Broncolor RFS 2.2 Mode D'emploi page 13

The delay of the flash trigger signal ( HSMA ) depends on the camera, and so
is different from model to model. The transmitters are factory set to work
correctly with most models of a given brand, however, if you should notice a
black bar across the exposed image you should utilize the HSMA function to
adjust the timing until the black bar is no longer visible in the exposed image.
Longer press on key " HS " for HSMA ( HS Manual Adjust): turn the scrolling
wheel up or down. In this way HSMA mode can be set individually. Confirm the
selection by a short press on key " HS ".
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