To calculate the exposure time:
\[ ET = \frac{LN}{ISO \cdot AP^2} \times 100 \]
Where:
Exposure time, also known as shutter speed, is a photography term that refers to the length of time a camera's shutter is open when taking a photograph. The amount of light that reaches the camera sensor is directly impacted by the exposure time. Short exposure times (like 1/2000th of a second) freeze action, while long exposure times (like 1 second or longer) capture the blur of motion.
Let's assume the following values:
Use the formula:
\[ ET = \frac{500}{400 \cdot 2.8^2} \times 100 \approx \frac{500}{400 \cdot 7.84} \times 100 \approx 16.00 \text{ seconds} \]
The exposure time is approximately 16.00 seconds.
Let's assume the following values:
Use the formula:
\[ ET = \frac{1000}{800 \cdot 4^2} \times 100 \approx \frac{1000}{800 \cdot 16} \times 100 \approx 7.81 \text{ seconds} \]
The exposure time is approximately 7.81 seconds.
