Lens barrel enabling lens inclination adjustment and imaging apparatus provided with same

A lens barrel that is configured to adjust a position of an adjusted lens in the direction of an optical axis with respect to another lens, the lens barrel comprising:

• a first retaining frame configured to retain the adjustment lens;
• and
• a second retaining frame configured to adjustably retain the first retaining frame,
• wherein one of the first and the second retaining frames comprises a first adjustment surface group including a plurality of adjustment surfaces that are adjacently disposed in the direction of rotation about the optical axis of the adjustment lens and are provided with different heights, and a second adjustment surface group having a different configuration from the first adjustment surface group, having a plurality of adjustment surfaces that are adjacently disposed in the direction of rotation of the adjustment lens and are provided with different heights, and disposed at a position exhibiting a 180 degree rotational phase from the position of the first adjustment surface group, and
• wherein the retaining frame of either the first or second retaining group that is not provided with the first and the second adjustment surface groups comprises a supporting portion configured to abut with the first adjustment surface group or the second adjustment surface group.