Protective housing (1) for a camera comprises an outer housing (3, 5, 9, 11), an inner housing (15, 17, 19, 21, 23, 25), an outer annular chamber (33) between the outer and inner housing containing a heat-insulating medium, a housing opening (5.1, 19.1) containing a heat-insulating, transparent disk unit (9, 23), and a heat-insulating cable bushing (7.1). The inner housing has an outer wall and an inner wall forming an inner annular chamber (35) containing a heat-accumulator material. Preferred Features: The insulating material is a mineral wool. The heat-accumulator material is a heating paraffin. The housing opening in the outer housing is sealed with a disk made of borosilcate glass.
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