Ensign Folding Reflex

Model D

1913

Houghtons Ltd

London

England

Lens:

f5.8, 11" Cooke telephoto, iris diaphragm to f32. Serial no. 86658 (c. 1920).

Shutter:

Focal-plane, speeds 1/10 - 1/1000, B, T.

Construction:

Leather covered body.

Format:

3 ¼ " x 4 ¼" plates held in double dark-slides.

Focusing:

Helical to 7 yards.

Attributes:

Reflex viewing through taking lens. Full-size ground glass screen.
Mirror has to be set separately to the shutter.

Movements:

Cross front.

Serial Number:

5130 .

With:

2 double dark-slides. Focusing screen back. Lens hood. Lens cap. Neck strap. Case.

The Model D was sold into the 1920s. Three sizes were produced quarter-plate, 9 x 12 cm and later 2 ½" x 3 ½". The lens on this example is a telephoto by T.T.H., the flange is also marked T.T.H. Several standard lens of 5 ¼" focal length were offered including a Tessar.

The shutter patent, 15548/08, was also used by Thornton-Pickard.

References & Notes:

BP 15548/1908 (F. P. Whitehead, W. F. Giles). BP 28448/1908 (J. Frennet). BP 27461/1910 (G.F. Prout, H. Holmes, Houghtons Ltd). BP 6121/1913 (G.F. Prout, Houghtons Ltd). BJA 1914, p. 728. BJA 1915, p. 218c. BJA 1917, p. 162. BJA 1920, p. 164. Ensign Handbook, p. 48. Houghtons Cat. 1914, p. 231.

Company Details:

Houghton

Early Photography