Miethe Archive Three-Color Negatives and Three-Color Projector

1) The negative archive was stored at the Technical University in Berlin. It is unclear which negatives were destroyed during the war, and during the postwar era of the 1960s, when the archive was considered obsolete. For the remaining archive of approx. 800 negatives, it was the beginning of a second life as it increasingly underwent scholarly research in students' exams and theses. This was also accompanied by the study of Miethe's numerous publications and thus his significance as a color pioneer. Along with the three-color projector, 37 original three-color negatives and three original slides measuring 89.4 x 238.5 mm are available. The selection was based on Miethe's following areas of interest: Berlin, flowers, a lady who is always shown with a parasol, flora, glaciers, children, farm work, landscapes, porcelain painters (his first photographs, Miethe Archive No. 36), cities, animals, and forests. These themes are present in the 40 originals, and all are in technically correct condition. Nine of the negatives still bear the original Miethe Archive number. Now, the possibility of a third life for the negatives arises: Firstly, for all exhibitions of color photography; secondly, if we look at all the color-stable pictures printed by the Weller publishing house from 1906 onwards, and assuming that not all possibilities were exhausted in printing, Miethe negatives come very close to the ideal thanks to their form of sensitisation. After more than 100 years, the modern age of digital technology may feel challenged to make up for any missing subtleties in terms of color fidelity without exaggeration or physiological effects. – And: 2) The three-color projector for slides from Miethe three-color negatives 9 x 24 cm (length/width/height 67 x 54 x 38 cm) was built c. 1980–90 in all-metal by a technical college workshop based on the Goerz three-color projector. It contains individually controllable lamps (functioning), three heat filters, three double condensers, two fans (the motor runs, the transmission belts need replacing), and a mount for the original Goerz three-color slide holder (one of each of the three versions is included). Projection lenses: Isco-Göttingen Projar 6/350 mm no. 352242 for the middle green channel, the lenses no. 371754 (blue channel) and no. 371745 (red channel) are each adjustable in the x and y axes (the same regulation used by the famous Goerz device).

布雷克拍品等级是为了方便竞买人判断拍卖品的成色而设置的。布雷克等级用1到6级来标注外观和功能的成色，(从非常好到非常差)。 在目录图册里用括号里的2个数字来表示，前一个数字表示外观成色的级别，后一个数字表示功能成色的级别。如(3/2)表示外观成色是3(满意的)，功能成色2(好)。 成色 定义参照下列标准： 1 - 非常好 (未使用过，没有使用痕迹) 2 - 好 (新，极少的使用痕迹) 3 - 满意的 (普通的使用痕迹) 4 - 及格的 (明显的使用痕迹，某个非主要部件是后配的) 5 - 有缺陷的 (极明显的使用痕迹, 某个主要部件是后配的，功能上有缺陷，需要修理) 6 - 非常差 (严重破损, 缺少重要部件)