Panasonic

Log Recording

character_bullet-large[Log View Assist]


icon_mode-photoicon_mode-movie

icon_mode-ia_grayicon_mode-picon_mode-aicon_mode-sicon_mode-micon_mode-creative-motion

Setting [Photo Style] to [V-Log]/[ARRI LogC3] enables Log recording.

Images finished with rich gradation can be created through post-production processing.

bullet02[ARRI LogC3] can be used only when you have used the Upgrade Software Key (DMW-SFU3A: optional) and enabled the function with [Activate]. (è[Activate])

– This is available in [icon_mode-p-motion_table] mode.

– Recording qualities that enable use of the [ARRI LogC3] (character_referenceList of Recording Qualities That Enable Special Videos to be Recorded)


button_menu-set character_arrow [icon_movie] character_arrow [icon_photo-quality] character_arrow [Photo Style] character_arrow Select [V-Log] or [ARRI LogC3]

gui_video-photo-style-v-log_eng


icon_hints_s

bullet02Post-production processing is enabled by utilizing LUT (Look-Up Table).

You can download the LUT file for [V-Log] from the following support site:

https://panasonic.jp/support/global/cs/dsc/download/index3.html

(English only)


Download the LUT file for [ARRI LogC3] from the following:

(1) ARRI Look Library (LogC3-to-Rec709)

A LUT file with the ARRI Look File applied for the Rec.709 color space.

There are 87 types of Look Files, providing you with a great variety.

https://www.arri.com/resource/blob/365070/de67ce8908d30b22d83526dc4c1c8732/arri-look-library-logc3-to-rec709-3d-luts-data.zip


(2) ARRI Look Library (log-to-log)

A LUT file for applying Looks with the Log space as is with its rich color information.

Similarly to (1), there are 87 types of Look Files, providing you with a great variety.

https://www.arri.com/resource/blob/283984/763aadc4a2be5c301529704b1357513c/arri-look-library-logc3-log-to-log-3d-luts-data.zip


(3) ARRI LogC3 LUT Package

A LUT file for converting from ARRI LogC3 to the color spaces of a variety of display devices.

By going through (2) ARRI Look Library (log-to-log), it is possible to produce the Look according to the color space you are aiming for.

https://www.arri.com/resource/blob/294620/f4290b963ff83a4dde4fff795645bc26/2022-09-arri-logc3-v1-2-lut-package-data.zip


Refer to the following site for information regarding ARRI Look Files:

https://www.arri.com/en/learn-help/learn-help-camera-system/image-science/look-files


character_diamondISO Sensitivity When [V-Log] Is Set

ISO sensitivity can be set in the range between [500] and [12800] (sensor output 60 fps or lower) or between [250] and [3200] (sensor output 61 fps or higher). You can set between [125] and [12800] when [Extended ISO] is set.


character_diamondISO Sensitivity When [ARRI LogC3] Is Set

ISO sensitivity can be set in the range between [320] and [12800] (sensor output is 60 fps or less) or between [160] and [3200] (sensor output is 61 fps or more). When [Extended ISO] is set, it can be set in the range between [160] and [12800] (sensor output is 61 fps or more).


character_diamondExposure When [V-Log] Is Set

The [V-Log] curve characteristics comply with “V-Log/V-Gamut REFERENCE MANUAL Rev.1.0”. When set to [V-Log], the standard exposure when gray with a reflectance ratio of 18 % is imaged is IRE 42 %.


image_v-log-character


When [Photo Style] is set to [V-Log]

Reflectance ratio (%)

IRE (%)

Stop

10 bit code value

12 bit code value


0

7.3

—

128

512

(1)

18

42

0.0

433

1732

(2)

90

61

2.3

602

2408

bullet02When luminance is to be displayed by “Stop” units, this camera calculates IRE 42 % to “0 Stop”.



character_diamondExposure When [ARRI LogC3] Is Set

The log characteristics of [ARRI LogC3] comply with 800 ASA (EI 800), described in “ARRI_ALEXA_LogC_Curve_in_VFX.pdf” released by ARRI. The log characteristics of [ARRI LogC3] on this camera do not depend on the ISO sensitivity settings. However, according to the Exposure Stops values defined in 800 ASA (EI 800), there will be the equivalent of 2 stops worth of clipping with sensor output of 60 fps or less and the equivalent of 3 stops worth of clipping with sensor output of 61 fps or more.


Refer to the following for “ARRI_ALEXA_LogC_Curve_in_VFX.pdf”:

https://www.arri.com/resource/blob/31918/66f56e6abb6e5b6553929edf9aa7483e/2017-03-alexa-logc-curve-in-vfx-data.pdf


Diagram of the log characteristics of [ARRI LogC3] on this camera

image_arri_logc3-character

(1) 18 % gray

(2) Clipping level (sensor output 61 fps or higher)

(3) Clipping level (sensor output 60 fps or lower)

When [Photo Style] is set to [ARRI LogC3]


Exposure Stops

(18 % gray standard)

Full range

Video range


IRE (%)

Code Value

IRE (%)

Code Value


10 bit

12 bit

10 bit

12 bit

Black level

—

3.5

95

380

9.2

145

580

(1)

0.0

38

400

1600

39

407

1628

(2)

4.6

78

748

2992

73

705

2820

(3)

5.6

87

824

3296

81

770

3080


bullet02When the [Photo Style] is set to [ARRI LogC3] or [REAL TIME LUT] (base Photo Style is [ARRI LogC3]), the [Luminance Level] is fixed to [64-940] (video range).

bullet02The recorded data is recorded as video range.

bullet02HDMI output is output as video range.

bullet02The waveform and vector scope are both displayed as video range.

bullet02The luminance spot meter displays the 18 % gray output level as 0 Stop.


icon_related-info_s

bullet02Luminance can be checked by “Stop” units:

(character_reference[Luminance Spot Meter], [Zebra Pattern])


[Log View Assist]

When [Photo Style] is set to [V-Log]/[ARRI LogC3], the recording screen and images output via HDMI will darken. Using [Log View Assist] means you can show images with LUT file applied on the monitor/viewfinder and output them via HDMI.


button_menu-set character_arrow [icon_custom-menu] character_arrow [icon_video-display-output] character_arrow Select [Log View Assist]


[LUT Select(V-Log)]

Selects the LUT file to apply from a preset or LUT files registered in [LUT Library]. (character_reference[LUT Library])


[LUT Select(ARRI LogC3)]

Selects the LUT file to apply from a preset or LUT files registered in [LUT Library]. (character_reference[LUT Library])

bullet02The function can be used only when you have used the Upgrade Software Key (DMW-SFU3A: optional) and enabled the function with [Activate]. (è[Activate])


[LUT View Assist (Monitor)]

Displays the images with LUT file applied on the monitor/viewfinder of the camera.


[LUT View Assist (HDMI)]

Applies LUT file to images output over HDMI.



icon_info_s

bullet02When applying the LUT file, [LUT] is displayed on the recording screen.

bullet02When [Photo Style] is [V-Log], you cannot apply LUT files which are a base Photo Style other than [V-Log].

bullet02When [Photo Style] is [ARRI LogC3], you cannot apply LUT files which are a base Photo Style other than [ARRI LogC3].

bullet02[LUT View Assist (Monitor)]/[LUT View Assist (HDMI)] are not available when [LUT] is applied in the [Photo Style] image quality adjustments.