perhaps anyone owning such an expensive camera, from past experience, should be able to do firmware blindfolded via computer.