Spherical Lens Aberration Estimator

Focal Length (f) Aperture (f-number, N) Wavelength (λ) Δλ (Optional for Chromatic Aberration)

Input Parameters:
f = Focal length
N = Aperture f-number
λ = Wavelength
Δλ = Wavelength range for chromatic aberration (optional)

Spherical Aberration = ?

Chromatic Aberration = ?

Output Parameters:
Spherical Aberration ~ approximate
Chromatic Aberration ~ computed if Δλ provided