Lens:

f5.5, 4 ¾" Ross Combinable. Combinable lens of two f11, 8" components. Iris diaphragm to f45 combined and f64 back component. Serial no. 137173 137174 (c. 1936).

Shutter:

N&S Perfect, three-blade diaphragm type, spring powered, pneumatic regulation, speeds 1/2 - 1/100, T setting by short pressure when set to 1/2.

Construction:

Duralumin. Black leather bellows, brown focusing hood.

Format:

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

Focusing:

Bellows to 19" with combined lens, c. 7' with back component only. Focusing scales to 1 yard with combined lens, 3 yards with back lens. Double extension.

Attributes:

Reflecting view-finder, parallax markings on view-finder. Spirit level. Revolving back. Depth-of-field scale for combined lens. Removable hood on focusing screen. Rising front flap on body for wide-angle work.

Movements:

Rising front, tilting front.

Serial Number:

140 .

Notes:

In use for long focus work the front element is removed.
Address on camera: 3 Whitehall, London, S.W.1 (1931 -).

With:

• f6.5, 82 mm T.T.H. Series VIIB Wide Angle Anastigmat, iris diaphragm to f45. Lens panel. Serial no. 270754.
• Hooded focusing screen.
• 1 block-form double dark-slide, mahogany.
• Sinclair collapsible lens hood.
• Case by Sinclair.