Calculate instantaneous field of view (IFOV) from detector element size and camera focal length, or from camera field of view and pixel count.
IFOV Method 1
Use detector element size and camera focal length. Enter both values in microns.
IFOV Method 2
Use the field of view and the number of pixel elements in the same direction.
For Method 2, calculate the X and Y directions separately using the field of view and pixel count for the same direction.
