Table 2. Comparison between theoretical and simulated focal lengths for different CRL models.

	Focal length (m)
Lens model	Calculated	Fit	Difference
Single lens equivalent	0.470 [equation (2)]	0.470	–
CRL multi-slicing	0.473 [equation (3)]	0.473	<0.1%
CRL-MS+FF	0.465 [equation (3)]	0.465	<0.1%