Triple Extension Field Camera

c.1904

Lens:

f8, 8 ½" rapid rectilinear, iris diaphragm with external pointer.

Shutter:

Roller-blind speeded 1/15 - 1/90, T, B. Pneumatic and string release.

Construction:

Polished mahogany with brass fittings, finger joints. Diagonal cornered leather bellows.

Format:

6 ½" x4 ¾" plates held in double dark-slides.

Focusing:

Bellows to 36".

Attributes:

Rack and pinion adjustment to outer rack which moves the rear standard. Rack and pinion movement to inner frame which moves the front standard. Removable lens panel. Level. Turntable in base.

Movements:

Rising front, tilting front, tilting back.

At the turn of the century a number of triple extension field cameras were produced. This model was sold by various companies including - Butcher as the National, Service Co. and City, Sale & Exchange. It is simply made using very thin brass for the fittings. The front standard has elaborate movements with double rise and tilt movement. The shutter is notable for not being by Thornton-Pickard.

References & Notes:

BJA 1904, p. 216.; BJA 1905, pp. 195, 1341, 1490.

Early Photography