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EA-SERIES ACHROMATS AND PLAN
ACROMATS OBJECTIVES

| EA-Series Objectives
(Mechanical Tube Length: 160mm; Parfocal Distance: 33mm) |
| Type |
Magnification |
Field Flatness |
Numerical Aperture |
Working Distance (mm) |
| EAB Achromats |
Dry |
4X |
Plan |
0.12 |
23.40 |
| 10X |
Plan |
0.25 |
7.10 |
| 20X |
Flat Field |
0.40 |
1.70 |
| 40X* |
Flat Field |
0.65 |
0.41 |
| Oil Immersion |
50X* ** |
Flat Field |
1.00-0.70 |
0.22 |
| 100X |
Flat Field |
1.25 |
0.10 |
| EAP Achromats for Phase
Contrast |
Dry |
10X |
Flat Field |
0.30 |
7.24 |
| 20X |
Flat Field |
0.40 |
1.70 |
| 40X |
Flat Field |
0.65 |
0.55 |
| Oil Immersion |
100X* |
Flat Field |
1.25 |
0.10 |
| EAF Achromats for
Epi-Fluorescence |
Dry |
10X |
Flat Field |
0.40 |
3.08 |
| 20X |
Flat Field |
0.40 |
1.70 |
| Water Immersion |
30X** |
Flat Field |
0.90 |
1.16 |
| Oil Immersion |
90X* |
Flat Field |
1.25 |
0.10 |
*Spring-loaded, **With Iris diaphragm
Application:
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