General Information

Serial #

N/A

Part Number

1

Total Parts

1

AKA

N/A

Patents

N/A

General Description

PLASTIC BODY & PARTS/ METAL PARTS

Dimensions

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

Length

23.0 cm

Width

22.0 cm

Height

19.6 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Photography

Category

Still processing

Sub-Category

N/A

Manufacturer

AKA

Kodak

Country

United States of America

State/Province

New York

City

Rochester

Context

Country

Canada

State/Province

Ontario

Period

Unknown

Canada

EQUIPMENT USED AT DOMINION OBSERVATORY, CANADA'S PREDOMINANT ASTRONOMICAL OBSERVATORY WHICH OPERATED FROM 1905 TO 1970.

Function

DEVICE USED FOR MEASUREMENT OF EXTENT TO WHICH AN AREA OF PHOTOGRAPHIC IMAGE ABSORBS LIGHT, USED IN PHOTOGRAPHY FOR EXPOSURE CONTROL DURING PRINTING.

Technical

ACCORDING TO C. 1954 KODAK CATALOGUE, OPTICAL SYSTEM IS BASED ONNEW PRINCIPLE UTILIZING ROTATABLE PLASTIC DENSITY WEDGE. CROSS SECTION INCREASES IN THICKNESS AROUND CIRCLE, THUS FORMING 3-DIMENSIONAL WEDGE WHOSE DENSITY INCREMENTS ARE RESULT OF PHYSICAL THICKNESS OF PLASTIC. THIS ENSURES UNIFORMLY LINEAR DENSITY WEDGE. *

Area Notes

Unknown

Details

Markings

RAISED LETTERING READING "Kodak/ COLOR DENSITOMETER/ Model [SCRIPT] 1/ MADE IN ROCHESTER, N.Y., U.S.A. BY/ EASTMAN KODAK COMPANY/ T.M. REG. U.S. PAT. OFF. PATS. PENDING/ 115 VOLTS A.C. 30/60 CYCLES 8 WATTS"/ GOLD LABEL ON BACK READS "SOLE IMPORTER INTO CANADA/ CANADIAN/ KODAK CO. LIMITED/ TORONTO/ C.S.A. APPROVAL NO. 1759"/ LABEL ON SIDE READS "PROPERTY OF/ PROPRIETE DE/ A20033/ ENERGY, MINES & RESOURCES/ EARTH SCIENCE BRANCH/ ENERGIE, MINES ET RESSOURCES/ DIRECTION DE LA PHYSIQUE DU GLOBE"/ BLACK LETTERING & LINES ON DIAL

Missing

APPEARS COMPLETE

Finish

BLACK BODY & POWER CORD/ PLATED & METALLIC PARTS/ YELLOW DIAL

Decoration

RED & SILVER "KODAK" LOGO ON FRONT/ MOULDED PARALLEL LINES IN BODY