The formula to calculate the Minimum Focus Distance (MFD) is:
\[ \text{MFD} = \text{FL} \times 4 + \text{DN} \]
Where:
Minimum focus distance refers to the shortest distance at which a lens can focus on a subject. This distance is determined by the lens's focal length and the distance between the nodal points of the lens. Understanding the minimum focus distance is essential for photographers and videographers to ensure they can capture sharp and clear images at close distances.
Let's assume the following values:
Using the formula to calculate the Minimum Focus Distance:
\[ \text{MFD} = 50 \times 4 + 10 = 200 + 10 = 210 \text{ mm} \]
The Minimum Focus Distance is 210 mm.