Sony F35 사용자 설명서

37

Basic Settings with the Subdisplay

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At 1 on the first line, the gain value is selected from 
among the following: –6 dB, –3 dB, 0 dB, 3 dB, 6 dB, 9 
dB, and 12 dB. The corresponding ISO sensitivity is 
displayed in parentheses. For 2 on the first line, you can 
select either dynamic range or latitude for the indication 
(see “Indications of the ISO sensitivity and dynamic 
range” mentioned later).
On the second line, the color temperature is selected from 
TUNGSTEN or DAYLIGHT. 
With DAYLIGHT, electrical gain of 5600K is ON.

At shipment, the gain is set to 0 dB, and the color 
temperature is set to TUNGSTEN.
The white balance adjustment value is fixed at the preset 
value (3200K).

The first line is in common with Cine mode.
At 3 on the second line, electrical gain of 5600K can be 
switched ON or OFF.
At 4 on the second line, the white balance adjustment 
value can be selected.

At shipment, the gain is set to 0 dB, color temperature is 
set to 5600K-OFF, and the white balance memory is set to 
W:P.

The ISO sensitivity value displayed on the Gain setting 
page is defined as “the value with which the video input 
becomes 20% when shooting a gray-scale chart of 18% 
reflection rate.”
Note that the video output value with respect to this input 
will vary depending on the selected gamma.
Either dynamic range or latitude can be selected for the 
indication. 
The value displayed with % as a dynamic range shows the 
limit on the high-luminance side in percentage (100%= 

input level) in a case where the white of the gray scale 
provides 100% (700 mV) output with the ITU-R709 
gamma (standard gamma).
The value displayed with E as a latitude shows the latitude 
on the high-luminance side by an f-stop value, using a 
gray-scale chart of 18% reflection rate as the key light.
The gradation at the low-luminance side can be reproduced 
up to approx. –6.5 stop at 0 dB.

As the dynamic range indication shows a value for the 
input video, the dynamic range of the output video is 
limited by the output settings as follows:

• If a gamma other than S-LOG is selected
The upper limit is clipped according to the output video 
limitation specified by the gamma setting.
When you select a curve as Hyper Gamma No. 4, which 
compresses 460% input to 109%, the output video is fed 
within the range up to 460% of input video even if 800% 
is displayed on the subdisplay as the dynamic range as the 
output video is limited to 109%.
Using CvpFileEditor V4.1, you can change the dynamic 
range of Hyper Gamma and create a user gamma curve 
having no dynamic range limitation.

• If the white clip function is in use
As the white clip function limits the level of output video, 
the dynamic range specified for the input video may not be 
obtained for video output.

The value of the dynamic range may decrease by up to half  
at maximum, depending on the FPS settings.

Why the ISO sensitivity is defined for 20% input
Defining the level of gray scale of 18% reflection rate for 
the ISO sensitivity on the linear curve (defining with input 
signal) permits you to use the values as the absolute 
reference for proper gamma conversion in postproduction.
In addition, defining the output for 20% input with ITU-
R709 so that it becomes the reference code for Cineon 
curve allows high compatibility.

With this camera, the compensation data for the mounted 
lens can be adjusted in Custom mode and registered in the 
built-in memory in lens files (max. 32 files).
You can invoke the compensation data for the mounted 
lens by merely selecting the corresponding file.

W:P

Preset value (3200K)

W:A

The value stored in memory A

W:B

The value stored in memory B

 0dB(450)  800%  

5600K-ON   W:P

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