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2 Technical Data 2.2.4 Optical specifications • Make sure that the focus of the infrared camera is adjusted correctly. For focusing turn the lens (Figure 3). • For the PI 400 LW and PI 450 LW two different lenses are available: 38° x 29° and 62° x 49° FOV. Figure 3: Focusing of the lens 1 Lens Different parameters are important if using infrared cameras. They display the connection between the distance of the measured object and the size of the pixel (see Table 1). optris PI LightWeight Kit – E2014-11-B 21
