24
Basic Operation of the Camera
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Chapter
3
Basic Adjustments and
Settings
3-1 Basic Operation of
the Camera
The camera operates in two modes: Cine mode and
Custom mode. In Cine mode, the camera acquires main
line video information, without processing, for color
grading in post-production while applying basic grading to
the VF and SDI outputs. In Custom mode, images are
created on location by adjusting the black/white level and
gain of the main line signal.
Cine mode
• Shoots images with a fixed camera gain, and sensitivity
specified using a light meter (EI mode).
• Sensitivity can be selected from 200EI, 250EI, 320EI,
400EI, 500EI, 640EI, 800EI, 1000EI, 1250EI, 1600EI,
2000EI, 2500EI, and 3200EI.
• In post-production, the gain can be set to the sensitivity
selected during shooting.
• In intensified sensitivity shooting (e.g. 1600EI), the gain
is automatically adjusted in response to the selected
sensitivity for the VF/SDI/HD-Y outputs, even though
the master video output darkens, to maintain appropriate
monitoring levels.
• The Master Gain, Black R/G/B/M, White R/G/B, and
Gamma R/G/B/M adjustment functions for master video
output are fixed at factory default values.
• In HD mode, the video gamma can be set to S-Log2 or
selected from user gammas.
• Video adjustment using ASC CDL is supported for the
VF/SDI/HD-Y outputs. The adjustments are recorded as
metadata together with the video for each frame. The
video adjustments made during shooting can be
recreated in post production by applying the metadata
values to the video.
• The full latitude does not change when the sensitivity
setting is changed, but the dynamic range and noise floor
changes in post-production with suitable processing.
When the sensitivity is set high, the dynamic range
increases on one hand, while the noise in dark areas also
increases. Conversely, when the sensitivity is set low, the
dynamic range decreases but the noise in the dark areas
also decreases.
Custom mode
This mode allows camera gain to be adjusted and black/
white level to be adjusted from the camera menu or
optional remote control unit (RM) while shooting.
• Camera gain is adjustable in the range –6 dB to +12 dB
in 3 dB increments (EI adjustment not supported).
• Black/white level is adjustable.
• Black/White, Gain, and following operations can be
controlled from a remote control unit.
—Shutter Speed
—Filter Select
—Rec Start/Stop
—Rec Review
—Bars/Test Signal
—12p Iris Control
The white balance can be set to 3200K (tungsten), 4300K
(tungsten), or 5500K (daylight).
The camera supports HD mode recording, where images
are down-converted to HD internally and recorded on the
SR-R4. The recording format can be selected between HD
mode and F65RAW mode.