Disclosed is an image capturing device for use in photo surveys, wherein said image capturing device comprises: a camera unit for capturing images; a processing unit for controlling said camera unit; a first shutter release button for activating said camera unit to capture an image of a motive; and a second shutter release button for activating said camera unit to capture an image of a motive. The processing unit, when either said first shutter release button or said second shutter release button is activated, is configured to control said camera unit to capture an image of a motive, and generate an opinion variable associated with said captured image, wherein said opinion variable is for indicating the opinion of a user towards said motive, and wherein said opinion variable is generated dependent on the used shutter release button.