Distance & Spot Size - PeakTech 4955 Bedienungsanleitung

4. Distance & spot size
The greater the distance (D) to the object, the larger the area (S)
measured by the device. The relationship between distance and field size
for each unit is shown below. The focal point for each unit is 36" (914
mm). The measurement spot sizes indicate 90% of the encircled energy.
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