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SEIWA OPTICAL AMERICA INC3042 Scott Blvd
Santa Clara, CA 95054
Tel: +408 - 844 - 8008: +408 - 844 - 8944
http://www.seiwaamerica.com
Series of Finite objective lens with 210mm mechanical tube. Comes with optical magnifications of 5X, 10X, 20X, 35X, 40X, 50X, 100X.
Note: Objective lens are optional
Coaxial Tube Lens
Finite DM Series
Finite DM Series
Specifications
DM. 5X DM. 10X DM. 20X
MS - 210: F20 - W Frosted Filter
DM. 35X
5X
18mm
37.9mm
0.10
3.4µm
27.5µm
52g
10x
7.5mm
22.17mm
0.25
1.3µm
4.4µm
85g
20X
2.2mm
11.72mm
0.4
0.8µm
1.7µm
88g
35X
6.9mm
6.06mm
0.45
0.7µm
1.35µm
85G
DM. 40X
40X
0.6mm
5.78mm
0.65
0.5µm
0.7µm
95g
DM. 50X
50X
0.45mm
4.66mm
0.68
0.5µm
0.6µm
96g
DM. Plan 100X
100X
0.44mm
2.17mm
0.9
0.4µm
0.3µm
99g
Magnification
Objective Lens Model
Working Distance
Focal Length (f)
Resolution
N.A.
Focal Depth (±D.F.)
Accessories
Weight
4.5 RMS
27
45
W.D. = 18
DM. 5X
φ 24
φ 22
( 157.7 )
( 120° )
C - Mount
( 3 - Set Screw )
30.7
MS - 210
φ 35
φ 29.5
φ 40
IlluminationInsertion Placeφ 14
φ 29.5
R.M.S.
Weight: 530gParf
ocal
Dis
tanc
e 45
Aperture StopIris
Filter Insert Place Set ScrewSet Screw
425
8517
936
33
φ 2
8.2
4.5 RMS
38.1
45
W.D. = 6.9
DM. 35X
φ 24
φ 224.
5 RMS
37.5
45
W.D. = 7.5
DM. 10X
φ 24
φ 22
4.5 RMS
42.8
45
W.D. = 2.2
DM. 20X
φ 24
φ 22
4.5 RMS
44.4
45
W.D. = 0.6
DM. 40X
φ 24
φ 22
4.5 RMS
44.5
5
45
W.D. = 0.45
DM. 50X
φ 24
φ 22
4.5 RMS
44.5
6
45
W.D. = 0.44
DM. 100X DRY
φ 24
φ 22
- 0.02- 0.05
SEIWA OPTICAL AMERICA INC3042 Scott Blvd
Santa Clara, CA 95054
Tel: +408 - 844 - 8008: +408 - 844 - 8944
http://www.seiwaamerica.com
Series of Finite objective lens with 240mm mechanical tube. The working distance is longer than the DM series.
Note: Objective lens are optional
Coaxial Tube Lens
Finite LM Series
Finite LM Series
Specifications
PLM - 3 LM - 5 LM - 10
MS - 240: F20 - W Frosted Filter
LM - 20
3X
12.5mm
78.07mm
0.07
4.8µm
56.2µm
88g
5x
21mm
53.88mm
0.10
3.4µm
27.5µm
43g
10X
12.3mm
22.5mm
0.22
1.5µm
5.6µm
73g
20X
12.2mm
11.45mm
0.30
1.1µm
3.0µm
76G
LM - 40
40X
6.8mm
6.06mm
0.45
0.7µm
1.4µm
82g
LM - PLAN 10 x DR0
100X
3.4mm
2.33mm
0.80
0.4µm
0.4µm
95g
Magnification
Objective Lens Model
Working Distance
Focal Length (f)
Resolution
N.A.
Focal Depth (±D.F.)
Accessories
Weight
4.5 RMS
32.7
45.2
W.D. = 12.5
PLM - 3
φ 25
φ 22
4.5 RMS
32.7
45
W.D. = 12.3
φ 25
φ 21.7
4.5 RMS
24
45W.D. = 21
LM - 5 LM - 10
φ 25
φ 21.7
4.5 RMS
32.8
45
W.D. = 12.2
φ 25
φ 21.7
RMS
41.7
45.1
W.D. = 3.4
φ 27
φ 26
4.5 RMS
38.0
45
W.D. = 6.8
φ 25
φ 21.7
( 157.7 )
( 120° )
C - Mount
( 3 - Set Screw )
30.7
MS - 240
φ 35
φ 29.5
φ 40
IlluminationInsertion Placeφ 14
φ 29.5
φ 23.8
R.M.S.
Weight: 550g
Parf
ocal
Dis
tanc
e 45
Aperture StopIris
Filter Insert Place Set ScrewSet Screw
425
100
209
3633
15
φ 2
8.8
- 0.02- 0.05
PLM - 20 LM - 40 LM - Plan - 100XDry