Sony DSLR-A200W Instruction Manual - Page 80

Selecting the method for measuring the brightness of a subject (Metering mode), Fn button

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ADI flash Pre-flash TTL This method controls the lighting of the flash, factoring in the focus distance information and light metering data from the pre-flash. This method enables an accurate flash compensation with virtually no effect from the reflection off the subject. This method controls the amount of flash light depending on the data only from pre-flash light metering. This method is susceptible to the reflection off the subject. ADI: Advanced Distance Integration TTL: Through the lens • When [ADI flash] is selected, using a lens that is provided with a distance encoder feature can perform more accurate flash compensation by using more accurate distance information. Notes • When the distance between the subject and the external flash (not supplied) cannot be determined (wireless flash shooting using an external flash (not supplied), shooting with an off-camera flash using a cable, shooting with a macro twin flash, etc.), the camera automatically selects Pre-flash TTL mode. • Select [Pre-flash TTL] in the following cases, as the camera cannot perform flash compensations with ADI flash. - A wide panel is attached to the HVL-F36AM flash. - A diffuser is used for flash shooting. - A filter with an exposure factor, such as an ND filter, is used. - A close-up lens is used. • ADI flash is only available in combination with a lens that is provided with a distance encoder. To determine if the lens is equipped with a distance encoder, refer to the operating instructions supplied with the lens. Selecting the method for measuring the brightness of a subject (Metering mode) Fn button t [Metering mode] t Select the desired mode (Multi segment) This divides the whole screen into 40 segments to measure light (40-segment honeycomb pattern metering). (Center weighted) While emphasizing the central area of the screen, this mode measures the average brightness of the entire screen. (Spot) This mode measures light only in the spot metering circle in the center of the frame. 80

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80
ADI: Advanced Distance Integration
TTL: Through the lens
•
When [ADI flash] is selected, using a lens that is provided with a distance
encoder feature can perform more accurate flash compensation by using
more accurate distance information.
Notes
• When the distance between the subject and the external flash (not supplied) cannot
be determined (wireless flash shooting using an external flash (not supplied),
shooting with an off-camera flash using a cable, shooting with a macro twin flash,
etc.), the camera automatically selects Pre-flash TTL mode.
• Select [Pre-flash TTL] in the following cases, as the camera cannot perform flash
compensations with ADI flash.
– A wide panel is attached to the HVL-F36AM flash.
– A diffuser is used for flash shooting.
– A filter with an exposure factor, such as an ND filter, is used.
– A close-up lens is used.
• ADI flash is only available in combination with a lens that is provided with a
distance encoder. To determine if the lens is equipped with a distance encoder, refer
to the operating instructions supplied with the lens.
Fn button
t
[Metering mode]
t
Select the desired mode
ADI flash
This method controls the lighting of the flash, factoring in the
focus distance information and light metering data from the
pre-flash. This method enables an accurate flash
compensation with virtually no effect from the reflection off
the subject.
Pre-flash TTL
This method controls the amount of flash light depending on
the data only from pre-flash light metering. This method is
susceptible to the reflection off the subject.
Selecting the method for measuring the brightness of a
subject (Metering mode)
(Multi segment)
This divides the whole screen into 40 segments to measure
light (40-segment honeycomb pattern metering).
(Center weighted)
While emphasizing the central area of the screen, this mode
measures the average brightness of the entire screen.
(Spot)
This mode measures light only in the spot metering circle in
the center of the frame.