Patent ID: 8885087

Claim:
A lens system comprising: a lens apparatus including a first member whose position or state is continuously variable and a second member whose position or state is discontinuously variable; and a commanding apparatus that outputs a command signal to the first member and the second member, wherein the lens apparatus includes: a first wireless communication unit that performs wireless communication through a master/slave communication system; a first setting unit that sets the first wireless communication unit as a slave when the lens apparatus is initialized; a driving controller that generates first data regarding the position or state of the first member and second data regarding the position or state of the second member; and a data reduction unit that reduces the first data, but does not reduce the second data, wherein the lens apparatus sends the first data and the second data to the command apparatus, and wherein the commanding apparatus includes: a second wireless communication unit that performs wireless communication through the master/slave communication system and communicates with the first wireless communication unit; and a second setting unit that sets the second wireless communication unit as a master when the commanding apparatus is initialized.