Photon trajectories obtained with PyGRO, fired by observers at positions r₀ ∈ [2, 6]M, around a Schwarzschild black hole with an initially tangential direction on the equatorial plane. Photons fired from below r₀ < 3M end up in the horizon. Photons fired from r₀ > 3M escape to infinity, after being strongly deflected by the central object (trajectories grazing closer to the r₀ = 3M circumference experience a stronger lensing). Finally, for r₀ = 3M, the photon describes a circumference around the central black hole corresponding to the unstable photon orbit. In Table 1, we label with (4), (5), and (6) the photons with r₀ = 2.1M, 3M, and 6M, respectively.