Transposing Frames, Printers - Antique and Vintage Cameras

Transposing Frames and Printers

A negative taken with a two-lens stereo camera will have its two images transposed at the taking stage. To be viewed correctly the image from the right-hand lens has to be on the right of the print or transparency. A transposing frame allows each image to be printed separately in the correct position.

Automatic Inverseur

J. Richard

Paris

France

Image of Automatic Inverseur

Printer for transposing stereoscopic negatives, for 45 x 107 mm plates.

The upper part of the printer holds the negative and positive plate. The lower part contains a clock mechanism to time the exposures, the hand is visible from the front of the instrument shielded by a yellow glass screen. At the rear of the lower part is an electric bulb. Between the upper and lower parts is a small yellow filter that hinges down during an exposure.

A flap at the front of the printer opens to load the plates, the central aperture, through which the exposure is made, is shielded by the yellow filter. The negative is positioned to the right of the chamber and the positive to the left.

After switching on the lamp the knob at the lower left of the printer is pulled out, this starts the clock mechanism but at present the hand is disengaged. To make an exposure a knob on the right of the printer is turned, this lowers the yellow filter allowing light to reach the plates and engages the clock hand. After the exposure the knob on the right is turned back, this raises the yellow filter and disengages the clock hand which returns to zero by means of a light spring. To make the second exposure the knob on the top left of the printer is pulled out, this moves the negative to the left, and a knob on the right is pulled, this moves the positive to the right.

The clock hand is connected to the mechanism by a simple clutch, turning the knob that lowers the yellow filter moves a rod, to which the hand is connected, backwards so that it engages with the clock. When the knob on the lower left is pushed in a leaf spring rests on a wheel in the clock and prevents movement.

Serial Number:
135 .

Notes:
Address: 10 Rue Halevy. 7 Rue Meyerbear. 25 Rue Melingue.

Stereolette

c. 1909

W. Butcher & Sons Ltd

London

England

Image of Stereolette

45 x 107 mm plates.

This was sold as an accessory for the Stereolette camera - a metal folding plate camera. It was advertised as the Primus Transparency Printing Frame, also made for 6 " x 3 " plates (though not called the Stereolette).

Construction:
Mahogany.

References & Notes:
BJA 1910, p. 132. Photo Fashions, p. 185.

Transposing Frames

1) For 6 x 13 cm plates. Removable pressure plate.
2) 3 " x 6 " plates, made of walnut.
3) 3 " x 5 " plates, made of mahogany, removable pressure plate. Similar models made by Chadwick, (PA 1891, p. 552).

Stereo Hawkeye Self-Transposing Printing Frame

Blair Camera Co.

Rochester

USA

Image of Stereo Hawkeye Self-Transposing Printing Frame

6 " x 3 ". Later sold as the Stereo Kodak Printing Frame.

References & Notes:
Westminster Cat. c. 1930, p. 71.


Company Details:

Butcher & Son

Darkroom Equipment

Darkroom Lamps

Granitine

Developing

Developing - Plate Tanks

Developing - Roll-Film Tanks

Fixing, Washing & Measures

Watkins Calculator

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Retouching Equipment

Print Meters

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Enlargers - Box Form

Enlargers

Contact Printers

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Printing and Masking Frames

Transposing Frames, Printers

Colouring

Print Trimming

Print Mounting

Thermometers

Miscellaneous