Leica N Plan L 20x/0.40 Long Working Distance Objective (NA 0.40, WD 10.8mm, Infinity, M25)

The Leica N Plan L 20×/0.40 is a long working distance objective from Leica’s N Plan L series — a line specifically engineered to provide extended working distance through the use of special optical elements, enabling high-magnification imaging in specimen configurations that standard objectives cannot accommodate. The 10.8mm working distance is exceptional for a 20× objective, providing ample clearance for the full range of standard tissue culture vessels — multi-well plates, Petri dishes, T-flasks, and imaging chambers — as well as thick substrates, environmental chambers, and other configurations where standard 20× objectives (typically 1–2mm WD) would be impractical. At 20× with NA 0.40, this objective provides a wide field of view for monitoring cell cultures, imaging tissue sections, and surveying large specimen areas, with sufficient resolution for cell morphology, migration, and proliferation studies. The plan correction ensures flat-field imaging for consistent image quality across the full field of view, essential for accurate cell counting, area measurements, and documentation. Compatible with Leica DMI, DM, and SP series microscopes with M25 thread nosepieces. Supplied new from stock, catalog number 11566049.