I don’t understand how using a flash can freeze motion better than ambient light. In the end, isn’t it all just light hitting the sensor?
I don’t understand why it would do this. I mean it’s not necessarily like the camera knows and is like “Oh they’re using flash, I’ll be nice and give them a sharper picture’. I mean obviously they don’t think like that, but all in all it’s light luminating the subject and hitting the sensor, why does something like the source of the light affect how much motion can appear in your image?
In: Technology
When a camera takes a picture it collects a specific amount of light. You can stop motion in two ways. Instead of a camera, imagine a really large window with a curtain. If you could open/close the curtain really fast, 1/1000s, it would let in enough light and stop the motion. When you have a flash, it’s a bit different. Instead of a really large window, you have a tiny window. To get enough light you need to hold the curtain open longer. However if you hold it open longer you can’t stop the motion. Instead we flash a really bright light at 1/1000s. The motion is stopped because the bright light is only on for a short period of time.
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