闪光实验(9):同步速度

我们知道快门通过帘幕实现会导致闪光同步问题,一旦曝光速度超过同步速度就会获得下面的图像:

我们是否能够通过调整闪光灯实现高速同步呢?这看起来也是我们 app 一个比较重要的 feature,简单的说,我们应该可以将相机调为后帘同步,这样在后帘开始移动的瞬间触发第一次快门,当后帘运行到合适的地方触发第二次快门即可,这看起来就是一个简单的算术问题,软件是否能很好的帮助我们实现呢?我们拭目以待。

顺便研究了一下闪光灯的触发信息,某些传统的闪灯因为不是瞬时达到最亮,对应 M/F sync 方式都会进行一定的延迟(几毫秒到几十),现在电子闪光灯都是瞬间点亮对应于 X sync 方式。HSS sync 实现并不是完全和多次闪一样,到底会有什么差异我们需要试验一下。很明显要控制闪灯,还需要弄到 ISO 519:1992 看看,不知道哪里有不要钱的版本。

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And Esau took his wives, and his sons, and his daughters, and all the persons of his house, and his cattle, and all his beasts, and all his substance, which he had got in the land of Canaan; and went into the country from the face of his brother Jacob

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闪光实验(9):同步速度

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