Operation Manual

MAVO LF Operation Manual（KineOS 6.2）

3.7.4 ISO and EI

EI / ISO is a group of settings to capture light on the Sensor. MAVO LF supports

ISO and EI mode, and the EI / ISO value is displayed at the upper right corner of

the main interface.

ISO Mode

Nominal value of ISO is ISO ASA, takes effect on the RAW data, applying

different gain on the CMOS imaging sensor. The default mode is ISO mode,

ISO800, highlight level (Highlight, that is from 18% gray to ADC Clip) is 4.3 stops.

Highlight Stops

As the name suggests, more highlight stops means less shadows details. Less

shadows may mean more noise. If you want to retain more highlight details, we

suggest increasing to higher than 4.3 stops or use EI mode. Changing ISO does

not change highlight stop.

To set the highlight stops:

[ConfigurationShootingISO Highlight Stops],

choose from 3.3~5.6 stops. For different highlight stop, camera has minimum

ISO value, for example: highlight stop is 3.6, minimum ISO is 200, while for 4.3

stop, minimum ISO 320.

EI Mode

The nominal EI value is similar with the setting in Alexa or RED cameras.

Changing value of EI affects the Highlight and shadow stops, image brightness

adjusted by digital gain while analog gain of the CMOS imaging sensor remains

unchanged.

Change EI: sensitivity and dynamic range unchanged, while highlight and

shadow stops changed, and image brightness changes. The highlight of EI 640 is

5.3 stops, and 5.6 stops for EI 800. Switch between EI/ISO:

[ConfigurationShootingSensitivity Mode].

Difference between ISO mode 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 value doesn't change the sensitivity of the CMOS imaging sensor, but use

digital gain on the camera, which changes highlight as a result.

Menu Operation

Set Highlight

[ConfigurationShooting

ISO Highlight Stops]

Menu Operation

Change Sensitivity Mode

[ConfigurationShooting

 Sensitivity Mode]