Traditional Culture Encyclopedia - Photography and portraiture - Photographic light ratio problem
Photographic light ratio problem
The flash light ratio of a 600 watt 1.5m octagonal soft box on the left is 1/4.
Right 600W 80 *120m octagonal soft box flash, light ratio 1/2.
The flash light ratio of a 600-watt 90*90 soft box at the top is 1/8.
The above data should be flash output (compared with total light output)!
Light ratio: it should be 600W output of left lamp 1/2; The output of a 600 watt lamp on the right is1/8; Resulting in a light ratio of 4: 1.
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