To calculate the Equivalent Aperture (\(EA\)):
\[ EA = FL \times CF \]
Where:
Equivalent Aperture is a term used in photography to describe the aperture value of a lens when used on a camera with a different sensor size. It is calculated by multiplying the lens's focal length by the camera's crop factor. This measurement helps photographers understand how a lens will perform on different cameras, particularly in terms of depth of field and light gathering ability.
Let's assume the following values:
Using the formula:
\[ EA = 50 \times 1.5 = 75 \text{ mm} \]
The Equivalent Aperture is 75 mm.
Let's assume the following values:
Using the formula:
\[ EA = 100 \times 2.0 = 200 \text{ mm} \]
The Equivalent Aperture is 200 mm.
