A head separated type imaging apparatus includes a head unit and a main unit which are separated, the head unit imaging a subject and the main unit processing an imaging signal transmitted from the head unit. The head unit includes an imaging unit having a plurality of pixels and imaging the subject, and a storage unit storing correction information for pixels for which a data amount of correction information is larger than a predetermined threshold out of correction information correcting noise of the plurality of pixels and remaining correction data. The main unit includes a correction information obtaining unit obtaining the correction information for pixels for which the data amount of correction information is larger than the predetermined threshold in priority and then obtaining the remaining correction data, and a correcting unit correcting, when the correction information obtaining unit completes obtaining of the correction information for pixels for which the data amount of correction information is larger than the predetermined threshold, an image signal transmitted from the imaging unit of the head unit based on the obtained correction information.