Crop Factor Calculator

Calculate Crop Factor (CF)



Formula

The formula to calculate the Crop Factor (CF) is:

\[ CF = \frac{D35}{DC} \]

Where:

What is Crop Factor?

The crop factor is a measure used to describe the ratio of the dimensions of a camera's imaging sensor compared to a 35mm film frame. It is used to determine the equivalent focal length of a lens when used with different sensor sizes. The crop factor helps photographers understand how a lens will behave on different camera bodies, particularly in terms of field of view.

Example Calculation

Let's assume the following values:

Using the formula to calculate the Crop Factor:

\[ CF = \frac{43.3}{28} \approx 1.55 \]

The Crop Factor is approximately 1.55.