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Gossen Ombrux 2 exposure meter.
The Ombrux 2 is the successor of the Ombrux,
the first exposure meter made by Paul Gossen. As in the user manual
stated, Three factors are important to get a good picture. The
sensitivity of the photographic material used, the exposure time and the
aperture size. After pressing the red button to measure the light
reflected from the subject, the meter shows the value of light measured.
Turn the dial so the desired exposure time is opposite to the film
sensitivity. After this you can read the correct aperture value from the
inner part of the dial.
During my search for exposure meters I encountered two different types
of Ombrux 2 meters. One type were the housing looks exactly as the
Sixtus and the other type the known Ombrux 2. First I thought maybe the
scale was from an Ombrux 2 but looking at the case, this was actually an
Ombrux 2 as was written on the case and also the size was correct to fit
the meter while the case for the Ombrux 2 was much bigger and could not
hold the smaller type. So in mine opinion there must have been 2
versions of the Ombrux 2.
On the picture of the folder of the Ombrux 2 the smaller version can be
seen. The smaller version can be recognized by the distance from the red
button to the lower right corner of the meter. This distance is larger
than the distance from the larger meter. The question is now what type
is the earlier one. Taking in consideration the housing of the smaller
one is exactly as the later Sixtus am believing the smaller one is also
the latest one. Also the accompanying paper is dated August 1939 and
this is very close to the date of the introduction of the Sixtus.
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