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Lighting & Flash

3 terms


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Lighting & Flash

Gobo

An opaque cut-out or template placed in a light's beam to cast a shaped pattern onto a subject or background.

Lighting & Flash

Golden Hour

The period shortly after sunrise and before sunset when the sun is low, and its light is warm, soft and strongly directional.

Sun elevation ≈ 0° to 6° degrees (sun elevation)
Lighting & Flash

Guide Number

A measure of a flash's power, equal to the product of the correct aperture and the subject distance at a stated ISO.

GN = N × d m at ISO 100