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在自然光明亮的情况下,采用高速同步闪光(外置机顶闪光灯)拍摄的目的在于既要利用大光圈达成背景虚化,同时利用闪光灯为人物补光,使之呈现得更为细腻、清晰。什么是闪光灯的高速同步闪光功能?我们都知道,在自然光较为明亮的情况下,如果既想用闪光灯为人物补光,又想用大光圈虚化背景环境,那么必然要求较高的快门速度。但专业数码单反相机的闪光灯同步速度最高为1/250秒,一般中低端相机的闪光灯同步速度为1/125秒,如果想用更高的快门速度实现曝光就必须使用高速闪光同步功能。高速闪光同步可以使相机在任何高速快门档下实现闪光拍摄,而不会因快门幕帘的遮挡破坏画面。其原理为闪光灯连续发出多个闪光
In bright natural conditions, the use of high-speed sync flash (external set-top flash) shooting is both the need to use a large aperture to achieve the bokeh, while the use of flash for people fill light, make it appear more delicate and clear. What is the high-speed sync flash function of the flash? We all know that in the case of natural light is more bright, if you want to fill the light with the flash for the characters, but also want to use a large aperture blur the background environment, it will inevitably require a higher shutter speed. But the professional digital SLR camera flash sync speed of up to 1/250 seconds, the general low-end camera flash sync speed of 1/125 seconds, if you want to use a higher shutter speed to achieve exposure you must use the high-speed flash sync function. High-speed flash sync allows the camera to take flash shots at any high shutter speed without damaging the screen due to the shutter curtain blocking. The principle for the flash issued a number of continuous flash