PC-E Micro NIKKOR 85mm f/2.8D

D500 @ x 0.5

This lens show average to good resolution from f/6 to f/12

Resolution: Very even resolution across the whole frame at f/8.5 and f/12

Chromatic Aberration: Moderate across all apertures

Vignetting: Low at all apertures

Macro Sweet Spot: f/12