Lens barrel

A lens barrel comprising:

• a barrel;
• an imaging optical system leading a subject image into the barrel;
• and
• an image blur correcting unit moving a shift lens forming the imaging optical system in a plane perpendicular to an optical axis of the imaging optical system, wherein
• the barrel includes a rear barrel and a front barrel appearing from and disappearing into the rear barrel,
• the image blur correcting unit includes a base supporting the shift lens in a plane perpendicular to the optical axis of the imaging optical system, along a first virtual axis extending and a second virtual axis that extends in a direction perpendicular to the first virtual axis in a plane perpendicular to an optical axis of the imaging optical system, and
• the lens barrel includes a support mechanism supporting the base to be movable relative to the rear barrel along a plane perpendicular to the optical axis;
• and
• a fixing device fixing the base to the rear barrel.