An image blur compensation apparatus includes first and second driving
units (17a, 17b, 16a, 16b) having functionally equivalent members each
other. A resultant force which acts on a holding unit (12) when in-phase
driving signals of the same amount are applied to the first and second
driving units differs in magnitude from a resultant force which acts on
the holding unit when reverse-phase driving signals of the same amount
are applied to the first and second driving units. The first and second
driving units are arranged such that these resultant forces become
perpendicular to each other.