A vibration correcting optical device includes: a vibration detection unit
that detects a vibration of the vibration correcting optical device and
outputs a vibration detection signal corresponding to the vibration; a
vibration state judgment unit that judges a state of the vibration of the
vibration correcting optical device to be one of at least three states,
based upon the vibration detection signal; an image vibration correcting
optical system that corrects an image vibration caused by the vibration
of the vibration correcting optical device; a drive unit that drives the
image vibration correcting optical system based upon a drive signal; a
drive signal arithmetic operation unit that calculates the drive signal
based upon the vibration detection signal and outputs the drive signal to
the drive unit; and a drive signal calculation control unit that controls
a method for calculating the drive signal adopted at the drive signal
arithmetic operation unit in conformance to the state of the vibration
ascertained through a judgment executed by the vibration state judgment
unit.