Sekonic L-758D - Manual (Page 22)

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• “E.u” (Exposure under) or “E.o” (Exposure over) appears when the combination of shutter
speed and aperture is outside the display range.
When E.O (Exposure Over) is displayed,it indicates that the measured exposure is outside
the display range, changing the shutter speed to a faster setting with the Jog wheel will allow
you to find a combination of proper aperture and shutter speed.
When E.U (Exposure Under) is displayed, it indicates that the measured exposure is outside
the display range, changing the shutter speed to a slower shutter speed with the Jog wheel
will allow you to find a combination of proper aperture and shutter speed.
• If the “E.u” or “E.o” readout blinks, this indicates that the light level is beyond the measurement
range of the light meter. Adjust lighting in this case.
5. Measurement