Lytro Illum User Manual page 47

Tap and sweep side to side to adjust the slider values. Adjust the light color temperature K to match the values on your color meter,
or until the gray on screen is a neutral value that matches the gray you see on the card in the scene. The color temperature range is
2000K - 10000K. Adjust Tint to fine tune the white balance, the default setting for Tint is 0. The counterclockwise arrow will reset the
Manual White Balance value to your original starting point. Tap the screen to return to Capture Mode.The Manual White Balance
value you've set will be stored in the camera until you edit it again.
Tap the sliders and sweep side to side to adjust their values. Tap the counter clockwise arrow to revert to the original Manual
White Balance.
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