- 12 - 
Same as Fig. 8 but for the field angle 139. upper part 
of Fig. 9 at tangential azimuth, lower part at radial 
azimuth. 
Same as Fig. 9 but for 20° field angle. 
Same as Fig. 9 but for 359 field angle. 
3 
4 
MTF-values for 20 c/mm of the two aerial mapping cameras 
as a function of field angle. f/5.6, plane of best MTF 
in axis, wavelength A = 546 nm, Upper part of Fig. 12 
at tangential azimuth, lower part at radial azimuth,