Tetracam FOV is a simple tool to help you determine the altitude
to fly at (AGL) to capture the image area, overlap and ground
resolution you need.
camera type, orientation and lens focal length on the settings
dialog. You can also set the maximum value for the altitude
slider, the units you want to see results in, feet or meters, the
capture interval and the aircraft groundspeed. Setting those last
two allows the image overlap calculation.
Adjust the altitude
slider until the area in view, ground resolution or overlap match
The display shows the
lens acceptance angles, the x and y dimensions of the area in
view, the ground resolution, percentage of overlap and actual area
in view, in acres or hectares.