1. Field of the Invention
The present invention relates to an imaging device and a focus control method.
2. Description of the Related Art
An apodization filter (hereinafter, referred to as an APD filter) has been known as an optical filter for improving the quality of an image that is out of focus, that is, a so-called blurred image. When the APD filter is used, it is possible to smooth the contour of a blurred image.
JP2005-62732A discloses an imaging device in which an APD filter can be inserted into an optical path and focus control is performed by a phase-difference autofocus (AF) system in a state in which the APD filter is inserted into the optical path.
JP2013-178387A discloses a technique which is not related to an imaging device provided with an APD filter and limits the range in which a focus lens can be driven in order to reduce the time required for the completion of focusing when focus control is formed by a phase difference AF system.