Became well-known due to development of wide angle lenses for aerophotography.

His famous textbook, Aerophotography and Aereosurveying, was written here.

The plan is to carry out new aerophotography and produce new digital colour orthophoto maps at a scale of 1:10,000.

Aerophotography and aerosurveying.

Physical and geographical features of Soligorsk District had to be studied (geodetic network, topographical survey, material of the earlier aerophotography work).

In 1958 worked on wide angle lenses design in Geodesy, Aerophotography and Cartography Central Research Institute.

Bosatlas van Fryslân is completely dedicated to the Dutch province of Friesland, with historical and modern maps, aerophotography and background information on hundreds of topics.