Zeiss Negative meniscus lens Ø54mm FL -105mm MultiCoated HR optics #724-21/B

Description

Zeiss negative meniscus CXCV lens Ø54mm FL -105mm MultiCoated HR optics
(Projector image extension)
These authentic and original optical parts come directly from a surplus (close-down business in Germany).
Great for DIY and research projects.
Purpose:
Carl Zeiss manufacturing process (several sources involved, including Schneider).
Diameter Ø:
54
mm
Focal Length:
-105.26
mm
Diopters:
-9.5
Thickness:
16mm
Radios:
R1=133.5mm R2=863.94
Coating:
yes
Optical standard:
unknown (most probably
BK-7 substrat).
Brand:
Zeiss.
Class B:
nicks in edge (mildly repaired with black matte paint). Probably not very important issue... please, see pics for details.
Sent in anti-acid organic paper which avoids harm to optics in the long term.