In fall 2013, BSF Swissphoto was commissioned to carry out an aerial  survey of a 165 km long and 60 m wide railway section between Munich and  Lindau by the National German Railway Company (“Deutsche Bahn”). The  objective was the acquisition of laser data at a measurement rate of 20  points/m2. The survey flights were carried out in 2013 employing an  Optech ALTM Gemini installed in a helicopter.