I wonder if some of the lenses in the camera are made out of polycarb?

Chromatic abberation is not a feature of polycarbonate. No optical media has index of refraction exactly same for various wavelenghts (wavelength vs. refraction index relationship is called dispersion relation). This is compensated for by coupling a strong convex lense with 'narrow' dispersion characteristic with a weaker concave one made of material that disperses more strongly. By careful matching of lense strength (inverse focal length) and dispersion charasteristic of material one can achieve for a lense group the same overall index of refraction for a range of wavelenghts.

Of course, there are other aberations to account for (spherical, diffraction effects etc).