测算你相机的安全快门速度有一个好的方法，你相机镜头焦距的倒数，就是你避免镜头抖动的快门最小值。
A good rule of thumb to minimise camera shake is to set the shutter speed at a minimum of one second divided by your focal length.
为了享受一个好的观景地点，摄影师长途步行至拉戈阿根廷一个湖泊上方400米处一个多风地点，在三角架上架好相机后攀登进入画面。
To enjoy a good vantage point, the photographer hiked to a windy spot about 400 meters above a lake, Lago Argentino, climbing into the picture after setting up his camera on a tripod.
好的，我有一个背包还有相机三脚架。
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