Distortions of images of Schwarzschild lensing

We model the supermassive dark object $M87^*$ as a Schwarzschild lens and study variations in tangential, radial, total (the product of tangential radial) magnifications images (primary, secondary, relativistic) against changes angular source position ratio lens-source to observer-source distance. Further, we behavior partial derivatives (with respect position) position. Finally, objects at centers 40 galaxies lenses change mass its These studies yield many nonintuitive results which are likely be significant for next generation Event Horizon Telescope observations. {\em hypothesize} that there exists distortion parameter such their signed sum all singular gravitational lensing identically vanishes. test this with weak strong fields find esthetically appealing hypothesis succeeds flying colors.