Make sure that the projected cross matches the blue grid and move on to the next step.
<aside> <img src="https://s3-us-west-2.amazonaws.com/secure.notion-static.com/cf987904-b99b-48f6-a05e-2d2bf3a18db5/Blank_-_Spacer.png" alt="https://s3-us-west-2.amazonaws.com/secure.notion-static.com/cf987904-b99b-48f6-a05e-2d2bf3a18db5/Blank_-_Spacer.png" width="40px" /> Please note, when the plate is located at a correct working distance, the vertical line of cross will match the central vertical blue line on the view from the cameras. Otherwise, you will notice the difference in one direction or the other.
</aside>
Adjust the lenses diaphragms. Set the exposure for the cameras between 30 and 60 (less if the object, which you are planning to scan is dark and more if it is bright). By default the value is 50.
Areas illuminated with red mean overexposed areas with too bright image.
Configure lenses iris so that the lines on the calibration plate are as bright as possible, but without a significant amount of excessive light. Image brightness of both cameras
must be the same!
<aside> <img src="https://s3-us-west-2.amazonaws.com/secure.notion-static.com/cf987904-b99b-48f6-a05e-2d2bf3a18db5/Blank_-_Spacer.png" alt="https://s3-us-west-2.amazonaws.com/secure.notion-static.com/cf987904-b99b-48f6-a05e-2d2bf3a18db5/Blank_-_Spacer.png" width="40px" /> In order to better align the same exposure on both chambers, you can leave a small area with excessive light (red area). The same "figure" of area with excessive light on both cameras will allow to more accurately set up the diaphragm of lenses.
</aside>
The lens focus is set during the scanner manufacturing and does not need to be adjusted by the user.
<aside> <img src="https://s3-us-west-2.amazonaws.com/secure.notion-static.com/d9822e79-f950-4a01-85bd-d97ffb1408fd/Blank_-_Spacer.png" alt="https://s3-us-west-2.amazonaws.com/secure.notion-static.com/d9822e79-f950-4a01-85bd-d97ffb1408fd/Blank_-_Spacer.png" width="40px" /> If excessive light does not disappear even when the diaphragm is closed, reduce the value of electronic exposure. Check the projector settings, probably the light is too bright. Reduce ambient light level.
</aside>
If you are setting up the 4th scanning area, it may be necessary to decrease the brightness of lines and stripes due to the close distance to object. In the menu Brightness setup decrease the brightness value, as shown in the figure. Brightness value of lines is approximately 2 times greater than the brightness of the stripes. Visually lines and stripes must be the same brightness.
<aside> <img src="https://s3-us-west-2.amazonaws.com/secure.notion-static.com/d9822e79-f950-4a01-85bd-d97ffb1408fd/Blank_-_Spacer.png" alt="https://s3-us-west-2.amazonaws.com/secure.notion-static.com/d9822e79-f950-4a01-85bd-d97ffb1408fd/Blank_-_Spacer.png" width="40px" /> After the end of the setting up procedure carefully lock sharpness and diaphragm rings with screws on the camera lenses in order not to lose their position. Relevant only for non-pre-configured lenses.
</aside>
Upon completion of all scanner adjustments, you should fulfill the following conditions:
