An image pickup apparatus includes an eyepiece unit configured to facilitate viewing an optical image of an object, an image pickup element configured to convert the optical image of an object into an electrical signal, an optical member disposed in front of the image pickup element and in an imaging light axis, an piezoelectric element disposed on the side of the optical member close to the eyepiece unit, where the piezoelectric element vibrates the optical member, a biasing member disposed on the side of the optical member opposite the piezoelectric element, a lowpass filter holding member configured to hold the optical member, the piezoelectric element, and the biasing member, and an image-pickup-apparatus body chassis having a flat surface portion perpendicular to the imaging light axis, where the flat surface portion has an opening therein. The lowpass filter holding member is disposed in the opening of the body chassis.