The Hungarian DPA issued a recommendation on the privacy related implications of the use of drones with cameras. The recommendation notes that the use of drones by the state as well as the use for commercial purposes is covered by the Information Act, whereas personal use is outside the scope of data protection legislation.
The recommendation addresses various issues, such as legal basis, necessity, proportionality, notice to data subjects, data retention and security in the use of drones. Finally, it makes recommendations for the future legislation in this area.
The English version of the recommendation is available in English under the following link: http://naih.hu/files/opinion_data_processing_by_drones_2015_02_04.pdf