Overview; Gamma Compensation; Major Functions Of Cvpfileeditor - Sony F35 User Manual

Overview

Cameras of the Sony CineAlta series are equipped with
the User Gamma function, which enables users to set
desired tone curves at will, using the gamma
compensation capability.
CvpFileEditor is a tool for freely creating and controlling
the gamma compensation characteristics of the cameras.
Cameras on which gammas created by
CvpFileEditor can be used
• HDC-900 series (AT Ver. 1.3 or later)
• HDC-F950
• HDW-F900 (AT Ver. 2.xx or later)
• HDW-F900R
• F23
• F35
• HDC1000 series (optional HZC-UG444 required)

Gamma Compensation

For compensation for smooth contrast
characteristics as a successor to knee
compensation
Knee compensation is a function to compress the contrast
for high luminance by a polygonal curve. As the contrast
characteristics sharply change at the turn-off point of the
polygonal curve, a point may be visible on a subject that
has smooth gradation. In addition, skin color of high
luminance is prone to coming out yellow.
By setting user gamma, smooth gradation can be
reproduced without sharp turnoff that may be seen with
knee compensation, while maintaining high-luminance
contrast.
Optimum characterizing according to the
dynamic range of each camera
The F23/F35 Digital Cinematography Cameras can have
a dynamic range of 800% at maximum, enabling contrast
reproduction at higher luminance than conventional
cameras of 460% dynamic range.
The User Gamma function enables creation of the
optimum gamma curve according to the dynamic range of
each camera.
Optimum characterizing for postproduction
With a curve set for usual video materials to mainly
compress high-luminance contrast, color grading for high
luminance is not sufficiently allowed.
User gamma setting permits you to decrease total contrast
for easy postproduction processes.
Image creation by directly adjusting camera
outputs
If direct outputs from the camera are used without
assuming postproduction, user gamma can be used as a
function for real-time tone control.

Major Functions of CvpFileEditor

Management of gamma data and user gamma
files
You can manage created gamma data with a list.
As the data can be grouped as a user gamma file to install
in a camera, it is easy to replace gammas in a camera,
depending on shooting scenes and conditions.
A title and various comments can accompany your
gamma data, which can be used as a reminder of the
recording condition or tips when editing other gamma
data.
Strongly enhanced curve editing functions
Parameter Edit mode is added to automatically create an
optimum gamma curve by specifying some major
parameters that determine the gamma. You can arbitrarily
specify elemental parameters, such as dynamic range,
white limit, 18% gray (middle tone), black level, and
initial gain. You can also intuitively change these
parameters by operating a graphic display with your
mouse.
Custom Edit mode is also available for more detailed
gamma data editing, permitting you to freely edit without
parameter setting.
Unlimited hyper gamma setting
As a function for parameter editing, hyper gamma can be
selected. Hyper gamma is a gamma curve based on an
algorithm unique to Sony. It reproduces natural contrast
and colors from middle tone to high luminance on a
monitor screen.
It features convenient adjustability to record images to be
used as-is for video materials or as raw materials to be
processed in postproduction.
Direct transmission of gamma data via
1)
Ethernet
In addition to the conventional installation method that
uses a Memory Stick, created data can be sent in a few
seconds to a camera (if it is F23 or F35) via Ethernet for
checking the characteristics of the curve on the spot. This
may be especially convenient for real-time process of the
tone curve according to subjects.
Renewal operation displays
All the graphical windows are newly designed to enable
management and editing operations for gamma data, as
1)
1)
1)
3
Overview