Gossen Sixtus exposure meter

Update: 06.10.2012

Gossen Sixtus exposure meter.

After the Photolux, Ombrux, Blendux and Cimbrux, the Sixtus is the next well known exposure meter from Gossen. and was first manufactured in 1939. It has a exposure time measurement range from 1/1000 sec to 4 min and a aperture range from f/ 1.4 ~ 45. The housing forms a kind of handle to hold the meter however there are types that lack this handle and have a leather case instead. The improvement of the Sixtus is the calculator scale on the front of the meter. With this calculator scale, there is no longer a need for the metal plates with tables to convert the exposure time to other settings than the meter was setup for. The Sixtus is, by Gossen, also called the "Super Ombrux" and the Cimbrux the 'bigger and older brother' of the Sixtus C

There are three different versions manufactured of the Sixtus exposure meter. The versions are assigned with a character:
  N for regular Photo equipment version,
  L for Leica version, there is a version where the L is replaced by the complete word 'Leica'.
  C for movie (cine) purposes.

I have seen one version where the L is replaced by the complete word 'Leica'.

There is no external identification of the different types except for the Leica version this one carries a little L on front of the meter. The difference between de N version and the C version can be recognized from the scale and the housing / leather case of the meter which carries a C on it. The Leica version has different time / aperture values i.e. f/ 1.5 ~ 50 and 1/1000 sec ~ 2 min.

The housing of the Sixtus slides over the meter itself. When you shift the meter out of the housing and you flip the meter when it is completely out of the housing, the housing forms a handle to hold the meter a bit like a handgun. Gossen calls this meter than an exposure gun!
Besides the variations in types, there are other variations like different scales, different housing, different glass in front of the sensor and a slight difference in size, difference in the front scale and also in color. I received a picture where the housing is the same as used for the Ombrux 2 but with the Sixtus scale. This variation in the housing can also be seen on the commercial pictures down on this page. (Thanks to Anssi Puisto who send me the info). There is also a difference in the hard shell cover, some have 'Original Gossen' imprinted and some are blank (no imprint). And finally there is the colored version thanks to Thomas Meyer for the nice picture of the Red Sixtus.

The front glass of what I called the 'old' Sixtus versions (ser. nr from 1 to 99.999) have a circular shaped glass in front of the sensor while the 'new' version has a honeycomb glass. I have seen Sixtus versions with a glossy metal color front scale and versions with a matt slightly colored front plate.

Some meters have a film speed scale with Scheiner on the left and DIN on the right while others have DIN on the left and Scheiner on the right. This counts for the regular version as well as for the Leica version. There is no relationship of the differences between the 'old' and the 'new' versions, I have seen these differences by both versions this also count for the Normal versions and the Leica versions as well.

Some meters have 3 little screws in the bottom part of the meter to hold the interior while other versions have 2 screws and little metal pin to prevent the meter from being opened.

Even the manuals have some differences mainly we see here "How the Sixtus is operated" but recently a came up to a manuals with the description "How the Sixtus is manupulated"


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