This is description of this part:
Upper lens for Leitz Wetzlar microscope condensers. It fits condensers with a swing-out / flip-out upper lens mechanism or those in which the upper lens is removable and has a 20 mm thread.
Element: upper lens of a microscope condenser
Manufacturer: Leitz Wetzlar (Leica)
Model: 0,90 As
Thread diameter: 20 mm
Immersion: no - this is a dry upper lens
What is this part needed for?
- if you have an incomplete microscope condenser in which the upper lens is missing
- if you have a condenser with a different upper lens and want to replace it with this specific type (for example you have an oil immersion upper lens and want to work "dry")
- if you already have such a lens but it is in very poor condition or damaged, for example scratched
- if the brass part into which this lens is screwed has been damaged, for example bent