Nikon, Canon, and others allow tethered shooting and sell gadgets to replace the wire with radios. Search for wireless tethering. There's often cheap alternati

Nikon, Canon, and others allow tethered shooting and sell gadgets to replace the wire with radios. Search for wireless tethering. There's often cheap alternatives too.. e.g. http://petetek.blogspot.com/2009/05/50-wireless-tethering-solution.html http://petetek.blogspot.com/2009/05/50-wireless-tethering-so...