Sigma 50mm F2 DG | Contemporary (L-Mount)

Reviewers found it very sharp from f/2, with excellent centre detail and good edges on full frame that even out by about f/5.6. Distortion is low, lateral colour fringing negligible and coma absent. Bokeh is smooth and undistracting, though not especially creamy, and highlights elongate somewhat towards the corners. Vignetting at f/2 is the most consistent complaint.

Autofocus was described as quiet and quick, and one reviewer found it much faster on Lumix bodies than older Sigma L-Mount Art lenses. Focus breathing is visible when racking through the full focus range. The metal build drew praise, while the aperture ring cannot be de-clicked. Reviewers recommend it as a well-made step up from budget fifties, while noting that f/2 limits background blur and that cheaper 50mm options exist.