There is provided an imaging apparatus having (a) an eyepiece type viewfinder formed on a predetermined plane of the imaging apparatus; (b) an operation member for diopter adjustment of said viewfinder; and (c) a light shielding member for suppressing entrance of external light into said viewfinder, the light shielding member protruding from the predetermined plane around the viewfinder by a constant height. In the apparatus, the operation member is disposed not to protrude from an outer border of the predetermined plane, and a recess is formed in the light shielding member above the operation member so that the operation member is substantially accommodated in the recess inner than an opening edge of the recess.