Trailing Curtain Sync
When using the built-in flash with an external flash (AF540FGZ or AF360FGZ) that is set to the Trailing curtain sync function, the built-in flash will also use this mode. Confirm that both flash units are fully charged before shooting.
Using the Built-in Flash with the External Flash
When using the built-in flash with an external flash that does not have wireless flash mode function such as AF200FG, attach the Hot Shoe Adapter FG (optional) to the camera hot shoe and an Off-Camera Shoe Adapter F (optional) to the bottom of the external flash, and connect these with the Extension Cord F5P (optional) as shown in the illustration below. The Off-Camera Shoe Adapter F can be mounted using the tripod screw to your tripod.
Only the P-TTL auto flash can be used in combination with the built-in flash.
When combining with the built-in flash