Nikon D600 Settings
I always use my D600 in aperture priority mode, however when out hiking I'll also carry a tripod with me. So I do the following:
U1: Normal Use
U2: Tripod Use
3 Sec Delay after Mirror Lockup ON
(I also manually switch to the "Timer" or use a cable release)
What do you usually use the U2 for in this case?