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Lighting & Flash

7 terms


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Lighting & Flash

Feathering

Aiming a light so the subject is lit by the softer edge of its beam rather than its centre.

Lighting & Flash

Fill Light

A secondary, weaker light or reflector used to raise the shadows the key light casts, controlling contrast.

Ratio = key / fill f-stops (EV)
Lighting & Flash

Flag

An opaque black panel placed to block light from reaching a specific area.

cm
Lighting & Flash

Flash Duration

How long a flash's burst of light actually lasts, which sets its ability to freeze motion independently of shutter speed.

t.1 ≈ 3 × t.5 seconds
Lighting & Flash

Flash Exposure Compensation

An offset applied to TTL flash output, in stops, independent of the ambient exposure compensation.

stops (EV)
Lighting & Flash

Flash Exposure Lock

A control that fires the metering preflash in advance and holds the resulting power setting for subsequent frames.

Lighting & Flash

Flash Sync Speed

The fastest shutter speed at which a focal-plane shutter is fully open, and therefore the fastest speed at which flash can light the whole…

seconds