Hi Picz, I saw your comment and thought I'd rave about the mobile phone app I use to remote activate my camera's shutter release. Then I thought, "Hey, Picz has probably checked that option and found it doesn't work'. So I googled.
Yep. Glad I did. Seems that Nikion's "
WirelessMobileUtility"
https://play.google.com/store/apps/d....wu.wmau&hl=en For Android mobile phones doesn't work with a D800. Bummer dude.
So I dove a bit deeper into the google depths and found a solution that might be something to consider.
"...Helicon Remote is a utility for tethered shooting and camera remote control..."
https://play.google.com/store/apps/d...nRemote2&hl=en
This means that with the right USB cable, you can use your mobile phone as a shutter release, a remote viewfinder, access exposure controls, auto or manual focus and more apparently.
I haven't tried the tethered option, but looks like it might be something to consider?
Cheers and hope to see you there when the clouds clear.