Cooke Anastigmat - Antique and Vintage Cameras

Cooke Anastigmat

Taylor, Taylor & Hobson Ltd

Leicester

England

Image of Cooke Anastigmat

Series V. f8, 11"

Lens Type:
Anastigmat.

Iris diaphragm to f64. Brass mount with stepping ring. For whole-plate.

Serial Number:
88950 .

With:
Flange and stepping ring marked T.T.H..

Designed by Harold Dennis Taylor. The Cooke triplet proved to be an influential design, it was made in several series by Taylor, Taylor & Hobson and was widely copied by other manufacturers. The original patent shows a lens consisting of two plano-convex elements each side of and equidistant from a bi-concave element.

The series V was intended for architectural, copying and reproduction work.

References & Notes:
BP 22607/1893. BP 15107/1895. BJA 1898, p. 508. BJA 1900, p. 848. YBP 1895, p. 122. Kingslake, p. 105. Neblette, Principles and Practice, p. 133.

Cooke Portrait Anastigmat

Taylor, Taylor & Hobson Ltd

Leicester

England

Series IIE. f4.5, 10 "

Lens Type:
Anastigmat.

Iris diaphragm to f16. Turning the lens barrel alters the lens separation and introduces softness to the image. Degree of softness scaled 1 - 5 and 'Sharp'. Brass mount with finger grip. For whole-plate.

Serial Number:
307818 .

The Portrait Anastigmat produced variable softness (spherical aberration) by altering the separation between the lenses. The finger grip to rotate the lens barrel was introduced in the early 1920s, the lens was advertised into the 1950s.

The series VI lenses had an aperture of f5.6, the lens had pulleys attached to it allowing the photographer to alter the degree of softness when behind the camera. The series IIa had an aperture f3.5. The IIc series were portrait lenses but without the variable soft focus feature.

References & Notes:
BJA 1906, p. 1137. BJA 1908, pp. 727, 1003. BJA 1909, p. 989. BJA 1912, p. 969. BJA 1914, p. 1011. BJA 1920, p. 567. BJA 1921, p. 557. BJA 1923, p. 690. BJA 1924, p. 658. BJA 1925, p. 665. BJA 1926, p. 647.


Company Details:

Taylor, Taylor & Hobson

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