#### Exposure

This parameter controls the exposure of the sensor. The default value of 150 will work well for most parts, but for parts that absorb a lot of light (such as a black anodized surface), you may need to increase the value. If you're using a sensor that supports the Gray Sum pixel locator type, PC-DMIS will set the Exposure value to a material-specific value when you choose a material type from the Material list on the Laser Pixel Locator Properties tab of the Probe Toolbox.

The following table shows the available minimum and maximum exposure values for the supported Perceptron probes:

| Perceptron Laser Probes
Normalized Exposure | V4i (Portable) | V4ix (DCC) | V5
Minimum Value: | 32 | 1 | 1
Maximum Value: | 627 | 627 | 1716

Setting this to an inappropriate value may result in less accurate measurements.

Note: For Perceptron sensors you can use the Toggle AutoExposure button on the Laser View to calculate the best exposure value for you. In addition, if you set the AutoExposeWithLiveView registry setting to TRUE, PC-DMIS will automatically set the exposure value in the probe toolbox to the best value every time you start the Laser View.