Sample counts for image below

min 16 max 256 samples

Sample counts for the first image, black = 8 white = 64 samples

This is what happens when you forget that the value you set to 1 at the beginning of the class and forgot about actually needs to be changed now to represent the focal distance

Depth of field rendering with adaptive anti-aliasing. Min samples 8 max 64, incrementing by 1 sample each time. 95% confidence interval with 0.01 max error. Halton base 2 3 for pixel and 5 7 for circle of confusion. Took 3.315 seconds with 24 threads, ray generation takes quite a bit longer now before rendering starts