Prescanning
The usual method of operating the Better Light camera centers around the tasks of prescanning the scene, adjusting parameters to achieve the intended image, then scanning the final image. This method allows for iteratively adjusting the composition, lighting and exposure to give the photographer confidence that
the image on screen will be the same one captured in the final scan.
Making a Prescan
The digital camera has a significant advantage over film in that representative image data can be viewed immediately after the exposure, allowing accurate and repeatable determination of exposure, color balance, and tonal range. This enables the photographer to precisely adjust the exposure and processing conditions for each image, and to neutralize any unwanted color cast, or to introduce color filtration as desired.
In addition to evaluating the preview image visually, a digital spot meter permits the photogra- pher to accurately measure any point location within the preview image, and a histogram display pro- vides an overall indication of the distribution of image data values.
There are two types of prescans available; the normal prescan and the fast prescan. Both types of
prescans can be initiated by clicking on the 
button in the main control area.The camera will then begin a prescan at the lowest resolution available for your model camera:
model 4000 series: 20% (1000 x 750 pixels, 4.2 MB)
model 6000 series and Super 6K™ series (1000 x 750 pixels, 4.2 MB) Super 8K™ series (888 x 666 pixels, 3.4 MB)
To give the most accurate representation of the final scan image normal prescans are taken using the currently selected Line Time, ISO, Color and Tone settings. The time necessary to complete the prescan is displayed above the Prescan button.
Prescans of images to be captured without a tone curve (the “None
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