If you are looking for a wired release the Nikon MC-30 and MC-36 are the best options. The Nikon ML-3 IR wireless release is compatible with the D800. If you want an RF wireless release, there are many options at a wide range of price points ( from cheap e-bay triggers to Pocket Wizards). I use Pocket Wizards for their reliability and extremely long range. Good Luck and Enjoy your Nikons!