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Spot Size Ratio (SSR) and Distance Measurement
This is perhaps the most crucial concept related to the lens. The SSR defines the ratio between the distance to the target and the smallest spot size the detector can accurately measure.
By Veljko Massimo PlavsicSpot Size Ratio (SSR) and Distance Measurement
This is perhaps the most crucial concept related to the lens. The SSR defines the ratio between the distance to the target and the smallest spot size the detector can accurately measure.