Earlier this week Sigma introduced its new 20mm F2 DG DN lens for E-mount and L-mount cameras, the widest within the firm’s all-metal ‘I collection’ of compact prime lenses. Try our pattern gallery to see how its picture high quality stacks up.

Need to be taught extra about this lens? Watch our hands-on assessment from DPReview TV.

View our Sigma 20mm F2 DG DN pattern gallery