Leica Tri-Elmar-M 16-18-21mm f/4 ASPH. Lens

🔹 Unique three-focal-length lens: Seamlessly switch between the 16mm, 18mm, and 21mm focal length positions to adjust your field of view.

🔹 Super wide-angle lens: Designed to notably reduce distortion and field curvature for interior and architectural subjects.

🔹 Two aspherical elements: Limit spherical aberrations, improving sharpness and clarity at each focal length setting.

🔹 Internal manual focusing design: Achieves consistent image quality throughout the focusing range at each focal length.

🔹 Floating elements system: Maintains image quality even at a minimum focusing distance of 1.6'.

🔹 Aspherical elements: Contribute to a more compact form factor.

🔹 Male threaded front: Accepts an included lens hood or optional 67mm filter holder.