Precision Replica of the Daguerre-Giroux Camera from 1839

An outstanding replica, assumed to be Dr. Ing. Manfried Tschierschke, Potsdam, who made in 1981 a Daguerre-Giroux camera replica for the Film Museum Potsdam and in 1989 for the Pentacon Photo Museum Dresden. What is particularly outstanding about this replica is that the lenses are as close to the original as possible. It is a (conveniently removable) landscape achromatic lens 14/34 cm. The image sharpness from center to edge is sufficiently uniform on the focusing screen, with barely noticeable field curvature; further stopping down was not possible at that time. Despite the aperture of 14, the brightness of the focusing screen is sufficient for viewing even indoors, especially since the pivoting mirror is actually considered pleasant and quite practical even for veteran large-format users. At maximum extension and with the lens pushed out of its mount as far as is reasonable, the close focus range is approx. 1.27 m from an object to the aperture. From images in publications, the Daguerre-Giroux camera is familiar as an "old camera", but here, in this scientific replica, the camera looks as it did in its early years, still undarkened by the sun. This camera has that certain sense of youthful freshness – and may it and photography, invented in 1839 and striving for the truth of the image, be preserved for a long time to come. One of the most important replicas for any photography museum.

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)