As an addendum to the Contaflex
II here is the respective Compur Reflex leave shutter, sitting
in the center of the Tessar, hence the German name 'Zentralverschluss'
(Center Shutter). Anyway, the animation above and also the scheme below
actually show nicely how the thing works. The comparison between the
English and German names for the two main shutter types is quite
interesting: The leaf shutter is named ZENTRALVERSCHLUSS in German, whereas
the focal plane shutter is called SCHLITZVERSCHLUSS (Slit Shutter). In each
case a mishmash of function and position description.
A leaf shutter is an interesting fine mechanical structure and was invented
already in 1904 by Friedrich Deckel and
Christian Bruns. They later successfully launched more and more improved
versions. From Germany, the two companies Friedrich Deckel in
Munich (Compur) and Alfred Gauthier in
Calmbach (Prontor) dominated the market, both at the end part of the
Carl Zeiss Group. Later, from Japan
Copal and
Seikosha became on par competitors. Within my cameras having a leaf
shutter the Compur dominates (Contaflex
II , Agfa
Isolette II , Braun
Super Colorette , Balda Hapo-24
), then Seikosha ( Sears
SL-9 , 35-V Aires ) and
Copal (Yashica Lynx
5000 , Olympus PEN
EES 2 ), the other ( Rollei 35 ,
Seagull ) are
probably self-designed or built under license.
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