Goerz Lens Serial Numbers

• Goerz Lens Serial Numbers Doreen
• Goerz Lens Serial Numbers Lookup
• Goerz Berlin Lens Serial Numbers

C.P. Goerz

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. Are these actual f stops or a different system? If so, how do I convert? In 1895 Goerz founded a branch in New York that started its own production in 1902 and was to become the C. Goerz American Optical Co. In 1905 (see here for dating these serial numbers). This company continued to operate independently in the US until 1972. Until WWI many great companies cooperated with Goerz. 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. Dagor Lens Information. Notes and threads on Dagor lenses. On Goerz Serial numbers and dates Goerz Amer. Serial #'s from Eddie Bolsetzian. That lens production would only be carried out by Zeiss, thus the coffin-lid was finely screwed down on their old adversary. During its time, Goerz had produced. Wether this number is a serial production run. Oddly Goerz continued to use the term 'Golden Dagor' in their literature for some years after this. I don't have a date for the introduction of the Golden Dagor. I have a 1956 U.S. Camera annual with a two page spread for Dowling's Fifth Avenue, a New York City photo store. It includes 'Now! Goerz Golden Dagor F:6.8.the lens without a peer!'

Berlin

Germany

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

Lens Type:

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

Serial Number:

Ross & Co.

London

England

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

Lens Type:

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

Serial Number:

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:

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:

With:

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

London

England

Series 1a. f4.6, 6 ⅛'

Lens Type:

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:

With:

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'. What is a key code for call of duty 4.

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.

Goerz Lens Serial Numbers Doreen

A.E. Staley & Co.

London

England

Series IV. f6.5, 4 ¾'

Lens Type:

Iris diaphragm to f44. Magnalium mount. League of legends server ip. For 3 ½' x 4 ¾'.

Serial Number:

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

Goerz Lens Serial Numbers Lookup

To add to my friend's Sean's comments in reference to the C.P Goerz Berlin lens, a good friend of this page provided me with some guidance in selecting lenses for 8x10. And while some may seriously disagree, here is what he wrote on this topic:

--------------------------------------------------------------------- 'The Dagors are still popular due to their combination of small size and large coverage. Although the collectible market has driven up the prices in general, and especially for the Gold Ring, Gold Dot, etc. varieties, they can still often be found at relative bargain prices compared to equivalent modern glass. In some cases, there just aren't any modern alternatives that don't weigh 5x as much. In general, I have had good luck with Am Optical Dagors with serial number higher than 770xxx and Zeiss made Dagors from the 1930s - 1940s. Many older Dagors can also be quite good (but the quality seems to vary more), and I would avoid anything labeled as a 'Berlin Dagor'. These were assembled by Burke & James after WWII, and the glass used in them was horribly full of impurities. They obtained all these inferior old elements after the war as part of the liquidation of the German Goerz company, shipped them across the ocean, mounted them in barrels and shutters and sold them as 'Berlin Dagors' to distinguish them from the Dagors being made in this country by Goerz Am Optical (A separate company that had split off from the German Goerz sometime in the WWI timeframe).

All Goerz Am Opt. Dagors after 770xxx are of the same design and glass types. You can occasionally find very high serial number Dagors that don't have the gold rim or gold dot. They are every bit as good, and usually priced hundreds of dollars less. I have a suspicion that some of these were manufactured under contract for the US Military in the 1950s and 1960s. I have a 4 3/8' WA Dagor from 1961 that was originally part of a military field photographers kit that has a serial number above 800xxx, and it has a simple black barrel, even though I have an older 6 1/2' WA Dagor (786xxx) with the shiny gold rim and used to have a beautiful 12' Gold Rim Dagor with serial number 790xxx). Guess the military preferred the non-descript black barrels to the shiny brass ones of the Golden Dagors.

Goerz Berlin Lens Serial Numbers

Good luck in your search for lenses for your 8x10. Other lenses to consider would be the Kodak Commercial and WF Ektars. They tend to be larger than the Dagors, and the Commercial Dagors have less coverage, but they are usually less expensive due to a lack of collector appeal. Also, in the longer focal lengths, the Red Dot Artars are great. Metode penelitian sugiyono pdf. They can be found occasionally in original Ilex shutters, but are more common in barrels (which can be re-mounted into Copal #3 shutters). I had a 16 1/2' Red Dot Artar that was my favorite lens when I used to shoot with an 8x10 Deardorff. Reasonably small, very sharp, and I just liked the focal length.' ------------------------------------------------------------------ I hope you and our other friends find this of interest.

-Henry T. Stanley
-- Henry Stanley (HTStanley@prodigy.net), June 23, 1999.