An imaging apparatus connected to an external client device via a network, the imaging apparatus comprising: an imaging optical system; an imaging unit configured to image an image of a subject formed by the imaging optical system; an infrared cut filter configured to cut infrared light; an insertion/retraction unit configured to control insertion and retraction of the infrared cut filter to and from an optical path of the imaging optical system; a transmission unit configured to transmit insertion/retraction specifying information to the external client device via the network, wherein the specifying information relates to automatic adjustment information specifying parameters for automatic insertion/retraction control which the imaging apparatus can handle; a reception unit configured to receive, from the external client device via the network, automatic adjustment information relating to parameters for automatic insertion/retraction control of the infrared cut filter, along with an automatic insertion/retraction control command for instructing the imaging apparatus to automatically control insertion/retraction of the infrared cut filter by the insertion/retraction unit; and a control unit configured to automatically control the insertion/retraction unit, based on the automatic insertion/retraction command and the automatic adjustment information received by the reception unit; characterized in that the insertion/retraction specifying information transmitted by the transmission unit indicates whether or not automatic adjustment information to be used by the control unit can be specified for each of a case where the infrared cut filter is inserted into the optical path and a case where the infrared cut filter is retracted from the optical path. an imaging optical system; an imaging unit configured to image an image of a subject formed by the imaging optical system; an infrared cut filter configured to cut infrared light; an insertion/retraction unit configured to control insertion and retraction of the infrared cut filter to and from an optical path of the imaging optical system; a transmission unit configured to transmit insertion/retraction specifying information to the external client device via the network, wherein the specifying information relates to automatic adjustment information specifying parameters for automatic insertion/retraction control which the imaging apparatus can handle; a reception unit configured to receive, from the external client device via the network, automatic adjustment information relating to parameters for automatic insertion/retraction control of the infrared cut filter, along with an automatic insertion/retraction control command for instructing the imaging apparatus to automatically control insertion/retraction of the infrared cut filter by the insertion/retraction unit; and a control unit configured to automatically control the insertion/retraction unit, based on the automatic insertion/retraction command and the automatic adjustment information received by the reception unit; characterized in that the insertion/retraction specifying information transmitted by the transmission unit indicates whether or not automatic adjustment information to be used by the control unit can be specified for each of a case where the infrared cut filter is inserted into the optical path and a case where the infrared cut filter is retracted from the optical path. <EOS>