Sekonic Speedmaster L-858D-U Light Meter - Manual (Page 203)

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7. Hardware Setting
Operation
1.
Touch the [User Calibration] Button.
The User Calibration Screen is displayed.
User Calibration Screen
[Close] Button
Calibration Value
Adjustment Button
(+)
Adjustment Button
(-)
2.
Adjust the calibration value.
Use the Adjustment Button ( ) or ( ) to adjust the calibration value in
increments of +/-0.1 EV.
3.
Touch [Close] Button.
Finish the setting, and return to the Hardware Setting Screen.
7-1-1 User Calibration
The meter is calibrated to Sekonic standards. However, if necessary, you can
change the measurement standard using the User Calibration Function. The
compensation value can be set +/- 1.0 EV in 0.1 EV step increments.
If you know the compensation value in advance, you can directly enter the value.
Also, you can adjust the meter based on a measured value obtained using another
light meter.