Better Light 7 Manuel D’Utilisation

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For a rollout, the camera is fixed to a tripod and the stepper stage unit is placed on a firm, non-

skid surface in such a manner that it will not turn as the motor is activated. A flat platform is attached 
to the stage armature then mounted to the stepper motor stage. The subject is positioned in the 
center of the platform such that the center of the object is in line with the center of the stepper motor 
stage. The camera is adjusted to put the center of the object in the exact center of the camera’s image 
area.

A rollout image is very dependent on the 

setup to maintain a square aspect ration in the 
final image. There are several ways to accomplish 
this. The first method is to enter the appropriate 
values into the Object Height and Object Diam-
eter fields. This method depends on the object 
filling the vertical field of view exactly. 

If the object does not completely fill the 

field of view, then a way to specify the vertical 
image height must be used. This can be accom-
plished by using the crop tool to set a cropped 
region whose height exactly corresponds to the 
height of the object in the preview and whose width is the entire width of the prescan. Then check 
the Crop box. The aspect ratio will be calculated and the preview image resized to the calculated 
aspect ratio.

Another technique for calculating the rollout values is to perform a prescan, then select a region 

with the crop tool that is square on the object. Then click the Square-It-Up button (the fancy button 
below the Crop checkbox). The preview image will be resized and the parameters will be calculated to 
make the selected region square in the final image.