About the OM System OM-5
The OM System OM-5 is OM System's weather-sealed Micro Four Thirds mirrorless. The OM-5 uses a 2x crop factor — a 25mm lens gives the same field of view as 50mm full-frame. The smaller sensor produces inherently deeper DOF, which is excellent for macro and landscape photography.
Sensor: Micro Four Thirds • Resolution: 20MP • Circle of Confusion: 0.015mm
DOF Settings — OM System OM-5
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Depth of Field on the OM System OM-5
The OM System OM-5's Micro Four Thirds sensor with a circle of confusion of 0.015mm means its DOF characteristics differ from other camera systems. The OM-5 uses a 2x crop factor — a 25mm lens gives the same field of view as 50mm full-frame. The smaller sensor produces inherently deeper DOF, which is excellent for macro and landscape photography.
Key DOF Concepts for OM System OM-5 Shooters
- Hyperfocal distance: Focus at this distance and everything from half that distance to infinity will be sharp — useful for landscapes and street photography.
- Wider aperture (lower f-number) = shallower DOF — portrait shooters often use f/1.4–f/2.8 to isolate subjects.
- Longer focal length = shallower DOF at the same subject distance and aperture.
- Closer subject = shallower DOF — at macro distances, DOF can be a fraction of a millimeter.