Folding Twin Lens - Antique and Vintage Cameras

Folding Twin Lens

1912

Thornton-Pickard Manufacturing Co. Ltd

Altrincham

England

Image of Folding Twin Lens

Lens:
f6.3, 5" Ross Homocentric, iris diaphragm to f32. Serial no. 68401 .

Viewing Lens: Thornton-Pickard Pantoplanat.

Shutter:
Koilos, speeds 1 - 1/300, B, T.

Construction:
Morocco leather covered mahogany body, Duralumin bed.

Format:
2 " x 3 " plates held in single metal slides.

Focusing:
Bellows to c. 3 feet.

Movements:
Rise and cross front.

With:
Five slides.

This is an unusual, though not unique, style of camera, the patent describes a horizontally orientated camera, the production model has the twin lenses arranged vertically with the folding bed moved to the shorter side of the body. Illustrations show the camera fitted with a focusing scale and with the focusing knob on the other side of the bed. Oddly a view-finder was not included. Several lenses could be fitted, the viewing lens was either a T-P Pantoplanat or an anastigmat similar to the taking lens.

The camera did not prove popular; a plate camera with separate viewing lens does not have many advantages. If the photographer wanted to use a focusing screen a tripod would normally be used and the time taken to change the plate holder was immaterial, if used for hand-held exposures the eye-level focusing screen was quite difficult to use. Twin lens models came into their own when fitted with a reflex mirror and roll-film was used.

References & Notes:
BP 40/1912. BJA 1913, pp. 214, 714. BJA 1914, p. 224.

Academy

Artist's Hand Camera

Kinegraphe Grand Angle

Ross Portable Divided

Special Twin Lens

Folding Twin Lens

Rolleiflex

Rolleiflex Standard

Rolleiflex Automat

Rolleiflex New Standard

Rolleiflex Automat II

Rolleicord

Rolleicord I

Rolleicord II

Rolleicord IA

Rolleicord V

Rolleicord Va

Rolleiflex 4 x 4

Ikoflex

Ikoflex III

Ikoflex Ic

Superb

Brilliant

Foth-flex

Pilot Reflex

Microflex

Mamiyaflex C33