Mode Dial Functions

Using the mode dial located on the rear side of the AF200FG, you can set the following flash modes.

Auto flash mode (P-TTL Auto/ TTL Auto)

When the mode dial is set to (AUTO), (–0.5), or (–1), the operating mode of the flash unit is automatically switched to P-TTL Auto or TTL Auto by communicating with the camera you use.

P-TTL Auto flash

A pre-flash is discharged before the main flash so that the metering sensor in the camera can measure the condition of the subject and adjust the output of the main flash properly. This mode gives more accurate results than the conventional TTL mode.

TTL Auto flash

The metering sensor in the camera measures the amount of light coming through the lens and adjusts the flash output properly.

Manual flash mode (full output)

When the mode dial is set to (FULL), the flash unit always discharges at its full output regardless of the ambient light condition.

Determine the Guide No. of the flash unit based on the ISO sensitivity setting of the camera, then calculate the aperture value according to the flash range.

This mode is available on all the cameras for which you can set the desired aperture.

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