Kinefinity MAVO Edge 8K Digital Cinema Camera - Manual (Page 39)

MAVO Edge 8K Operation Manual (KineOS 7.0)
©2021 Kinefinity Inc. Page 39 / 61
3.8.4 ISO/EI
EI/ISO is a group of settings to capture light on the CMOS imaging sensor. MAVO Edge 8K supports both
ISO and EI mode, whose value display at the top of the screen.
ISO Mode
The nominal value of ISO is ISO ASA, which takes effect on the RAW data, applying different gain on the
CMOS imaging sensor. The default mode is ISO mode, ISO 640; the highlight level (Highlight means stops
from 18% gray to ADC Clip) is 5.0 stops.
Highlight Stops
As the name suggests, more highlight stops means less shadows details but
more noise. If you want to retain more highlight details, recommend to set 5.0
stops and above or using EI mode. Changing ISO will not change highlight stop.
The highlight stop is able to change from 4.3 to 7.3 stops in the menu. For
different highlight stops, the camera has a minimum ISO value, for example:
when the highlight stop is 4.6, minimum ISO is 200; while for 5.0 stops,
minimum ISO is 250.
EI Mode
The nominal EI value is similar to the settings in Alexa or RED cameras. The
highlight stop follows the change of EI value, but image brightness adjusted by
digital gain while analog gain of the CMOS imaging sensor remains unchanged.
Changing EI will change highlight stop and image brightness, while sensitivity and
dynamic range are unchanged. The highlight of EI 640 is 6.3 stops and EI 800 is 6.6
stops. You can switch between EI/ISO by the operation on the right.
Difference between ISO and EI mode:
In ISO mode, changing the ISO value means using analog gain on the camera, which changes the sensitivity
of CMOS imaging sensor, but the highlight stop remains unchanged.
In EI mode, changing the EI value doesn't change the sensitivity of the CMOS imaging sensor, but using
digital gain on the camera changes highlight as a result.
NOTICE In Live View, 18% gray matches EI value to maintain the same brightness for shooting and
post work.
NOTICE Recommend shooting in ISO mode if you don't fully understand the EI and ISO.
Dual ISO
MAVO LF supports Dual Native ISO: 640/2560, allowing it to capture low-noise image with high dynamic
range in regular scenes or low-light environment. When highlight level is 5.0, the native ISO from 200 to 640
is 640, and from 800 to higher is 2560. For EI mode, the native EI from 160 to 1280 is 640, and from 1280 to
higher ISO is 2560.
Menu Operation
Change Sensitivity Mode
[MENU  Shooting 
Sensitivity Mode]
Menu Operation
Set Highlight
[MENU  Shooting  ISO
Highlight Stops]