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OBJECT TYPE: 3 5/8 IN./WITH SHUTTER
DATE: 1950
ARTIFACT NUMBER: 1997.0343.001

MANUFACTURER: Goerz, C.P. Am. Opt. Co.
MODEL: W.A. DAGOR F:8
LOCATION: United States of America

More Information

General Information

Serial #: 789790
Part Number: 1
Total Parts: 1
AKA: N/A
Patents: N/A
General Description: GLASS OPTICS; METAL & SYNTHETIC FITTINGS; METAL LENS BOARD.

Dimensions

Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.

Length: 10.1 cm
Width: 10.1 cm
Height: 3.8 cm
Thickness: N/A
Weight: N/A
Diameter: N/A
Volume: N/A

Lexicon

Group: Photography
Category: Still camera parts
Sub-Category: N/A

Manufacturer

AKA: Goerz
Country: United States of America
State/Province: Unknown
City: Unknown

Context

Country: Canada
State/Province: Ontario
Period: THIS LENS PROBABLY USED C. 1950S +. NOT USED AFTER 1992.
Canada: PART OF A LARGE COLLECTION OF PHOTOGRAPHIC EQUIPMENT USED BY YOUSUF KARSH, CANADA'S INTERNATIONALLY HONOURED PORTRAIT PHOTOGRAPHER. FROM 1932 TO 1992, MR. KARSH OPERATED FROM HIS PRINCIPLESTUDIO IN OTTAWA, PHOTOGRAPHING HEADS OF STATE, RELIGIOUS LEADERS, AND THOSE PROMINANT IN BUSINESS, THE ARTS AND ENTERTAINMENT. HIS PHOTOGRAPHIC PRINTS & NEGATIVES, AND PERSONAL PAPERS ARE IN THE NATIONAL ARCHIVES OF CANADA.
Function: USED TO FORM IMAGES ON PHOTOGRAPHIC FILM BY FOCUSING RAYS OF LIGHT PASSING THROUGH IT.
Technical: BELIEVED TO BE THE ORIGINAL LENS FOR KARSH'S SPEED GRAPHIC CAMERA (970320). DAGOR LENSES WERE ORIGINALLY MADE BY C.P. GOERZ IN GERMANY: IN 1926 THE COMPANY WAS ABSORBED INTO ZEISS-IKON, BUT THE U.S. DIV. CONTINUED AS AN INDEPENDANT CO.. C.P. GOERZ AMERICAN OPTICAL CO. BEGAN MARKETING "GOLDEN DAGOR" LENSES IN EARLY 1950S. THESE LENSES WERE COATED. THEY ARE PROBABLY THE SAME AS THE "GOLD BAND" DAGOR (ZEISS), IN WHICH THE RIM OF THE FRONT ELEMENT IS GOLD COLOURED. "GOLD DOT" DAGOR LENSES WERE MADE AFTER THE ACQUISITION OF GOERZ BY SCHNEIDER. DAGOR LENSES WERE NOTED FOR THEIR WIDE FIELD OF VISION RATHER THAN FOR SHARPNESS. THEY ALSO EXHIBIT LARGE UNCORRECTED ZONAL SPHERICAL ABERRATION.
Area Notes: Unknown

Details

Markings: " C.P. GOERZ AM. OPT. CO. W.A. DAGOR 3 5/8 IN. F:8 No789790 " incised on lens housing. " 789790 " incised on rear of lens housing. " 29935 " appears in raised print on rear of lens board./ " SYNCHRO-COMPUR " & " 8713919 " incised on shutter housing; " GERMANY " stamped in yellow ink on shutter housing. f-stops, shutter speed, etc. also marked.
Missing: NONE.
Finish: BLACK & BRIGHT SILVER METAL LENS HOUSING; GOLD COLOURED RIM ON FRONT ELEMENT. GREY MOTTLED FINISH ON LENS BOARD FRONT; FLAT BLACK COLOURED BACK.
Decoration: N/A

CITE THIS OBJECT

If you choose to share our information about this collection object, please cite:

Goerz, C.P. Am. Opt. Co., Lens, after 1950, Artifact no. 1997.0343, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingenium.ca/en/id/1997.0343.001/

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