A lens control apparatus for controlling the position of a focusing lens
includes a rotary operation member, a detector, having a rotary encoder
coupled with the rotary operation member, which detects the amount of
rotation per unit time of the rotary operation member by counting the
number of pulses per unit time outputted from the rotary encoder, and a
conversion circuit for converting a detection output of the detector into
a signal indicative of the position of the focusing lens. Further, the
lens control apparatus is provided with a control characteristic changing
circuit for changing a control characteristic of the lens.
