Duplex Ruby Reflex - Antique and Vintage Cameras

Duplex Ruby Reflex

1929 model

Thornton-Pickard Manufacturing Co.

Altrincham

England

Image of Duplex Ruby Reflex 1929 model

Lens:
f2.5, 5 ¼" T.T.H. Cooke Series X, iris diaphragm to f16. Serial no. 124972 .

Shutter:
Ruby. Focal-plane, speeds 1/10 - 1/1000, T. Self-capping. Shutter speed can be altered after tensioning.

Construction:
Leather covered wood body.

Format:
2 ½" x 3 ½" plates held in dark-slides.

Focusing:
Bellows to 20". Double extension.

Attributes:
Reflex viewing through taking lens. Stevens' patent ground glass focusing screen with combined condenser.
Setting the shutter brings down the mirror. Mirror locked in the up position when hood is closed.
Revolving back. Removable lens panel.

Movements:
Rising front.

Notes:
Ex Falchenberg collection.

With:
Focusing screen back.

This model of the Duplex is fitted with the fast f2.5 lens that was advertised in 1924. The 1929 model had a pocket in the lid of the focusing hood to hold the draw slide. A condenser with matt under surface is fitted in place of the normal focusing screen, this was the subject of a patent issued in 1932 to Frank Herbert Stevens, these screens were available at extra cost on T-P cameras from around 1934. They are an early adoption of a condenser combined with a focusing screen but their weight made the camera very heavy.

References & Notes:
Ruby shutter. BP 338390/1929. BP 6238/1912. BP 378270/1932 (Stevens condenser). Reflex & Press Cameras, 1938, p. 12. Reflex Cameras, 1927, p. 19. BJA 1925, p. 51.

Further Information:
Holliday, Thornton-Pickard Cameras & Equipment.

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