Sterkfontein Caves : 無料・フリー素材/写真
Sterkfontein Caves / MaropengSA
| ライセンス | クリエイティブ・コモンズ 表示 2.1 |
|---|---|
| 説明 | Geologists called for the Sterkfontein Caves to be protected in the 1890s. David Draper, a respected geologist of the time, persuaded the miners to preserve the main cave because of its stalactites, stalagmites and pristine underground lake, but mining continued in the area. Signs of the lime workers’ activities can still be seen. |
| 撮影日 | 2009-07-27 15:31:48 |
| 撮影者 | MaropengSA |
| タグ | |
| 撮影地 | |
| カメラ | Canon EOS 450D , Canon |
| 露出 | f/6.3 |
| 開放F値 | f/6.3 |
| 焦点距離 | 21 mm |