Question

You want to use a film camera in an aerial photographic survey of your city. The camera has a focal length of 152mm and a lens system with a resolution of 125 lp/mm. It uses a film with a resolution of 100 lp/mm for low contrast targets and 300 lp/mm for high contrast targets. The camera is flown at an altitude of 1520 m above ground. What is the GSD?

Answer 1

"Here is the related answer:

For every digital camera, the arrangement of focal length and pixel size determines its operation profile. Mission constraints for photo flights with digital cameras are determined by the necessary ground sampling distance (GSD).

The DMC camera has 120 mm focal length and 12 micron CCD pixel size.

"