These microscope objectives are new improved
designs for large-series production. They
are attractively priced but perfectly suitable
for all modern routine microscopic work in
biology, medicine etc...
transmitted or reflected light
optimum field of view (in eyepiece), mm
18
maximum field of view (in eyepiece), mm
20
Some specifications:
tube length, mm
160
parfocal distance (RMS), mm
33
N
MAGNIFICATION
NUMERICAL APERTURE
TOTAL WORKING DISTANCE, mm
TYPE OF ABERRATION CORRECTION
1
3.5
0.10
25.0
PLANACHROMAT
2
8
0.20
10.0
ACHROMAT
3
9
0.20
14.0
PLANACHROMAT
4
10
0.25
4.2
ACHROMAT
5
16
0.35
3.7
ACHROMAT
6
20
0.40
1.66
ACHROMAT
7
40
0.65
0.66
ACHROMAT
8
90
1.25 OIL
0.28
ACHROMAT
parfocal distance (DIN), mm
45
N
MAGNIFICATION
NUMERICAL APERTURE
TOTAL WORKING DISTANCE, mm
TYPE OF ABERRATION CORRECTION
1
4
0.12
15.0
PLANACHROMAT
2
10
0.30
4.0
ACHROMAT
3
25
0.50
1.60
ACHROMAT
4
40
0.65
0.62
ACHROMAT
5
100
1.25 OIL
0.30
ACHROMAT
10
100
1.25-0.7 iris
0.29
C-PLANACHROMAT
tube length, mm
infinity
parfocal distance (DIN or RMS), mm
45 or 33
N
MAGNIFICATION
NUMERICAL APERTURE
TOTAL WORKING DISTANCE, mm
TYPE OF ABERRATION CORRECTION
1
2.5
0.04
30.0
PLANACHROMAT
2
5
0.10
25.0
PLANACHROMAT
3
10
0.25
3.8
ACHROMAT
4
20
0.40
0.58
ACHROMAT
5
40
0.65
0.64
ACHROMAT
6
50
1.00 OIL
0.32
ACHROMAT
7
63
0.85
0.55
ACHROMAT
8
63
1.15 WATER
0.40
ACHROMAT
9
63
1.25 OIL
0.28
ACHROMAT
10
100
1.20 WATER
0.32
ACHROMAT
11
100
1.25 OIL
0.30
ACHROMAT
Some optical diagrams of our standard range
of microscope objectives.New designs offer improved performance
at low cost.
FOCUS Inc.
1B, 5-th Upper street,
Saint-Petersbourgh 194292, Russia
Phone:
+7-812-7154960
Phone/Fax: +7-812-9328906
E-mail:
focus@focusinc.ru