This is description of this part:
Phase contrast objective for inverted microscope.
Basic parameters:
Manufacturer: Zeiss
Designation: Ph1 F-LD 20/0,25 160/2
Manufacturer number: 46 06 06
Magnification: 20x
Correction: achromat
Numerical aperture: 0.25
Tube length: 160 mm
Focal length: 45 mm
Cover glass: yes, 2 mm (!)
Immersion: no
Thread: RMS
Ph1: phase contrast
LD: "long distance" meaning long working distance
Note: this is an objective for an inverted microscope, therefore it is corrected for observation through a 2.0 mm cover glass
It can be used with any inverted microscope from any manufacturer together with a compatible phase contrast condenser (or slider with phase rings). Of course the microscope must be compatible, i.e. support RMS objectives, TL=160 mm, FL=45 mm.
It can very likely also be used with other inverted Zeiss microscopes (e.g. Axiovert 25).
What is this part needed for?
- If you have a microscope without objectives and need to restock it using original parts
- If you have a microscope that doesn't have an objective lens with this magnification and want to restock it
- If you have such an objective lens, but it's of very poor quality or damaged
- If you're cautious and want to have a spare objective lens
