Olympus BX61 - Page 32

28
Optical
character
Magnifi-
cation
N.A.
W.D.
(mm)
Cover
glass
thick-
ness
(mm)
Reso-
lution
(μm)
Eyepiece
WHN10X (FN22)
Remark
Objective
Total mag.
Depth of
focus
(μm)
Field of
view
100X 0.95 0.20 0.14-0.20 0.35 1000X 1.0 0.22 Correction collar
PlanFl
Plan Semi
Apochromat
(FN26.5)
20X3/340 0.75 0.55 0.17 0.45 200X 4.3 1.1
20XW3/340 0.70 0.40 0.17 0.48 200X 4.08 1.1
40X3/340 0.90 0.20 0.11-0.23 0.37 400X 2.0 0.55 Correction collar
40XW3/340 1.15 0.26 0.13-0.25 0.29 400X 1.29 0.55 Correction collar
40XOI3/340 0.65-1.35 0.10 0.17 0.25 400X 1.2 0.55 Oil immersion/Iris
UApo
Apochromat
(FN22)
UIS
Series