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Leica M-series User Manual 139
Leica M165 FC / Leica M205 FA
Leica M165 FC
Leica M205 FA
Optical data
Zoom
16.5 : 1 manual
20.5 : 1 automated with FusionOptics™
Data with standard optics (1×objec-
tive/10× eyepieces)
– Zoom range
– Resolution
– Working distance
– Object field
7.3×–120×
max. 453 lp/mm
61.5 mm (planapochromat)
∅ 31.5 mm – 1.92 mm
7.8×–160×
max. 525 lp/mm
61.5 mm (planapochromat)
∅ 29.5 mm – 1.44 mm
Maximum values (based on optics combi-
nation)
– Magnification
– Resolution
– Visible structural width
– Numerical aperture
– Object field
960×
906 lp / mm
551 nm
0.302
∅ 63 mm
1280×
1050 lp / mm
476 nm
0.35
∅ 59 mm
Working distances
135 mm (0.5× planachromat)
112 mm (0.8× planachromat)
67 mm (0.63× planapochromat)
61.5 mm (1× planapochromat)
30.5 mm (1.6× planapochromat)
20.1 mm (2× planapochromat)
135 mm (0.5× planachromat)
112 mm (0.8× planachromat)
67 mm (0.63× planapochromat)
61.5 mm (1× planapochromat)
30.5 mm (1.6× planapochromat)
20.1 mm (2× planapochromat)