Sofortbild is a native Mac OS X application for tethered shooting.
Sofortbild allows you to control any Nikon D3x, D3, D700, D300, D200, D90, D80, D60, D40x and D40 remotely from your Mac via USB or through wired or wireless LAN using a wireless transmitter (on selected models).
Sofortbild transfers all captured images instantly to your hard disk for review in full resolution and quality and further image processing.
In case you are stuck to an older version of Mac OS X, feel free to download version 1.2.11 of Sofortbild from Related Links. It should still work on Mac OS X Leopard (10.5.x).