Lens

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Ingenium, 2001.0396.001
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OBJECT TYPE
AERIAL/IRIS DIAPHRAGM
DATE
1940–1955
ARTIFACT NUMBER
2001.0396.001
MANUFACTURER
Dallmeyer, J.H.
MODEL
F/2.9
LOCATION
London, England

More Information


General Information

Serial #
248990
Part Number
1
Total Parts
2
AKA
N/A
Patents
N/A
General Description
.1 GLASS OPTICS; METAL CASING; MOUNTED ON WODEN LENSBOARD..2 METAL LENS CAP HAS VELVET LINING.

Dimensions

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

Length
10.0 cm
Width
10.0 cm
Height
8.0 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
Dallmeyer
Country
England
State/Province
Unknown
City
London

Context

Country
Europe
State/Province
Unknown
Period
THIS TYPE OF LENS PRESUMABLY USED LATE 1940S- EARLY 1950S, AND POSSIBLY LATER.
Canada
PART OF A.M. HARDY COLLECTION OF PHOTOGRAPHIC EQ.. ARCHIBALD HARDY OPERATED A PHOTOGRAPHIC STUDIO ON SPARKS ST., OTTAWA IN THE 1930S. FOLLOWING WAR SERVICE, HE EST'D A STUDIO IN VANKLEEK HILL, ONT WHERE HE WORKED AS A HIGH SCHOOL TEACHER. HE SPECIALIZED IN WEDDING & PORTRAIT PHOTOGRAPHY. MR. HARDY CLOSED HIS STUDIO IN 1952
Function
TO BEND LIGHT RAYS TO CREATE IMAGE WHICH IS IMPRINTED ON FILM IN CAMERA.
Technical
Unknown
Area Notes
Unknown

Details

Markings
.1 "F= 8" F/2.9 248990" incised on lens housing. "[air ministry crown logo]/ A.M./ 14A/780" incised on lens casing. "J.H.D./ 1" stamped in off-white ink, on lens casing. "TOP" handwritten in pencil in one corner of lens board back..2 "DALLMEYER/ LONDON" incised on lens cap.
Missing
NONE.
Finish
.1 FLAT BLACK FINISH ON ALL METAL & WOOD SURFACES. CLEAR GLASS OPTICS..2 FLAT BLACK FINISH ON LENS CAP EXTERIOR; BLACK VELVET LINING.
Decoration
N/A

CITE THIS OBJECT

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

Dallmeyer, J.H., Lens, circa 1940–1955, Artifact no. 2001.0396, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/2001.0396.001/

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