Weston Master - Antique and Vintage Cameras

Weston Master I

S74/715

1948

Sangamo Weston Ltd

Enfield

England

Image of Weston Master I

Meter Type:
Photoelectric.

Calibration:
Film speed: 0.3 - 800 Weston. Shutter speed: 1/1200 - 90s. Aperture: f1.6 - f32.

Attributes:
Two light value scales: 0 - 1600 and 0 - 50. U, O, A, C index lines.

Identification:
White face.

Serial Number:
E34/4 .

Weston Master II

S141/735

1951

Sangamo Weston Ltd

Enfield

England

Meter Type:
Photoelectric.

Calibration:
Film speed: 0.3 - 800 Weston. Shutter speed: 1/1200 - 90s. Aperture: f1.1 - f32.

Attributes:
Two light value scales: 0 - 1600 and 0 - 50. U, O, A, C index lines.

Identification:
White face.

Serial Number:
B1651 .

With:
Instructions. Speed list. Invercone. Case. Box.

Weston Master III

S141.3

1957

Sangamo Weston Ltd

Enfield

England

Meter Type:
Photoelectric.

Calibration:
Film speed: 0.3 - 5m Weston. Shutter speed: 1/1200 - 90s. Aperture: f1.1 - f32. Exposure Value (EV): 2 - 18.

Attributes:
Two light value scales: 0 - 1600 and 0 - 50. U, O, A, C index lines.

Identification:
White face.

Serial Number:
N9391 .

With:
Strap. Sales brochure.

Weston Master IV

S461.4

1961

Sangamo Weston Ltd

Enfield

England

Image of Weston Master IV

Meter Type:
Photoelectric.

Calibration:
Film speed: 0.1 - 16000 ASA. Shutter speed: 1/1000 - 64s. Aperture: f1 - f32. Exposure Value (EVS): 1 - 18.

Attributes:
Two light value scales: 0 - 1600 and 0 - 25. U, O, A, C index lines.

Serial Number:
H7267 .

With:
Case.

Weston Master V

S461.5

c. 1963

Sangamo Weston Ltd

Enfield

England

Image of Weston Master V

Meter Type:
Photoelectric.

Calibration:
Film speed: 1 - 16000 ASA, 1 - 43 DIN. Shutter speed: 1/1200 - 90s. Aperture: f1 - f32. Exposure Value (EVS): 1 - 18.

Attributes:
Two light value scales: 0 - 10 and 10 - 16. U, O, A, C index lines.

Serial Number:
125 8K .

With:
Case. Instructions. Speed Ratings. Sales leaflet.

Euromaster

Sangamo Weston Ltd

Enfield

England

Meter Type:
Photoelectric.

Calibration:
Film speed: 3 - 12000 ASA, 6 - 42 DIN. Shutter speed: 1/4000 - 15m. Aperture: f0.5 - f22. Exposure Value (EV): 0 - 22.

Attributes:
Two light value scales: 0 - 10 and 0 - 16. U, O, A, C index lines. Indices for +2 stops, +3 stops, -2 stops.

Identification:
Black face.

Serial Number:
3190L .

With:
Invercone in case. Instructions. Case. Box.

Weston Master II

141/75

Weston Electrical Instrument Corporation

Newark

USA

Meter Type:
Photoelectric.

Calibration:
Film speed: 0.1 - 1600 Weston. Shutter speed: 1/1200 - 100s. Aperture: f1.5 - f32.

Attributes:
U, O, A, C index lines.

Identification:
Black face.

With:
Case.

Cine meter I

720

Weston Electrical Instrument Corporation

Newark

USA

Meter Type:
Photoelectric.

Calibration:
Film speed: 0.1 - 800 Weston. Frames per second: 6 - 96. Aperture: f1 - f22.

Attributes:
Two light value scales: 0 - 26 and 0 - 16. U, O, A, C index lines.

Identification:
Black face.

Serial Number:
656796 .

The Weston Master was based on the 650 Universal meter but is thinner and more streamlined than the earlier model. It appeared first in the USA in 1939, following the war (1947) production was started in Britain to avoid import difficulties. The Enfield models have white faces those made in the USA at the time have black. In 1951 Sangamo Weston introduced the model II which was already available from 1946 in the USA. An 'Invercone' became available for incident light measurement. The model III appeared in Britain in 1957. This had a dial that was easier to read and an Exposure Value (EV) scale. The Weston speed ratings were re-aligned to correspond to ASA. In 1961 the model IV appeared, this had a satin chrome finish rather than the black paint of the earlier models. A lock for the needle was added and the scale was made clearer by omitting some values.

In use the film speed is set in a window on the centre dial. The reading is taken, an index is set against the value of the reading on the outer dial of the calculator. The shutter speed and aperture pairs can then be read. There are index lines for: normal, U - shadow readings, O - highlight readings, A - half exposure, C - double exposure. The Euromaster also had indices for two stops extra exposure, three stops extra and two stops less. The dials of early models are very full and difficult to read.

Prices:

  • Model I 9.15.0
  • Model II 11.5.0
  • Model III 10.18.3

References & Notes:
BP 531996/1941. BJA 1941, p. 359. BJA 1948, pp. 165, 443. BJA 1952, pp. 183, 501. BJA 1958, pp. 221, 517. BJA 1963, p. 17. Sangamo, A History of Fifty Years.

Further Information:
http://weston.ftldesign.com [accessed 2016]/

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