Adjusting The White Shading - Panasonic AJ-HDC27V Operating Instructions Manual

Adjusting the white shading

Follow the procedure outlined below when the white
shading needs to be re-adjusted.
Adjustment method
<Notes>
O The method below can be used for the white
shading adjustments with most lenses. However,
with some very special lenses, a different
adjustment method may be necessary.
O Even when the white shading has been adjusted,
tinting may occur in the vertical direction near the
lens aperture open position. This is a phenomenon
which is inherent to lenses and optical systems and
is not indicative of malfunctioning.
1
Attach the lens to the camera.
At this stage, do not forget to connect the lens
cable.
2
Set the electronic shutter to OFF, and set the gain
to "L (0 dB)."
SHUTTER: OFF
3
If the lens is provided with an extender, disengage
the extender function.
Similarly, if the lens is provided with a ratio
converter, disengage the ratio converter function.
4
1 Perform the menu operations (pages 72 to 74),
2 Set ZEBRA1 DETECT to 70%, ZEBRA2
3 Press the MENU button and close the menu
4 Set the ZEBRA switch on the viewfinder to ON.
5
Shoot a sheet of white paper devoid of color
irregularities.
<Note>
Since flicker tends to occur under fluorescent
lights, mercury lamps and other such lights, use a
source of light such as sunlight or a halogen lamp
which does not tend to produce flicker.
6
Set the lens aperture to manual, and adjust the
lens aperture in such a way that ZEBRA fills the
whole screen.
Check that the lens aperture is between F/4 and
F/11.
GAIN: L (0 dB)
<Notes>
O Since unevenness in the lighting will make it
O Try adjusting the lighting position, etc. also when
O Always be sure to leave the electronic shutter at
27
and display the "VF DISPLAY" screen of CAM
MAIN MENU 2.
DETECT to 85% and ZEBRA2 to STOP.
(Default setting mode)
screen.
MENU button
JOG dial button
impossible for ZEBRA to fill part of the screen,
try adjusting the lighting position, etc.
the lens aperture is not between F/4 and F/11.
OFF.