The Camera - Shutter Speed

 What Is Shutter Speed?

Shutter speed is one of the main parts of the exposure triangle, it refers to the physical mechanic where the lens is exposed to light, with an actual shutter allowing light in for a specified amount of time. With it being the time the light is allowed in, shutter speed is measured in fractions of a second, and when the time exposed is more than a second, its just measured in normal seconds. A long exposure would be up to 30 seconds, or possibly as long as you want. The longer the exposure is, the more light is taken in, and from multiple sources, for example, with a long exposure, if someone were to throw a football, the camera would capture the light received from the football at the beginning of the arc, the peak, and where it lands. In comparison, a short exposure and a quick shutter speed would capture a clearer picture of the football at at a certain moment in the peak.
Here is a photo of a record in a vinyl player with a shutter speed of 3.5 seconds.
Here is the same vinyl with a shutter speed of 1/40 of a second.
 

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