170502-N-PO203-057 : 無料・フリー素材/写真
170502-N-PO203-057 / Office of Naval Research
| ライセンス | クリエイティブ・コモンズ 表示 2.1 |
|---|---|
| 説明 | Rear Adm. David Hahn, chief of naval research, addresses the importance of maintaining a competitive advantage in science and technology during the Department of the Navy Office of the General Counsel 2017 annual training symposium held at the Gaylord National Resort and Conference Center. (U.S. Navy photo by John F. Williams/Released) |
| 撮影日 | 2017-05-02 08:33:57 |
| 撮影者 | Office of Naval Research , Arlington, United States |
| タグ | |
| 撮影地 | Oxon Hill, Maryland, United States 地図 |
| カメラ | NIKON D4S , NIKON CORPORATION |
| 露出 | 0.006 sec (1/160) |
| 開放F値 | f/3.5 |
| 焦点距離 | 170 mm |