General Information

Serial #

N/A

Part Number

1

Total Parts

12

AKA

N/A

Patents

N/A

General Description

Cast iron/ Brass/ Tin/ Wood/ Glass/ Metal/ Velvet.

Dimensions

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

Length

145.0 cm

Width

93.0 cm

Height

42.0 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

Unknown

Country

Unknown

State/Province

Unknown

City

Unknown

Context

Country

Unknown

State/Province

Unknown

Period

Put in service June 28, 1933.

Canada

Elwood-type enlargers were an inexpensive design and were popular for use in small portrait studios.

Function

Used to project an enlarged image from a negative onto a sheet of photographic paper.

Technical

This enlarger, invented by Elwood C. Rogers of Indianapolis, Indiana, is designed to evenly illuminate the negative and projected field, which consequently avoids uneven heating of the negative and possible warping of film negatives or breaking of glass negatives. In order to achieve these objectives, Rogers used a frosted or coated light bulb as the light source, as well as a non-diffusing reflector (or polished reflective surface). Between the negative and reflector, Rogers inserted a sand blasted glass screen to correct inequalities in the light rays, which would otherwise pass through the negative. The rougher, more heavily blasted surface in the centre of the screen provided more diffusion of the strong, direct light rays from the bulb. According to the Focal Encyclopedia of Photography (1969), the resulting soft, diffused light produced by this type of enlarger tended to "subdue fine image detail, especially blemishes." This enlarger is also able to project both vertically and horizontally.

Area Notes

Unknown

Details

Markings

None.

Missing

From CA of 03/15/2002 by Matthew Bruce: No - appears complete (all catalogued parts accounted for, but not really "complete")

Finish

.1 Cast iron base, dark grey; 7 bolts on top; 4 holes in flange of each corner; counter sunk/ .3 w/Bulb; Painted black; Bottom tapers with wood guide strip & translucent glass over rectangular opening/ .4 board with strip on outside of 2 edges; Parallel guide lines inscribed inward/ .5 Wood frame holding another frame by metal clip;Glass inside smaller frame/ .6 Wood frame; Metal clips to hold insert/ .7 Wood frame holder; 2 metal clips; Clear double glass/ .8 F-45 series lens mounted on frame, all black; Adjusting ring inside/ .9 Shutter mounted on frame; Selecting speed wheel/ .10 frame w/metallic ring/ .11 Metal cone/ .12 Metal adjustable filter holder in velvet lined, leather case.

Decoration

N/A