W. Visser:
Pine-trees Central Spain.
W. Visser:
Infra red image
W. Visser:
Adjustment 5 Infrared
W. Visser:
Creepy Arms (Infra red image)
W. Visser:
sheeps (infrared image)
W. Visser:
Trees (infra-red image)
W. Visser:
Landscape