Sony DSLRA850 Operating Instructions - Page 107

Recording menu 2 Flash mode For details, see page 64. Flash control You can select the flash control mode to set the amount of flash light. 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 flash cannot be determined (wireless flash shooting, 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. Recording menu 107