Panasonic Step/Synchro, Gain [Auto, 0dB to 18dB], AGC Max Gain [6dB, 12dB, 18dB], Frame Mix [Auto, Off, 6dB, 12dB, 18dB, 24dB], Auto F.Mix Max Gain [0dB, 6dB, 12dB, 18dB, 24dB], ND Filter [Through, 1/4, 1/16, 1/64]

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Camera menu
Setting the camera menu items (continued)
Step/Synchro
This is used to adjust the shutter speed in the mode which
was selected as the “Shutter Mode” setting.
When a higher shutter speed is selected, fast-moving
subjects do not become blurred easily but the images will
be darker.
The shutter speeds that can be set are listed below.
[When 59.94 Hz has been set as the frequency]
When “Step” is selected as
the “Shutter Mode”
When “Synchro” is selected
as the “Shutter Mode”
1/100, 1/250, 1/500, 1/1000,
1/2000, 1/4000, 1/10000
60.17 Hz to max. 644.25 Hz
(255 steps)
[When 50 Hz has been set as the frequency]
When “Step” is selected as
the “Shutter Mode”
When “Synchro” is selected
as the “Shutter Mode”
1/120, 1/250, 1/500, 1/1000,
1/2000, 1/4000, 1/10000
50.19 Hz to max. 537.12 Hz
(255 steps)
Gain [Auto, 0dB to 18dB]
The image gain is adjusted here.
In locations which are too dark, adjust the gain upward;
conversely, in locations which are too bright, adjust it
downward.
When “Auto” is set, the light quantity is adjusted
automatically.
The noise increases when the gain is increased.
The Gain setting is fixed at Auto when “Frame Mix” has
been set to “Auto”.
AGC Max Gain [6dB, 12dB, 18dB]
When “Auto” is selected as the “Gain” setting, the
maximum gain-up amount can be set.
Frame Mix
[Auto, Off, 6dB, 12dB, 18dB, 24dB]
Select for frame addition (gain-up using sensor storage)
amount.
When frame addition is performed, it will appear as if the
images are missing some frames.
This menu item cannot be set when 1080i is used as the
format.
The Gain setting is fixed at Auto when “Frame Mix” has
been set to “Auto”.
Auto F.Mix Max Gain
[0dB, 6dB, 12dB, 18dB, 24dB]
When “Auto” for the “Frame Mix” is selected, the maximum
frame addition amount can be set.
If frame addition is performed at the Auto setting, it will
appear as if the images are missing some frames.
This menu item cannot be set when 1080i is used as the
format.
 Under lighting generated by fluorescent lights,
mercury lamps or other discharge lamps, the
brightness may change synchronously, the colors
may vary, and horizontal stripes may run vertically.
In cases like this, it is recommended that the
electronic shutter speed be set to 1/100 in areas
where the power line frequency is 50 Hz and that
the electronic shutter be set to OFF in areas where
the power line frequency is 60 Hz.
Note
ND Filter [Through, 1/4, 1/16, 1/64]
This is for selecting the transmissivity of the ND filter
(light-dimming filter) which is incorporated in the lens.
Return
Use this to return to the previous menu.