The design here is really intriguing with how it uses two doublet lenses with an aperture stop in the middle. The first lens's purpose is for spherical aberrations while the second lens is used to correct the astigmatism created by the first lens. The resulting curvature of the lens and vinaigrette is a really pretty aesthetic as a result.
The design here is really intriguing with how it uses two doublet lenses with an aperture stop in the middle. The first lens's purpose is for spherical aberrations while the second lens is used to correct the astigmatism created by the first lens. The resulting curvature of the lens and vinaigrette is a really pretty aesthetic as a result.