What was the sensor resolution with a minimal CPU usage for a naturalpoint trackir 3 pro?
CREATE TABLE "comparison_of_some_cameras_compatible_wi" (
  "camera" text,
  "sensor_resolution" text,
  "sensor" text,
  "output" text,
  "cpu_usage" text,
  "ir_le_ds" text
);
SELECT "sensor_resolution" FROM "comparison_of_some_cameras_compatible_wi" WHERE "cpu_usage"='minimal' AND "camera"='naturalpoint trackir 3 pro';