What is the effect of increasing shutter speed on bitrate?

Increasing shutter speed affects the bitrate primarily because it changes how much light enters the camera sensor during a given frame capture period. When the shutter speed is increased, the sensor is exposed to light for a shorter duration. This can lead to several outcomes that influence the bitrate.

When scanning motion rapidly with a higher shutter speed, the scene can become much crispier with less motion blur, potentially resulting in more detailed frames. However, because the sensor captures less light during shorter exposures, the camera may compensate by increasing the sensor's gain, which often results in a higher level of noise. This noise can require more data to represent effectively, thus resulting in a higher bitrate.

Additionally, higher detail levels in each frame can lead to increased file sizes and overall bitrate since more data is required to accurately represent the information captured. While there are other factors at play, such as compression techniques and the complexity of the scene being shot, it is typical that increasing the shutter speed will lead to an overall increase in bitrate as the camera works harder to capture sharp, usable images.

In summary, increasing shutter speed often results in a higher bitrate to effectively convey the additional detail and minimize potential noise problems that arise from the shorter exposure times.