4
Advantages
Objective Lens Comparison List
Nikon Magnification Numerical Working Distance Olympus Magnification Numerical Working Distance
Aperture (N.A) (W.D.) (mm) Aperture (N.A) (W.D.) (mm)
5 0.15 23.5 5 0.15 20.0
10 0.3 17.5 10 0.3 10.1
20 0.45 4.5 20 0.46 3.1
50 0.8 1.0 50 0.8 0.7
100 0.9 1.0 100 0.95 0.3
20 0.4 13.0 20 0.4 12.0
50 0.55 10.1 50 0.5 10.6
100 0.8 3.5 100 0.8 3.4
20 0.35 24.0 20 0.35 21.0
50 0.45 17.0 50 0.45 15.0
100 0.7 6.5 — — —
LU Plan Fluor EPI
LU Plan EPI ELWD
(long working distance)
L Plan EPI SLWD
(ultra-long working
distance)
UM Plan FL
LM Plan FL
(long working
distance)
SLM Plan
(ultra-long working
distance)
UM Plan FL BD
(for Brightfield/
Darkfield)
<For Brightfield>
Nikon Magnification Numerical Working Distance Olympus Magnification Numerical Working Distance
Aperture (N.A) (W.D.) (mm) Aperture (N.A) (W.D.) (mm)
5 0.15 12.0
10 0.3 6.5
20 0.46 3.0
50 0.8 0.7
100 0.9 0.3
50 0.8 1.0
100 0.9 1.0
5 0.15 12.0
10 0.25 6.5
20 0.4 3.0
50 0.75 0.7
100 0.9 0.3
20 0.4 13.0 20 0.4 12.0
50 0.55 9.8 50 0.5 10.6
100 0.8 3.5 100 0.8 3.4
LU Plan Fluor BD
LU Plan BD ELWD
(ultra-long working
distance)
<For Brightfield/Darkfield>
UM Plan FL BDP
(for Nomarski DIC)
M Plan FL BD2
(for Brightfield/
Darkfield)
LM Plan FL BD
Brightfield
The antiflare design applied to the objective lenses and light source ensures bright, and
high-contrast images.
Brightfield observation
5 0.15 18.0
10 0.3 15.0
20 0.45 4.5
50 0.8 1.0
100 0.9 1.0