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Samsung GX-1L Using the Built-inFlash

ER-GX1LZBAA, ER-GX1LZBAB, ER-GX1LZBBA/E1, ER-GX1LZBBA/FR, ER-GX1LZBBA/GB, ER-GX1LZBBA/NL, ER-GX1LZBBA/US

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Using the Built-in Flash

Calculating Aperture Value from Shooting Distance

The following equation calculates the aperture value for shooting distances.

Aperture Value Used F = Guide number ÷ Shooting distance

When sensitivity is [ISO 200] and shooting distance is 5.2 m, aperture value is: F = 15.6 ÷ 5.2 = 3

If the resulting number (3, in the above example) is not available as a lens aperture, the smaller number that is closest (2.8, in the above example) is generally used.

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