This is description of this part:
A set of items rarely found on the used market:
- EPI dark field illumination condenser (mirror objective slide/insert) No. "10" with M19 thread (German: Hohlspiegelkondensor 9)
- Carl Zeiss Jena Planachromat 4x microscope objective
Model: Hohlspiegelkondensor 9
Color: Black
Internal thread: M19
Objective:
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Manufacturer: Carl Zeiss Jena
Model: Planachromat K 4x/0,05 oo/0 oo/2
Tube length: infinity
Magnification: 4x
Numerical aperture: 0.05
Cover glass: no OR 2 mm
Type: EPI (reflected light)
Thread: M19
Info: this microscope objective can work in oo/0 mode or after unscrewing the upper lens in oo/2 mode (e.g. for a Petri dish or through a microscope slide)
Mirror objective slides / inserts are used for EPI observations in reflected light in microscopes with a suitable EPI illuminator (Auflichtkondensor) installed, e.g. Carl Zeiss Jena NF or NU / NU-2 and with Vertival, Epival, Epignost, BK 70x50 microscopes - although they are also available in versions supporting other objectives).
What is this part needed for?
- if your set is missing a part with this number
- if your set is missing this lens
- if your mirror insert is damaged (the thread is damaged, the glass is broken, or the mirror is oxidized)
- if you need an objective lens for an inverted microscope (observations through a Petri dish or glass slide)
