More about part: Carl Zeiss Jena Jenalumar microscope Apochromat 50x/0,95 oo/0,17-A objective with M25 thread and correction collar | Jenamed and Jenaval compatible (ID: 99819)
Carl Zeiss Jena Jenalumar microscope Apochromat 50x/0,95 oo/0,17-A objective with M25 thread and correction collar | Jenamed and Jenaval compatible
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Description
Carl Zeiss Jena Jenalumar microscope Apochromat 50x/0,95 oo/0,17-A objective with M25 thread and correction collar | Jenamed and Jenaval compatibleApochromatic 50x microscope objective made by Carl Zeiss Jena.
Basic objective parameters:
- Manufacturer
- Carl Zeiss Jena
- Model
- Apochromat 50x/0,95 ∞/0,17-A
- Magnification
- 50x
- Numerical aperture N.A.
- 0.95
- Optical correction
- Apochromat
- Additionally
- cover glass thickness correction collar, range 0.12 - 0.22 mm
- Tube length
- infinity
- Thread
- M25
- Cover glass
- yes, required
- Immersion
- no (so-called dry objective)
Commonly used, cheap cover glasses are 0.17 mm thick mostly on paper. Even the standard for class #1.5 allows a range of 0.16-0.19 mm, and cheap Chinese cover glasses in practice come in anywhere from approx. 0.13 to 0.25 mm, often not matching the thickness stated on the box. Only #1.5H (high precision) cover glasses have a guaranteed thickness of 0.170 mm with a tolerance of +/- 0.005 mm. With high-aperture dry objectives such as this Apochromat 50x/0.95, variation in cover glass thickness noticeably reduces image contrast and resolution (spherical aberration). The correction collar fitted to this objective lets you adjust the optics to the combined thickness of the cover glass and the mounting medium layer beneath it, within a range of 0.12 mm to 0.22 mm. This compensates for most of the variation encountered in practice.
This objective fits, among others, the following microscopes:
- Carl Zeiss Jena Jenamed
- Carl Zeiss Jena Jenalab
- Carl Zeiss Jena Jenaval
- Carl Zeiss Jena Jenalumar
As for the Carl Zeiss Jena Jenamed microscope, this objective fits every variant:
- Carl Zeiss Jena Jenamed variant
- Carl Zeiss Jena Jenamed Fluorescence
- Carl Zeiss Jena Jenamed hematology
- Carl Zeiss Jena Jenamed cytology
- Carl Zeiss Jena Jenamed 2
Manufacturer
Carl Zeiss Jena - (VEB Carl Zeiss Jena DDR (former East Germany)) ➔ All parts
It comes from
This part was removed from the following microscope:
Why do you need this?
This microscope part is typically used for the following purposes:
- if your microscope is missing an objective of this magnification
- if you need an objective with cover glass thickness correction
- if you have an achromatic objective and want to upgrade your microscope by replacing it with this one, which offers better color correction - useful e.g. in fluorescence microscopy
- if you already have such an objective, but it is damaged or of very poor quality
Compatibility
This microscope part is compatible with the following microscope models: