Filter
Top Products
52
Selecting the Gamma
Chapter 3 Basic Adjustments and Settings
3-11-2 Using the Hyper Gamma
Hyper Gamma enables the wide dynamic range of the
CCD sensors to be reproduced in smooth contrast without
using the knee function.
You can easily adjust whether to widely reproduce high
contrast or to brightly reproduce the luminance of the
intermediate tones by selecting an appropriate curve.
Settings assuming usage of postproduction devices having
a white limit of 100% are also provided.
1
Select HYPER on the first line of TABLE on the
<GAMMA> page, and select the hyper gamma table
most suitable to the shooting conditions and purpose.
These curves are equivalent to those built into the HDW-F900R HD
Camcorder.
2
Call the <WHITE CLIP> page of the PAINT menu and
adjust the white clip level to fit the selected hyper
gamma.
3-11-3 Using the S-LOG
When SPECIAL is selected on the first line of TABLE on
the <GAMMA> page, the second line indicates S-LOG
(Sony Log).
Sony Log (S-LOG in subsequent texts) is a gamma which
assumes use in the DI workflow (capturing filmed negative
images and creating a digital master through digital
processing for screening) in cinema production.
S-LOG enables you to monitor the latitude close to
negative film and perform the timing (color correction)
with a Sony digital cinema camera, achieving “Digital
Negative” that is the optimum negative film work flow for
digital processing.
With this “Digital Negative” you can have the conventional
shooting style, using ISO sensitivity, luminometer and the
wide latitude of negative film, enabling smooth transition
from film production to digital cinema production.
Detailed information of S-LOG is described in the “SONY-
LOG Whitepaper.”
For the “SONY-LOG Whitepaper,” consult your local Sony
representative.
3-11-4 Using the User Gamma
You can also create a desired gamma table, using a
personal computer on which software CvpFileEditor™
1)
has been installed and load the table into the camera via a
“Memory Stick.”
When a user gamma table is selected, control of gamma
(LEVEL or ON/OFF) may become disabled, depending on
data of the table. This is because the gamma and knee are
compulsorily fixed when creating the gamma curve.
User gamma curves are initialized with S-LOG at the
factory. (The characteristic data of S-LOG can be output in
files, using the CvpFileEditor.)
1) CvpFileEditor is a trademark of Sony Corporation.
To select the user gamma
1
To use the gamma table you have created, load it into
the camera.
Load the gamma table data via a “Memory Stick”
using the <USER GAMMA> page of the FILE menu
in Custom mode.
Effective for shooting for
brighter tonal reproduction
around the skin of the
subject
Effective for shooting a
high-contrast subject
Hyper Gamma 3 (HG3)
Compressing 325% to 109%
Hyper Gamma 4 (HG4)
Compressing 460% to 109%
Hyper Gamma 1 (HG1)
Compressing 325% to 100%
Hyper Gamma 2 (HG2)
Compressing 460% to 100%
100
20
40
60
80
100
109
200 300
Video Input [%]
ITU-R709 HG3 HG4
400 500 600
Video Output [%]
800
100
20
40
60
80
100
109
200 300
Video Input [%]
S-LOG
HG1
HG2
400 500 600
Video Output [%]
800