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Stereoscopic Microscopes

420T-1105-10

Suggested Retail Price $ 1,135.00

 

 

Model 420T-1105-10

The convenience and versatility of viewing a large picture at 10x magnification, then zooming continuously all the way to close-up detail at 40x magnification. Upright, unreversed 3-dimensional image remains in focus throughout zoom range. Optional eyepieces and auxiliary objectives expand magnification range and working distances. Trinocular port accepts video or SLR adapters (included).

Universal stand features heavy construction and counterbalanced arm for maximum stability. With an adjustable mounting post, it provides extreme flexibility in positioning.

OPTICAL SYSTEM

  • Paired widefield 10x eyepieces are 45° inclined, with dual diopter adjustments, interpupillary adjustment from 55mm to 75mm. Accepts 23mm eyepiece reticle.
  • Viewing head rotates 360°.
  • Achromatic, color corrected lenses.
  • Continuous magnification from 10x thru 40x. See specification chart for full magnification range available with use of optional auxiliary lenses

FOCUSING

  • Large dual focusing knobs with slip clutch to prevent damage to mechanism.
  • Tension adjustment eliminates focus 'drift'.

ILLUMINATION

  • No built-in illumination is included with this model.

STAND

  • Professional, all-metal stand.
  • Heavy-duty post mount with locking support collar, permits up or down adjustment of viewing head to accommodate different sized objects.
  • Total stand height: 386mm (15.4 in.). Net weight: 18.1 kgs (40 lbs).
  • Base diameter: 200mm (8 in.). Base height: 55mm (2.2 in.)
  • Vertical post length: 331mm (13.2 in.). (O.D. 25mm)

OTHER DIMENSIONS & SPECIFICATIONS

  • Distance between main vertical post and center of field of view, when horizontal bar is adjusted to minimum or maximum extension: Minimum = 255mm, Maximum = 455mm
  • Distance from bottom edge of objective lens and work surface when horizontal bar is adjusted to minimum or maximum height:
  • With pivot arm up: Minimum = 170mm (6.8 in.), Maximum = 515mm (20.6 in.)
  • With pivot arm down: Minimum = 58mm (2.3 in.), Maximum = 260mm (10.4 in.)

PACKING

  • Head, focusing block and universal stand are in separate molded styrofoam containers with vinyl dustcover, eyeshields and instruction manual.
  • Master carton pack 1 each:
  • Head & focusing block: Ship wt. 4.1 kgs (9 lbs), Dimensions 400x425x275mm (16x17x11 in.)
  • Universal boom stand: Ship wt. 19.1 kgs (42 lbs), Dimensions 500x325x300mm(20x13x12 in.)

WARRANTY


420T SERIES OPTICAL SPECIFICATIONS

Eyepieces

Zoom
Objective
Position

Standard Objective
1X
(supplied)

Auxiliary Objective
0.5X
(Optional)

Auxiliary Objective
0.75X
(Optional)

Auxiliary Objective
1.5X
(Optional)

Working Distance  79mm

Working Distance - 137mm

Working Distance - 90mm

Working Distance -34mm

Total Magnification

Field Size

Total Magnification

Field Size

Total Magnification

Field Size

Total Magnification

Field Size

WF5X
Field No.22
(Optional)
(No Reticle Holder)
Interpupillary
Distance
59~83

1X

5X

22mm

2.5X

44mm

3.75X

29.3mm

7.5X

14.7mm

2X

10X

11mm

5X

22mm

7.5X

14.6mm

15X

7.3mm

3X

15X

7.3mm

7.5X

14.7mm

11.25X

9.8mm

22.5X

4.9mm

4x

20X

5.5mm

10X

11mm

15X

7.3mm

30X

3.7mm

WF10X
Field No. 20
(Supplied)
Accepts Reticle 23mm O.D.
Interpupillary Distance
54~78

1X

10X

20mm

5X

40mm

7.5X

26.7mm

15X

13.3mm

2X

20X

10mm

10X

20mm

15X

13.3mm

30X

6.7mm

3X

30X

6.7mm

15X

13.3mm

22.5X

8.9mm

45X

4.4mm

4x

40X

5mm

20X

10mm

30X

6.7mm

60X

3.3mm

WF15X
Field No. 13
(optional)
(No Reticle Holder)
Interpupillary Distance
50.5~74.5

1X

15X

13mm

7.5X

26mm

11.25X

17.3mm

22.5X

8.7mm

2X

30X

6.5mm

15X

13mm

22.5X

8.7mm

45X

4.3mm

3X

45X

4.3mm

22.5X

8.7mm

33.75X

5.8mm

67.5X

2.9mm

4x

60X

3.25mm

30X

6.5mm

45X

4.3mm

90X

2.2mm

WF20X
Field No. 10
(optional)
(No Reticle Holder)
Interpupillary Distance
52~76

1X

20X

10mm

10X

20mm

15X

13.3mm

30X

6.7mm

2X

40X

5mm

20X

10mm

30X

6.7mm

60X

3.3mm

3X

60X

3.3mm

30X

6.7mm

45X

4.4mm

90X

2.2mm

4x

80X

2.5mm

40X

5mm

60X

3.3mm

120X

1.7mm

 

Model

Specimen Height

Specimen Height

Specimen Height

Specimen Height

Minimum

Maximum

Minimum

Maximum

Minimum

Maximum

Minimum

Maximum

420-430PHF and 420T-430PHF

0.0mm

93mm

0.0mm

19mm

0.0mm

66mm

0.0mm

120mm

420-421AHH and 420T-421AHH

0.0mm

45mm

Inoperative

Inoperative

0.0mm

18mm

27mm

72mm

420-420AHF and 420T-420AHF

0.0mm

45mm

Inoperative

Inoperative

0.0mm

18mm

27mm

72mm

420-1105 and 420T-1105

0.0mm

437mm

0.0mm

363mm

0.0mm

410mm

00mm

464mm

420-1107 and 420T-1107

0.0mm

97mm

0.0mm

* 23mm

0.0mm

70mm

0.0mm

124mm

*When using optional 0.5x objective lens on 420-1107 and 420T-1107, maximum specimen height can be increase to 133mm by using optional M-1110 auxiliary post (350mm tall).


Available Parts & Accessories

498-420T-10 Trinocular stereo body only, 10x-40x, w/WF10x eyepieces, no focusing block  
499-000 Focusing block (fits 25mm mounting post)  
499-420AHF Stand w/focusing block, fixed arm, dual illum., top #800-422 12v 15 watt halogen bi-pin, bottom #800-138 5 watt fluorescent  
499-421AHH Stand w/focusing block, fixed arm, dual illum., top #800-422 12v 15 watt halogen bi-pin, bottom #800-170 12v 10 watt halogen  
499-430PHF Stand w/focusing block, post mount, dual illum., top #800-422 12v 15 watt halogen bi-pin, bottom #800-138 5 watt fluorescent  
499-1105 Universal boom stand, without focusing block, no illum.  
499-1107 Platform stand, without focusing block, 240mm x 280mm, no illum.  
600-400 Eyepiece shields, rubber, pair  
600-420T Adapter tube for third eyepiece (eyepiece not included)  
605-400 WF5x eyepieces, paired (Note: WF5x E.P. permit only 60mm-84mm I.P.D.)  
610-400 WF10x eyepieces, paired (accepts 23mm reticle)  
610-400EA WF10x eyepiece, each (accepts 23mm reticle)  
610-400R-05 WF10x eyepiece w/reticle, 5mm/100 div., each  
610-400R-10 WF10x eyepiece w/reticle, 10mm/100 div., each  
615-400 WF15x eyepieces, paired  
620-400 WF20x eyepieces, paired  
705-420 0.5x auxiliary objective lens; reduces magnification by 50%, increases working distance from 75mm to 131mm, doubles field diameter  
775-420 0.75x auxiliary objective lens; reduces magnification by 25%, increases working distance from 75mm to 91mm, increases field diameter by 25%  
715-420 1.5x auxiliary objective lens; increases magnification by 50%, reduces working distance from 75mm to 33mm, reduces field diameter by 35%  
800-138 Replacement bulb for bottom light, 110v 5 watt fluorescent  
800-170 Replacement bulb for bottom light, 12v 10 watt halogen, bi-pin  
800-420 Replacement bulb for top 6v 7 watt tungsten (for older models)  
800-421 Replacement bulb for top 12v 10 watt tungsten (for older models)  
800-422 Replacement bulb for top, 12v 15 watt halogen, bi-pin  
801-050 Replacement fuse for 220v version, 0.5 amp  
801-100 Replacement fuse for 110v version, 1.0 amp  
923-409 Blue filter, frosted, 35.6mm O.D.  
930-420 SLR photo adaptor with 2.0x photo lens (T-mount not included)  
930-421 Video "C" mount with 0.4x lens  
931-420 Ring light adapter ring, 54.5mm O.D., 18mm extension  
940-410 Frosted glass stage plate, 80mm  
941-410 Black/white plastic contrast plate, 80mm  
942 Darkfield kit (fits all National stereo models after 9/97)  
943 Specimen holder (tweezer) (fits in place of stage clip on all stereo models)  
952 Dustcover, large 18" tall x 16", heavy vinyl with stitched seams  
965-400-05 Eyepiece reticle, 5mm/100 Div., 23mm diameter  
965-400-10 Eyepiece reticle, 10mm/100 Div., 23mm diameter  
970-400 Stage clip for stereo microscope, 75mm from post, each  
975-001 Carrying case, anodized aluminum, fabric lining, accessory pockets, Velcro straps, keyed lock.Interior dimensions:14-7/8 x 7-3/4 x 10-1/2 inches.Note: Fits all 420T series except 420T-1105 & 420T-1107. No case available for these models.  
 
©2003 National Optical & Scientific Instruments, Inc. All rights reserved.