It has been a known problem between the Nikons and Apple. If you are using a long tethering cable e.g.: 4 Metres then the tethering will not function properly. One alternative is to buy a power booster from Tether Tools, otherwise try a 3 Metre cable, which works well with my Nikon 810

On 24 Mar 2016, at 14:50, Ivor Kerslake <[log in to unmask]> wrote:

Does anybody have any experience of shooting with a Nikon D800 tethered to a MacBook Pro using Capture One ? Try as I might I can't get the software to recognise the camera. Not sure if the problem belongs to Nikon, Apple or Phase so thought I'd float it first.
Many thanks.