Cubesat camera resolution is best quantified by MTF, as it is a measure of image detail is transfered. One can define the whole imaging chain using MTF.
Medium resolution CubeSat Cameras are well-positioned to provide a complementary tip and cue service to larger high-resolution, more expensive counterparts.
Together with the number of satelllites, the Earth Observation payload industry is expanding rapidly. This blog looks at the trends within this sector.