Checking and Adjusting for Proper Focal Distance

1. Define a target to adjust a focal distance of the camera.
   Position your camera above the area where you are going to search for parts, and place an object within the camera's field of view.

2. Now, you can see the object that you put under the camera in the image display of the Vision Guide window.
   If not, move the part manually in front of the camera. Then, check if you can see the target feature. (it does not matter if the it is out of focus) If you cannot see the target, you may have selected the lens not suitable for the distance between part and the camera. Try a different size lens.

3. For mobile cameras, the 16 or 25 mm lens are usually used.
   Therefore, when you are testing a Mobile camera, try to start with a 16 mm lens.

4. At this point, you can see at least the target feature on the work surface. Adjust the focus of the lens to bring the part into a good focus.
   If you cannot bring the part into focus, add an extension tube between the lens and the camera. This will change the work distance of the lens. To adjust the work distance of the camera lens, the extension tube with a proper length should be selected.

5. After installing the extension tube, adjust the focus of the camera lens. You may need to try some extension tubes with different lengths to get proper focus.

A list of the common lens and extension tube configurations for various focal lengths. Refer to the following:

Hardware - Extension Tube Work Distance

Now the installation is completed.

Go on to the following manual. This chapter describes how to position the parts and how to carry them by the robot using the Vision Guide.
“Vision Guide Software - Quick Start: A Vision Guide 8.0 Tutorial”