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Articles on filmmaking technique, production planning, and industry knowledge.
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Tag: DoF Calculator
Cinematography13 min read
What Circle of Confusion Value Should You Actually Use? A Sensor-by-Sensor Guide
Most DoF calculators pick a default circle of confusion value and never show it to you. Some default to 0.029mm for every camera regardless of sensor size. Others use 0.025mm for 'cinema' modes that span three different sensor formats. Here is how to find out what your app is actually using and whether it is correct.
Circle of ConfusionDepth of FieldCamera
Cinematography11 min read
DoF Calculator vs. Lens Markings: Which to Trust on Set?
Lens barrel DoF markings were engraved for 35mm film standards that predate digital sensors. On most modern cinema and mirrorless cameras, those markings are optimistic by 30 to 50 percent. Here is how to know when to trust the glass and when to trust the calculator.
Depth of FieldFocusLens