D800 @ x 0.41

Resolution: This lens achieves good resolution in the centre but corner resolution is disappointing. This lens performs well for non-macro photography but has strong competition from lenses designed for macro performance. The results compare more favourably on the D500 DX sensor

Chromatic Aberration: High but decreasing to moderate stopped down

Vignetting: High at f/4 but moderate stopped down

Macro Sweet Spot: f/11