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SEIWA OPTICAL AMERICA INC 3042 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 Illumination Insertion Place φ 14 φ 29.5 R.M.S. Weight: 530g Parfocal Distance 45 Aperture Stop Iris Filter Insert Place Set Screw Set Screw 4 25 85 179 36 33 φ 28.2 4.5 RMS 38.1 45 W.D. = 6.9 DM. 35X φ 24 φ 22 4.5 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 44.55 45 W.D. = 0.45 DM. 50X φ 24 φ 22 4.5 RMS 44.56 45 W.D. = 0.44 DM. 100X DRY φ 24 φ 22 - 0.02 - 0.05

Finite DM Series - seiwaamerica.comW.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 Illumination Insertion Place φ 14

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Page 1: Finite DM Series - seiwaamerica.comW.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 Illumination Insertion Place φ 14

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

 

Page 2: Finite DM Series - seiwaamerica.comW.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 Illumination Insertion Place φ 14

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