Patent ID: 8289442

Claim:
A television camera system comprising: a television lens apparatus and a television camera apparatus; the television camera apparatus comprising current supply means for supplying a current to the television lens apparatus, and current capacity information output means for outputting information of a capacity of current suppliable from the current supply means; and the television lens apparatus comprising current capacity information monitoring means for monitoring an information of a capacity of current from the television camera apparatus, a detachable auxiliary power source unit configured to supply a current, second current capacity information output means for outputting information of a capacity of current suppliable from the auxiliary power source unit, second current capacity information monitoring means for monitoring the information of the capacity of current from the auxiliary power source unit, and function restriction means restricting predetermined set functions such that a current value which is obtained by subtracting a current consumption value of the television lens apparatus from a sum total capacity of current, which is suppliable from the television camera apparatus and the auxiliary power source unit and is monitored by the current capacity information monitoring means and the second current capacity information monitoring means, becomes not less than a predetermined current value.