code: public void setSampling( double min , double max , int total ) {
  		this.sampleMin = min;
  		this.sampleMax = max;
  		this.numSamples = total;
  		this.scores = new double[numSamples];
  	}
docs: Specifies how focal lengths are sampled on a log scale. Remember 1.0 = nominal length
  
  @param min min value. 0.3 is default
  @param max max value. 3.0 is default
  @param total Number of sample points. 50 is default