A control apparatus comprising: a communication unit configured to acquire one of a first image captured by an image capturing unit and a partial image corresponding to a partial area of the first image; setting means configured to generate a command and transmit the command via the communication unit via a network to an image capturing apparatus including the image capturing unit to set a preset parameter set including a position setting parameter specifying a position of the partial image in the first image and/or a preset parameter set including an image quality setting parameter specifying image quality of the first image; and display control means configured to control displaying so as to display, on a display unit , a selection screen for setting one of a plurality of preset parameter sets to the image capturing apparatus , wherein the plurality of preset parameter sets include first preset parameter sets that include a position setting parameter and do not include an image quality setting parameter, and second preset parameter sets that include an image quality setting parameter and do not include a position setting parameter, wherein the display control means displays the selection screen on the display unit such that, in a case where the partial image is being acquired by the communication unit , the selection screen includes the first preset parameter sets as a selectable set but does not include the second preset parameter sets as a selectable set, and in a case where the first image is being acquired by the communication unit , the selection screen includes the second preset parameter sets as a selectable parameter set but does not include the first preset parameter sets as a selectable parameter set. a communication unit configured to acquire one of a first image captured by an image capturing unit and a partial image corresponding to a partial area of the first image; setting means configured to generate a command and transmit the command via the communication unit via a network to an image capturing apparatus including the image capturing unit to set a preset parameter set including a position setting parameter specifying a position of the partial image in the first image and/or a preset parameter set including an image quality setting parameter specifying image quality of the first image; and display control means configured to control displaying so as to display, on a display unit , a selection screen for setting one of a plurality of preset parameter sets to the image capturing apparatus , wherein the plurality of preset parameter sets include first preset parameter sets that include a position setting parameter and do not include an image quality setting parameter, and second preset parameter sets that include an image quality setting parameter and do not include a position setting parameter, wherein the display control means displays the selection screen on the display unit such that, in a case where the partial image is being acquired by the communication unit , the selection screen includes the first preset parameter sets as a selectable set but does not include the second preset parameter sets as a selectable set, and in a case where the first image is being acquired by the communication unit , the selection screen includes the second preset parameter sets as a selectable parameter set but does not include the first preset parameter sets as a selectable parameter set. <EOS>