Focus adjustment operation detecting device, focus adjustment operation detecting method and focus adjustment operation detection program, and imaging apparatus body and imaging device

摘要

A focus adjustment operation detecting device, a focus adjustment operation detecting method and a focus adjustment operation detection program, and an imaging apparatus body and an imaging apparatus are provided which can accurately detect the focusing operation of the imaging lens.The optical image passing through the imaging lens is received, and the phase difference of the received optical image is detected for each divided area divided into a plurality of areas.The presence or absence of the focusing operation of the imaging lens is detected on the basis of the amount of change in the phase difference for each divided area.