Número de guía del ﬂash incorporado, 104

Cómo utilizar el ﬂash incorporado

Distancia y apertura cuando se utiliza el ﬂash incor- porado

■Es necesario establecer un criterio entre el número de guía, la apertura y la distancia cuando se dispara con el ﬂash. Calcule y ajuste las condiciones de disparo si el ﬂash no es suﬁciente.

●Número de guía del ﬂash incorporado

Sensibilidad	Número de guía del ﬂash incorporado
ISO 100	13
ISO 200	18.4
ISO 400	26
ISO 800	36.7
ISO 1600	52

Cómo calcular el valor de la apertura a partir de la distancia de disparo

La siguiente ecuación le permite calcular el valor de la apertura para las distancias de disparo.

Valor de apertura utilizado F = Número de guía ÷ distancia de disparo

Ejemplo)

Cuando la sensibilidad es [ISO 200] y la distancia de disparo es 6.1 m, el valor de la apertura es:

F = 18,4 ÷ 6,1 = 3

Si el resultado de la ecuación (3, en el ejemplo anterior) no está disponible como apertura del objetivo, suele utilizarse el número más pequeño (2,8; en el ejemplo anterior) que más se le aproxime.

Cómo calcular la distancia de disparo a partir del valor de apertura

■Las siguientes ecuaciones le permiten calcular la distancia del ﬂash para los valores de apertura.

Distancia del ﬂash máxima L1 = Número de guía ÷ Apertura seleccionada Distancia del ﬂash mínima L2 = Distancia del ﬂash máxima L1 ÷ 5*

*El valor 5 usado en la fórmula que hay a continuación es un valor ﬁjo que se aplica solamente cuando utiliza solamente el ﬂash incorporado.

Ejemplo)

Cuando la sensibilidad es [ISO 200] y el valor de apertura es F4

L1 = 18,4 ÷ 4 = aprox. 4,6 (m)

L2 = 4,6 ÷ 5 = aprox. 0,9 (m)

Por lo tanto, el ﬂash se puede utilizar en una gama de unos 0,9 m a 4,6 m. El ﬂash no se puede utilizar cuando la distancia es menos de 0,8 m. Cuando el ﬂash se utiliza en una distancia de menos de 0,8 m, causa el viñeteado en las esquinas de la fotografía, la luz se distribuye de modo irregular y la fotografía puede estar sobreexpuesta.

104 ER-GX20ZBBB/SP, ER-GX20ZBBA/E1, ER-GX20ZBBB/E1, ER-GX20ZBBC/E1, ER-GX20ZBBC/ES specifications

The Samsung ER-GX20Z series, which includes models like ER-GX20ZBBA/NL, ER-GX20ZBBC/E1, ER-GX20ZBBC/DE, ER-GX20ZBBA/FR, and ER-GX20ZBBB/E1, represents a significant advancement in the personal grooming market. Designed for discerning users who value precision and efficiency, these grooming devices are equipped with a multitude of features that enhance usability and performance.

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Cómo utilizar el ﬂash incorporado

●Número de guía del ﬂash incorporado

Sensibilidad

Número de guía del ﬂash incorporado

104

ER-GX20ZBBB/SP, ER-GX20ZBBA/E1, ER-GX20ZBBB/E1, ER-GX20ZBBC/E1, ER-GX20ZBBC/ES specifications