Icarus Camera Control - This is an open source program for controlling digital cameras, especially those that support PTP.
digiCamControl - A DSLR camera remote control open source software Features:
qDslrDashboard - Camera tethering as easy as 123!
Smart Shooter - Software for camera remote control and tethered shooting
Entangle - Entangle provides a graphical interface for “tethered shooting”, aka taking photographs with a...
Remote DSLR Control - Control your Nikon DSLR camera remotely from a computer.