Yes, that is possible indeed. But it is not a nice iOS Camera Control Pro version that will let you do it. It is an iapp that has been on the market for 18 months now : onOne Software’s DSLR Camera Remote for iOS, iPad and iPhone. The editor just updated the application, now available in version 1.4.3 that now fully support this year’s Nikon star digital SLRs : the Nikon D800 and the Nikon D4.
DSLR Camera Remote for ipad and iphone let you manage the main settings of your camera, the focus, trigger, trigger for time lapse (like camera trigger pro for iOS), even display the histogram.
I really do wish that camera manufacturers would be more active at editing more iphone and ipad apps like an iapp that would offer your cameras user manual (Nikon does have it), an iapp to control your camera like this one…
DSLR Camera Remote works with a lot of other cameras like the Nikon D7000, D5100.. or Canon EOS 600D / Rebel T3i, EOS 60D and EOS 7D, but is limited to digital SLRs and from Canon / Nikon only. There are no compact cameras, nor mirrorless camera, nor any Sony or Pentax DSLR supported, yet.
Here is the link to the full DSLR supported by DSLR camera Remote.