Hot Air Balloon, Mildura International Hot Air Balloon Fiesta 2004 0 comments on Australian Defence Force – VH-TRI Australian Defence Force – VH-TRI Aperture: ƒ/3.91 Camera: hp 635 Digital Camera Taken: 1 July, 2004 Copyright: Copyright, HP Corp, 2003 Focal length: 9.8mm ISO: 100