aqueduc de Frejus : traces d'opes (cavités) utilisées par les romains pour tailler la roche en y enfonçant des planches et les faisant gonfler en les mouillant

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Photo details

  • Uploaded on January 31, 2013
  • Attribution-Noncommercial-No Derivative Works
    by M. Royon
    • Camera: NIKON E990
    • Taken on 2004/06/29 10:00:32
    • Exposure: 0.010s (1/97)
    • Focal Length: 8.20mm
    • F/Stop: f/3.500
    • ISO Speed: ISO100
    • Exposure Bias: 0.00 EV
    • No flash

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