Log Recording

Setting [Photo Style] to [V-Log] enables Log recording. Images finished with rich gradation can be created through post production processing.

 

[MENU/SET] arrow_menu [menuicon_video] arrow_menu [menuicon_imagequality] arrow_menu [Photo Style] arrow_menu Select [V-Log]

 

ISO Sensitivity When [V-Log] Is Set

The lower limit of available ISO sensitivity is [640] (when [Extended ISO] is set: [320]), and the upper limit is [51200].

The range of available ISO sensitivities is also different for [LOW] and [HIGH] in [Dual Native ISO Setting].

Reset the exposure if necessary when ISO sensitivity changes.

 

Exposure 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%.

 

hyo_v-log_l

 

maru_alphabet_aReflectance ratio: 18%

maru_alphabet_bReflectance ratio: 90%

 

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

Reflectance ratio (%)

0

18

90

IRE(%)

7.3

42

61

Stop

―

0.0

2.3

10 bit code value

128

433

602

12 bit code value

512

1732

2408

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

 

[V-Log View Assist]

When [Photo Style] is set to [V-Log], images output via HDMI/SDI will darken. Using [V-Log View Assist] means you can output images with LUT data applied via HDMI/SDI.

 

[MENU/SET] arrow_menu [menuicon_custom] arrow_menu [menuicon_moniter_display] arrow_menu Select [V-Log View Assist]

[Read LUT File]

Reads LUT data from the card.

[LUT Select]

Selects the LUT data to be applied from among the preset ([Vlog_709]) and registered LUT data.

[LUT View Assist (HDMI)]

Applies LUT data to images output over HDMI.

[LUT View Assist (SDI)]

Applies LUT data to images output over SDI.

 

Reading LUT Files

The following LUT data can be used:

–The “.vlt” format, which meets the requirements specified in the “VARICAM 3DLUT REFERENCE MANUAL Rev.1.0”

–File names consisting of up to 8 alphanumeric characters (excluding extension)

Save the LUT data with a file extension of “.vlt” in the root directory of the card (the folder opened when the card is opened on a PC).

number_k_01Insert a card on which LUT data is saved into the camera.

number_k_02Select [Read LUT File].

[MENU/SET] arrow_menu [menuicon_custom] arrow_menu [menuicon_moniter_display] arrow_menu [V-Log View Assist] arrow_menu [Read LUT File] arrow_menu [Card Slot 1] / [Card Slot 2]

number_k_03Press sankaku_u_d to select the LUT data to read and then press [MENU/SET].

number_k_04Press sankaku_u_d to select the location to register the data, and then press [MENU/SET].

When registered items are selected, they will be overwritten.