Objectives - Zeiss Primo Star Mode D'emploi

Primo Star / Primo Star iLED
Infinity corrected Plan-ACHROMAT objectives with 4x, 10x, 40x and 100x/oil magnifications for
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brightfield, darkfield and phase contrast as well as oil immersion applications (100x/oil), 100x dry
objective
Binocular tube or binocular phototube (50 % vis, 50 % doc) with ergonomically favorable tube angle
−
of 30° with adjustable interpupillary distance and viewing height
Binocular tube 30°/20 with integrated HD IP CMOS camera and various interfaces and setting options
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10× adjustable eyepieces for field-of-view numbers 18 or 20, suitable for spectacle wearers
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2.4

Objectives

The objectives are the optical heart of the microscope. The objectives may be labeled as follows:
Plan-ACHROMAT 10x/0.25 ∞/-.
Where:
10× Objective magnification,
with a defined color ring on the
objective being assigned to each
magnification step (Carl Zeiss color code)
0.25 Numerical aperture
∞
Infinite mechanical tube length
−
Usable with cover glass thickness D = 0 or
0.17 mm
0 Usable without cover glass
or
0.17 Usable with cover glass thickness
D = 0.17 mm
Other labels:
Oil Oil immersion objective
Ph Phase contrast objective with green
inscription
Objective magnification multiplied by eyepiece magnification results in overall visual magnification, e.g.
10 x 10 = 100x.
Numerical aperture multiplied by 1000, e.g. 0.25 × 1000 = 250×, presents the maximum useful
magnification; there is no resolution for further details above that limit.
When immersion objectives are used, the air between the cover glass and the objective is replaced by a
liquid, which in most cases is immersion oil. The plastic oiler containing 5 ml of immersion oil is
particularly suitable for this purpose.
Due to their short working distance, objectives 20x, 20x/Ph 2, 40x, 40x/Ph 2, 100x, 100x dry objective,
100x/Ph 3 oil and 100x oil have a resilient mount (specimen protection).
11/2013
Description
Fig. 4
415500-7344-008
Objective
Carl Zeiss
15