GRASS VALLEY LDX 864K, Руководство пользователя

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LDX 86 High Frame Rate/HD/3G/4K Camera Platform User’s Guide (v2.0) 65
Chapter 4 - Video setup
4.5.2 Knee (in Compatibility mode)
Knee can be set up as an automatic or variable function. It can also be switched off, which is
the default setting.
Press the KNEE button. The
KNEE SEL
item is shown. Use this item to select Auto, Var or Off.
In the camera menu, navigate to the
CREATIVE CONTROL > LEVELS > KNEE > KNEE
item and
select Auto, Var or Off.
Auto Knee
In Auto Knee, the Knee Point is fixed while slope automatically adjusted achieve the best
possible Knee compression.
Variable Knee
The following parameters in the Knee menu can be used to set up variable Knee in
Compatibility mode:
• Kn Point/Point M (0 to 99): this is the video input level from which Knee starts
compressing.
• Kn Slope/Slope M (0 to 99): determines how much compression is applied above the Knee
point.
• Knee Limit (0 to 99): the maximum allowed video input level.
4.6 Optical filters
Both a Neutral Density filter (ND) and a Special Effects filter (FX)
1)
can be placed in the path of
the optical signal to modify the incoming light. These filters can be used, for example, to
control depth of field or exposure levels.
Press the FILTERS button and select the filter type you want to change:
ND
or
FX
. Use the
navigation buttons to step through the ND and FX filters.
On the camera, press the Filter button on the left side panel of the camera. The Filters menu is
shown in the viewfinder. Navigate to the filter type (ND or FX, when available) and select the
filter from the list.
Four Neutral Density (ND) filter positions are available:
100% 200% 300% 400% 500% 600% 700% 800% 0%
0.0
100%
150%
50%
S lope (+)
Input
Output
S lope (-)
Point
Knee Curve
Linear Curve
OCP
CAM
OCP
CAM