Grass Valley TTV 1657D - Manuel (Page 147)

Chapter 2 - Camera 147
Camera operation
THOMSON TTV 1657D
User manual
B1657D902C
Septembre 2000
• MON CHARAC: Selection of presence (ON) or not (OFF) of characters on the camera
"VIDEO OUT" connector.
• MON SELECT: Selection of video signal available on the "VIDEO OUT" connector:
- (R) Red,
- (G) Green,
- (B) Blue,
- (R-G) Red minus green,
- (B-G) Blue minus green,
- (COD) Encoded.
• NEUTRAL FILTER: Filter wheel electrical control.
NOTE: If the camera is fitted with manual density filters, this control is ineffective.
• PRESET PICTURE: Used to set the various operational settings to a standard value.
• SC PHASE: Used to adjust the phase of the encoded video subcarrier when the camera
is slaved to the GEN LOCK signal. This adjustment provides in-phase subcarriers at the
mixer input (PAL or NTSC).
• SELECT MAKER (Cameraman functions):
- 0: No marker,
- 1: Displays markers programmed in "PRGM MARKER 1",
- 2: Displays markers programmed in "PRGM MARKER 2".
• SHUTTER: Shutter on-off. The shutter is used to vary exposure time (see shutter
speed). With a PROSCAN camera, in FILM SCANNING mode, the shutter 1/50 s is
automatically actived.
• SHUTTER SPEED: Selection of exposure time so as to capture fine details of
fast-moving objects. The shutter speed must be varied in inverse proportion to
movement allowing, however, for the fact that sensitivity decreases proportionally.
The exposure time vary of:
- 1/50 s (SHUTTER: OFF) to 1/1000 s in STANDARD SCANNING mode,
- 1/25 s (SHUTTER: OFF) to 1/500 s with a PROSCAN camera in FILM SCANNING
mode.
• SKIN ACQUIS.: Starts the acquisition of the colour contained in the rectangle (see
"SKIN VIEW"). To use "SKIN", refer to paragraph 2.2.8.3 - "SKIN functions and use".
• SKIN DETAIL: Switching in or out of device used to reduce detail on skin colours. For
use of "SKIN DETAIL", refer to paragraph 2.2.8.3 - "SKIN functions and use".
• SKIN DTL LVL: Skin detail level adjustment on colours selected by the "SKIN"
function. To use "SKIN", refer to paragraph 2.2.8.3 - "SKIN functions and use".
• SKIN VIEW: Use of indicators (rectangle and zebras) of the "SKIN" function. To use