Zoom lens barrel and image pickup apparatus having the same

An image pickup apparatus comprising:

• a body;
• and
• a lens barrel coupled to the body,
• wherein the lens barrel comprises:
• an image shake correction mechanism having an image shake correction lens that constitutes a part of the photographing optical system and having a lens holding member that is configured to hold the image shake correction lens and movable in a direction perpendicular to the optical axis;
• a first restriction unit configured to restrict a first maximum amount of movement of the lens holding member in the direction perpendicular to an optical axis;
• and
• a second restriction unit configured to restrict a second maximum amount of movement of the lens holding member in the direction perpendicular to the optical axis,
• wherein the lens holding member is movable between a first zoom position and a second zoom position along the direction of the optical axis,
• wherein in a case where the lens holding member is at the first zoom position, the first restriction unit restricts the first maximum amount of movement of the lens holding member in the direction perpendicular to the optical axis,
• wherein in a case where the lens holding member is at the second zoom position, the second restriction unit restricts the second maximum amount of movement of the lens holding member in the direction perpendicular to the optical axis, and
• wherein the second maximum amount of movement of the lens holding member is smaller than the first maximum amount of movement of the lens holding member.