Objectives - Zeiss Primostar 1 Instruction Manual

ZEISS

3.3 Objectives

The functional characteristics of an objective are indicated by the respective labeling, e. g.
A-Plan 10x/0,25
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2
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4
Info
Due to their short working distance, the following objectives have a resilient mount (sample
protection):
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4
Instruction Manual ZEISS Primostar 1 | en-US | Rev. 2 | 415501-7021-111
∞/-.
Magnification of the objective
The magnification factor specifies the magnification of the objective. Larger magnifica-
tions allow to resolve smaller features on the sample.
The objective's magnification factor is also expressed by the objective's color ring, see
ZEISS color code.
The objective magnification multiplied by the eyepiece magnification gives the overall
magnification.
Numerical aperture (NA)
The numerical aperture multiplied by 1000 represents the maximum useful magnification
- above that limit no additional resolution is provided.
Applicable cover glass thickness
- : The objective can be used without cover glass or with a cover glass with a thickness of
0.17 mm.
0: The objective can be used without cover glass.
0.17: The objective can be used with a cover glass with a thickness 0.17 mm.
Mechanical tube length
The objective can be used with tubes of any length.
40x
100x oil
3 Product and Functional Description | 3.3 Objectives
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