Camera and illumination system

An illumination system comprising:

• a camera,
• wherein the illumination system is configured to perform illumination presentation by using an image data transmitted from the camera,
• wherein the camera includes:
• a data acquisition unit configured to acquire, as photographing information, at least one of time information, information on a position of the sun, information on an angle between a sunlight and a ground, and projection information of an external projection device;
• a photographing condition calculation unit configured to calculate a photographing condition based on the photographing information;
• a photographing area control unit configured to control a photographing area based on the photographing condition;
• a photographing unit configured to generate the image data by photographing the photographing area;
• and
• a communication unit configured to transmit the image data to the external projection device.