Imaging unit

An imaging unit configured to generate image data from an optical image of a subject formed by an interchangeable lens unit, the imaging unit comprising:

• a mount unit capable of having the interchangeable lens unit mounted thereto;
• an imaging element unit disposed so that a gap is present with respect to the mount unit, the imaging element unit configured to generate image data representing the subject by photoelectric conversion;
• a plurality of elastic members disposed in a compressed state between the mount unit and the imaging element unit;
• a plurality of adjustment screws configured to adjust the distance between the mount unit and the imaging element unit, the adjustment screws being disposed coaxially with respect to each of the elastic members and mounted on the mount unit and/or the imaging element unit;
• and
• a filler member disposed coaxially with respect to at least one set comprising an elastic member and an adjustment screw, the filler member being compressed from either side between the mount unit and the imaging element unit when the adjustment screw is tightened.