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Manual Motor-zoom Control:
The "Zoom" key permits you to change the zoom
reflector’s position that is independent of the focal length of
the lens.
By slightly tapping the "Zoom" key you can select the
zoom position in the following sequence:
Auto Zoom position → 24mm → 28mm → 35mm→ 50mm
→ 70mm → 85mm → Auto Zoom position
Slave Function
This flashgun can perform as a wireless slave by switching
Mode to "S". The flashgun will automatically switch to M
mode with power ratio 1:1. When the sensor detects a
flash from an external source, the flash will be triggered to
fire. The amount of light output can be controlled by
selecting the power ratio. The power ratio ranges from 1/1
to 1/16. If multiple flashes are used as slave unit, you must
adjust the light output from each flash in order to get the
correct exposure for your photos. When the slave mode is
on, the power saving mode does not function.