C.P. Goerz

1. Goerz Lens Serial Numbers Lookup
2. Goerz Lens Serial Numbers Online
3. Goerz Lens Serial Numbers 222

Hello, I am hoping someone can help me find an answer to this query. I found in a box of old stuff at a camera store I work at part time a C.P Goerz Berlin lens. It says Dagor 1:6.8 f=15cm. Serial # 438667 It has a Syncro Compur P shutter. It seems to be fully functional. There is no oiling on the aperture leaves and the shutter seems to be.

Berlin

1. I recently purchased a Goerz Series III, No 3 210 mm lens in barrell. The numbers that are engraved on the side of the barrel seem a little different from any that I have seen. They are: 4.6, 6, 12, 24, 48, 96, 192, 384.
2. Serial Number: 16411 (c. The Ross-Goerz lenses were made under license by Ross in. I recently acquired a lens that is labelled: 'GOERZ DAGOR F:6.8 FOCUS 9 1/2 IN.

Germany

Model VIIb, 75 mm

Lens Type:

Telephoto attachment. Variable separation.

Goerz Lens Serial Numbers Lookup

For 3 - 8x magnification. Rack and pinion adjustment.

Serial Number:

186905 .

This was made in two versions for either hand or bellows cameras. The tube and elements could be purchased separately. Advertisements in the 1905 BJA list the VIIb as taking a primary lens with a different flange diameter to the example shown here. The 3' negative lens is also not listed as for use with the VIIb tube. A 3' negative suited a prime lens of 6', 7' or 8 ¼' focal length covering a 4' x 5' plate at low magnification and 12' x 16' at high magnification.

Carl Zeiss

Jena

Germany

45 mm

Lens Type:

Goerz Lens Serial Numbers Online

Telephoto attachment. Fixed separation.

Helical focusing scaled to 6'. For quarter-plate.

Serial Number:

55260 .

The Zeiss Tele Objective consists of negative attachments, positive lenses and tubes which can be combined in various ways. The positive lens can be either a conventional prime lens such as a Tessar or Protar, or a specialist group called the Tele-Positve. Some tubes had iris diaphragms and shutters fitted. This example is a Tele-Negative attachment in a tube with removable focusing mount. The likely positive lens would have been a Tele-Positive of 135 mm focal length.

Voigtländer & Sohn

Braunschweig

Germany

97 mm

Lens Type:

Telephoto attachment. Fixed separation.

For 15 cm primary lens. 2.5x Magnification. For 10 x 15 cm.

Serial Number:

103244 .

With:

Box.

This is a conventional telephoto attachment consisting of a negative lens for mounting behind a normal objective. The attachment is for use with hand cameras such as the Voigtländer Alpin. It fits inside the bellows and screws to the rear of the lens panel. It was made in two sizes for quarter-plate (12 or 13.5 cm objectives) and 5 ½' x 3 ½' (15 cm objectives).

C.P. Goerz

Berlin

Germany

Series III No.4. f7.7, 240 mm

Lens Type:

Anastigmat. 6 elements.

Iris diaphragm marked in Goerz scale 6 - 384 (f8 - f64). Brass mount. For whole-plate.

Serial Number:

16411 (c. 1893) .

Ross & Co.

London

England

Series III No. 1. f7.7, 6'

Lens Type:

Anastigmat. 6 elements.

Waterhouse stops. Brass mount. For 5' x 4'

Serial Number:

1089 .

The Goerz Double Anastigmat was designed by von Höegh and introduced in 1892, from 1904 it was known as the Dagor. It proved very successful and was widely copied. The series III is a general purpose lens working at f6.8 in the shorter lengths and f7.7 in longer lengths. Available in sizes of 1 ⅝ - 35' (in the UK in 1900). The series IV was a modified design for copying and architectural use, working at f11 it was introduced in sizes up to 47'.

The Ross-Goerz lenses were made under license by Ross in London from 1893, they were replaced by Ross designed lenses in the late 1900s.

W. Watson & Sons

London

England

Series 1a. f4.6, 6 ⅛'

Lens Type:

Anastigmat. Reversed Dagor type. Dividing/combinable. 65° angle.

f4.6, 6 ⅛' combined; f8.5, 10' front and back groups. Iris diaphragm, two scales to f32 (combined lens) and f64. Sunk mount. For 5' x 6'.

Serial Number:

2375 .

With:

Flange.

Goerz Lens Serial Numbers 222

The Holostigmat, designed by Conrady, is a combinable lens sometimes sold in sets providing several focal lengths.

The original model, series I of 1901, had an aperture of f6.1 and focal length of 4 - 12' when introduced, later increased to 20'.

This was followed by the series II at f8 in lengths 4 - 26 ½'.

The Ia, c. 1906, was faster at f4.6 with lengths of 4 ⅜ - 14 ⅔'.

Around 1906 a wide-angle model was introduced with lengths of 3.9 - 9.2'.

Lastly a series III for process work was introduced in 1911. This had an aperture of f9.5, later f9, and lengths of 11 ¼ - 26 ½'.

The series II was discontinued in the late 1900s the other models with reduced focal length range were produced into the 1930s.

A.E. Staley & Co.

London

England

Series IV. f6.5, 4 ¾'

Lens Type:

Air spaced Dagor.

Iris diaphragm to f44. Magnalium mount. For 3 ½' x 4 ¾'.

Serial Number:

10273 .

Developed by E. Arbeit in Germany, introduced by Staley in November 1907.