1. 期待在黄梅天的太阳出来的瞬间，会有什么好光色，眼前突然出现了一道彩虹，用小光圈先拍
[Panasonic DMC-GH4, T=0.033 sec (1/30), f/18.0, ISO=200, F=14 mm]
[Panasonic DMC-GH4, T=0.033 sec (1/30), f/18.0, ISO=200, F=14 mm]
2. 避开那钓鱼竿，再用大光圈拍一张全景，注意到左右光色完全不同
[Panasonic DMC-GH4, T=1/2500 sec, f/3.5, ISO=200, F=14 mm]
[Panasonic DMC-GH4, T=1/2500 sec, f/3.5, ISO=200, F=14 mm]
3. 那就拍张右边的景色，
[Panasonic DMC-GH4, T=0.001 sec (1/2000), f/5.1, ISO=200, F=55 mm]
[Panasonic DMC-GH4, T=0.001 sec (1/2000), f/5.1, ISO=200, F=55 mm]
4. 再拍下左边的景色。
[Panasonic DMC-GH4, T=0.001 sec (1/1600), f/5.4, ISO=200, F=69 mm]
[Panasonic DMC-GH4, T=0.001 sec (1/1600), f/5.4, ISO=200, F=69 mm]
5. 彩虹瞬间万变，感觉应该用小光圈加强景深效果。试了一下。
[Panasonic DMC-GH4, T=0.033 sec (1/30), f/20.0, ISO=200, F=37 mm]
[Panasonic DMC-GH4, T=0.033 sec (1/30), f/20.0, ISO=200, F=37 mm]
