I am using Pix4DMapper Discovery and have a Phantom 3 Pro. When I import the images into Pix4DMapper the Coordinate System is auto detected as Datum: World Geodetic System 1984; Coordinate System: WGS 84 (egm96).
When I go to select the output coordinate system it defaults to Datum: World Geodetic System 1984; Coordinate System: WGS 84 / UTM Zone 18N. However if I change the Units from M to ft, it changes the coordinate system to Datum: North American Datum 1983; Coordinate System: NAD 1983 StatePlance New York Long Island FIPS 3104 Feet.
I live in the US so feet is easier for me. What does the output coordinate system do, and does it matter if I change it?