Name: Sekonic Flashmate L-308S
Brand: Sekonic
Rating: 4 (1 reviews)

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6. Advanced Functions

1. Measuring Light Contrast

This method is used to check studio lighting or lighting unevenness.

1) Mount the Lumidisc accessory (see page 8).

2) Turn ON just the main light source.

Point the Lumidisc at the main light source

from the subject position and then

measure.

3) Next turn ON just the secondary light

source.

In this state now point the Lumidisc at the

secondary light source and measure.

4) Determine the luminance ratio (contrast

ratio) using the differrence of measuring

values of the main light source and the

secondary light source.

REFERENCE: • To determine exposure in incident light, turne ON botn main

light source and secondary light source, point the Lumisphere

at the camera lens axis and then measure.

Contrast Ratio

１ ２：１

１.５ ３：１

２ ４：１

３ ８：１

４ １６：１

５ ３２：１

EV Difference of

Measuring Value

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Sekonic Flashmate L-308S Specifications

General