singlet - 100000 trials: min time 16.66, max time 16.80, spread 0.82%
landscape lens - 80000 trials: min time 16.51, max time 16.62, spread 0.68%
Sasian triplet - 50000 trials: min time 16.09, max time 16.39, spread 1.83%
double gauss - 30000 trials: min time 15.43, max time 15.68, spread 1.62%
2 spherical mirrors (spheres) - 100000 trials: min time 16.06, max time 16.25, spread 1.15%
2 spherical mirrors (conics) - 100000 trials: min time 16.66, max time 16.76, spread 0.62%
paraboloid - 100000 trials: min time 16.87, max time 17.09, spread 1.25%
Cassegrain - 100000 trials: min time 16.64, max time 16.90, spread 1.54%
Ritchey-Chretien - 100000 trials: min time 16.58, max time 16.86, spread 1.71%
cell phone camera - 10000 trials: min time 15.55, max time 15.68, spread 0.85%
