Samsung nx200 ユーザーガイド

Camera settings menu > 

User settings 

Distortion Correct

You can correct lens distortion that might occur from lenses.  
This feature may not be available with some lenses.

iFn Customizing

You can select options that can be adjusted when you press 
[i-Function] on an i-Function lens.

* Default

Aperture

Set to adjust the aperture value.

Shutter Speed

Set to adjust the shutter speed.

EV

Set to adjust the exposure value.

ISO

Set to adjust ISO sensitivity.

WB

Set to adjust the white balance.

i-Zoom

Set to adjust the zoom ratio.