Super-Wide Angle with Excellent Image Quality. With its impressive 107° angle of view, the Leica 16-18-21mm f/4 Tri-Elmar-M ASPH conquers 16mm super wide-angle photography in perfect Leica-M style. Its minimal distortion and barely perceptible field curvature make it ideal for highly demanding architecture photography, even at the 16mm setting.

Two Aspherical Elements. Its two aspherical elements contribute to its ultra-compact form, while a new interior-focusing design significantly enhances quality in the close-focus range. You can therefore expect brilliant depth of field for hyperfocal photography from a distance of 0.33m.

Please note: To get the most out of this lens, we suggest using an external viewfinder to aid in shot composition.