ZEISS
Description
Primovert
14
415510-7244-001
12/2014
2.4
Objectives
The objectives are the optical heart of the microscope. The objectives may be labeled as follows:
LD Plan-ACHROMAT 40x/0.5 Ph 1
∞
/1.0
Where:
LD
Long working distance
40x
Objective magnification,
with a defined color ring on the
objective being assigned to each
magnification step (Carl Zeiss color code)
0.5
Numerical aperture
∞
Infinite mechanical tube length
1.0
Usable with cover glass thickness
D = 1.0 mm, similar data for other glass
cover thicknesses in millimeters
or
0
Usable without cover glass
−
Usable with cover glass thickness D = 0 or
0.17 mm
Other labels:
Ph
Phase contrast objective with green
inscription
The total visual magnification of the stand with tube / phototube is obtained by multiplying objective
magnification by eyepiece magnification, e.g., 40 x 10 = 400x.
Numerical aperture multiplied by 1000, e.g. 0.5 x 1000 = 500x, presents the maximum useful
magnification; there is no resolution for further details above that limit.
If glass cover slips are employed, objectives can also be used with other cover glass thicknesses.
Available objectives:
Objective
Magnification
NA
Description
Working
distance
(mm)
Order No.
Field of
view
(mm)
Plan-Achromat
4x
0.10
HF
12
415500-1600-001
20
Plan-Achromat
4x
0.10
Ph0
12
415500-1619-000
20
Plan-Achromat
10x
0.25
Ph1
4.4
415500-1605-001
20
LD Plan-Achromat
20x
0.30
Ph1
4.6
415500-1614-000
20
LD Plan-Achromat
40x
0.50
Ph1
2.8
415500-1617-000
20
LD Plan-Achromat
20x
0.30
Ph2
4.6
415500-1618-000
20
LD Plan-Achromat
40x
0.50
Ph2
2.8
415500-1616-000
20
Fig. 2
Objective (mounting position)
