Which setting determines how long the sensor is exposed to light?

Which setting determines how long the sensor is exposed to light?

• A. Shutter Speed
• B. ISO
• C. White Balance
• D. Cropping

Answer: (A)

Exposure time is controlled by how long the shutter stays open. Shutter speed determines the duration the sensor is exposed to light during a shot. A fast shutter speed keeps the exposure brief, resulting in less light and often a darker image with less motion blur. A slow shutter speed lengthens the exposure, allowing more light in and making the image brighter, but increasing the chance of motion blur from subject movement or camera shake. The other settings don’t set exposure duration: ISO changes sensor sensitivity to light, White Balance adjusts color temperature, and Cropping changes framing rather than exposure time. So shutter speed is the setting that directly controls how long the sensor is exposed to light.

Exposure time is controlled by how long the shutter stays open. Shutter speed determines the duration the sensor is exposed to light during a shot. A fast shutter speed keeps the exposure brief, resulting in less light and often a darker image with less motion blur. A slow shutter speed lengthens the exposure, allowing more light in and making the image brighter, but increasing the chance of motion blur from subject movement or camera shake. The other settings don’t set exposure duration: ISO changes sensor sensitivity to light, White Balance adjusts color temperature, and Cropping changes framing rather than exposure time. So shutter speed is the setting that directly controls how long the sensor is exposed to light.