Depth of Field Calculations

First: Calculate the hyperfocal distance (definition above)

(The tables are calculated for Cc = .001" (,025mm) for 35mm film, = .0006 (0.15mm) for 16mm film)

Second: Using H, calculate near and far depth-of-field limits

DN camera to near limit =-

DF camera to far limit =-

H = Hyperfocal distance S = Distance from camera to object F = Focal length of lens Depth Total = DF-DN

When the object distance is less than 10 times the lens focal length, depth of field is very small, and tables are more appropriately combined and stated in terms of image magnification, rather than focal length and subject distance. (See "Extreme Closeup.")

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