A Leica close-up attachment — not a lens but a diopter accessory for macro work on Leica systems.
The Leica ELPRO 180 is a close-up diopter attachment, not a standalone lens. It mounts on the front of compatible Leica telephoto lenses to reduce their minimum focus distance, enabling closer-than-normal photography. Leica's ELPRO series provides optical-quality close-up capability without the complexity of extension tubes or bellows systems.
As a close-up diopter, the ELPRO 180 is a single or multi-element optical attachment that modifies the host lens's focusing range. Quality is excellent — Leica's ELPRO attachments are precision-engineered optical accessories, not cheap screw-on diopters. They maintain the host lens's image quality far better than standard close-up filters would.
The ELPRO 180 is designed for use with Leica 180mm and similar focal length lenses. It attaches to the front filter thread of the host lens. Weight is minimal. Build quality is excellent with precision Leica engineering. The accessory adds close-up capability without losing infinity focus on most configurations.
Available on the used market at moderate Leica accessory prices. Check for clean optical surfaces and undamaged threads. Only of interest to Leica system owners with compatible telephoto lenses. A quality close-up solution that maintains Leica optical standards — vastly better than generic screw-on close-up filters.