Goerz Lens Serial Numbers

Goerz Lens Serial Numbers Arkaos Grandvj 1 5 Keygen Software Mobidtv Pro Software Activation Windows Xp Oem Crack Devil May Cry 2 Pc Tpb I have a Goerz lens that I cannot identify. I got it off of a graphic arts camera. IThe lens is in barrel and is f/6.8. The lens reads Goerz Optical Co., Inc No. Find great deals on eBay for! Shop with confidence.

C.P. Goerz

Berlin

Germany

Model VIIb, 75 mm

Berlin
Lens Type:
Telephoto attachment. Variable separation.

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

Numbers

Goerz Berlin Lens Serial Numbers

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.

References & Notes:
BJA 1905, p. 378. BJA 1909, p. 315. N&G Cat 1908, p. 81. Goerz Cat, 1913, p. 41.

Carl Zeiss

Jena

Germany

45 mm

Lens Type:
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.

References & Notes:
BJA 1902, p. 58. BJA 1905, p. 55. BJA 1908, p. 79.

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).

References & Notes:
BJA 1909, pp. 722, 1119. BJA 1912, pp. 1077, 1086.
Ross Resolux 11cm/ f4 enlarging lens
image by John-Henry Collinson
(Image rights)

Part of the serial number sequence of lenses made by Ross. Note that the source warns that 'anomalies' exist, and suggests that some lenses, either made by Ross from designs of other companies (such as Zeiss and Goerz), or lenses made for Ross by subcontractors, may have their own serial numbers unrelated to these.[1]

Serial nº Year
100 1840
3,000 1850
6,500 1860
12,500 1870
20,000 1875
44,430 1880
47,31x 1885-1890
50,000 1890-1895
81,96x 1911
86,000 1918
95,000 1921
100,000 1924
105,000 1925
110,000 1927
115,000 1930
120,000 1931
125,000 1933
140,000 1939
200,000 1947
213,000 1946-7
250,000 1960



Notes

  1. From: Wilkinson, M, and Glanfield, C. 2001. A Lens Collector's Vade Mecum, CD-rom Version 3F. Edited by A. N. Wright. Cornwall, UK: David Matthews Associates. Chapter 11, Pages 87-88.

Goerz Lens Serial Numbers

Links

  • A selection of serial numbers for Ross cameras and lenses at Early Photography

Goerz Lens Serial Numbers Lookup

Retrieved from 'http://camera-wiki.org/index.php?title=Ross_serial_numbers&oldid=143555'