Presentation of Elevation Information
The photo scale of a vertical aerial photograph (horizontal
image plane) is defined as f/H. For example, aerial photographs
for national mapping taken by a camera with a focal
length of 152 mm at a flying height of 6000 m have a photo
scale of approximately 1:40,000. The high-resolution satellite
imagery of IKONOS has a photo scale of 1:68,000 (flH = 10m/
680km).