Photo mode is activated by selecting the "On/Off" checkbox in the top left area of the Photo TAB window. The "Light Level," "Grid," and "Fixture," can be individually turned on and off by checking and un-checking the associated check boxes.

Two intensity filters are provided. It is recommended that the "Non-Linear" option be used most of the time as this provides the most realistic visual output as shown below:

The lower light levels are enhanced to compensate for the dynamic range limitations of the screen. The raw output is available by selecting "Linear" with the resulting output shown below:

The Negative check box when selected will display the negative of the image.