Gammill Vision User Manual page 27

The color of the thread and fabric impact the image clarity too. Try changing the Light intensity,
contrast and/or brightness to get the clearest image.
1. Press the Camera Settings Icon again to adjust other camera settings.
2. Change the Light intensity, Contrast and/or Brightness by touching the scales.
Touch the up arrow to increase, and the down arrow to decrease.
The adjustments take effect immediately, so fine tuning the picture is fast and easy.
3. Press Exit when done to see the larger image
4. Press Exit again to return to the stitching.
Your
Press the Camera icon to show the image on the screen.
Turn
Position the machine over some quilted area of the quilt.
Look at the screen image of the underside.
Change the light choices (LED to UV and back)
Press up / down arrows to adjust the image quality if desired.
Press Exit to return to the monitor screen.
Press Exit to return to the Main Screen.
Beyond the Basics: When working at the front of the
machine, put the laser light on the front mount, and point the
laser at the camera lens. This helps to identify the exact
placement of the camera image.
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(It takes a few seconds)
Camera eye is 3 ½" to
the left of the needle.