The formula to calculate the field of view is:
\[ FOV = \frac{FN}{M} \]
Where:
The field of view is the distance of the observable area seen through a microscope or telescope. It represents how much of the sample or sky you can see at one time.
Example 1:
Step 1: Divide the field number by the objective magnification:
\[ FOV = \frac{20}{10} = 2 \]
Example 2:
Step 1: Divide the field number by the objective magnification:
\[ FOV = \frac{25}{5} = 5 \]