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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