Sony SLT-A57M α Handbook - Page 126
Flash control, MENU button, Select the desired, setting
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Adjusting the brightness of the image • The higher flash effect may not be visible due to the limited amount of flash light, if the subject is outside the maximum range of the flash. If the subject is very close, the lower flash effect may not be visible. Exposure compensation and flash compensation Exposure compensation changes the shutter speed, aperture, and ISO sensitivity (when [AUTO] is selected) to perform the compensation. Flash compensation only changes the amount of flash light. Flash control MENU button t setting 2 t [Flash control] t Select the desired 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. 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 (sold separately) cannot be determined (wireless flash shooting using an external flash (sold separately), 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. 126