Difference between revisions of "Weston"
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| − | |image_text= Weston Master II<br>with incident light ''invercone'' | + | |image_text= Weston Master II<br />with incident light ''invercone'' |
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'''Sangamo Weston''' was a company that made [[light meter]]s, among much other electrical equipment. It is particularly known for the '''Weston Master''' series of [[selenium meter]]s. | '''Sangamo Weston''' was a company that made [[light meter]]s, among much other electrical equipment. It is particularly known for the '''Weston Master''' series of [[selenium meter]]s. | ||
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* [http://www.google.com/patents?id=XEZJAAAAEBAJ&dq=edward+weston+exposure Patent 2046665 Exposure Meter] | * [http://www.google.com/patents?id=XEZJAAAAEBAJ&dq=edward+weston+exposure Patent 2046665 Exposure Meter] | ||
* [http://www.google.com/patents?id=flZeAAAAEBAJ&dq=edward+weston+exposure Patent 2203209 Exposure Meter] | * [http://www.google.com/patents?id=flZeAAAAEBAJ&dq=edward+weston+exposure Patent 2203209 Exposure Meter] | ||
| − | * [http://www.photo-manuals.com/tracking/39 Weston Light Meter Manuals : Photo-Manuals.com] by Ben Squire | + | * [http://www.photo-manuals.com/tracking/39 Weston Light Meter Manuals: Photo-Manuals.com] by Ben Squire |
* [http://www.jollinger.com/photo/meters/index.html Several articles about Weston meters] in James Ollinger's Exposure Meter Collection. | * [http://www.jollinger.com/photo/meters/index.html Several articles about Weston meters] in James Ollinger's Exposure Meter Collection. | ||
* [http://www.kpraslowicz.com/2009/04/27/weston-master-ii/ 1950 advertisement for the Weston Master II] | * [http://www.kpraslowicz.com/2009/04/27/weston-master-ii/ 1950 advertisement for the Weston Master II] | ||
[[Category: Meter makers]] | [[Category: Meter makers]] | ||
Revision as of 03:04, 29 March 2011
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| Weston Master II with incident light invercone |
Sangamo Weston was a company that made light meters, among much other electrical equipment. It is particularly known for the Weston Master series of selenium meters.
Weston was founded by chemist Edward Weston—no relation to the famous photographer—who held many patents for electrical inventions, from permanent magnets through cellulose manufacturing, dynamos, arc & filament lights and the magnetic-drag speedometer to electrical measurement instruments (and even US 895218 - a fruit box!)[1]. Weston's son, Edward Faraday Weston, applied for a U.S. patent on the first Weston Exposure meter, granted as No.2016469 in October 1935.[2] This was a cylindrical case with an electrical meter at one end, and an iris at the other; an adjustable scale around the meter opened and closed the iris, and showed the exposure. Sangamo was originally "Sangamo Electric Co.", in Springfield, Illinois, and set up a British subsidiary in 1921. Sangamo acquired the Weston Electrical Instrument Co. in 1936. [3] Since Weston were an early player in the light meter game - before film speeds were standardised, Weston had their own film speed scales.
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| Weston Master V |
At some point, Weston products were distributed by Ilford in the UK. The company was bought out by Schlumberger in 1976, but still exists making electrical timers.
The EuroMaster light meter is now being made by a company called Megatron.
Meters
- Weston Euromaster
- Weston 348 Ranger 9
- Weston 548 Pixie
- Weston 550 XM-2
- Weston 560 Master 6
- Weston 617
- Weston 627
- Weston 650 Senior
- Weston 705 Bolexmeter
- Weston 715 Master
- Weston 720 Master Cine
- Weston 735 Master II
- Weston 736 Master II Cine
- Weston 737 Master III
- Weston 745 Master IV
- Weston 748 Master V
- Weston 819 Cine
- Weston 850 Junior
- Weston 852 Cadet
- Weston 853 D/R Direct Reading
- Weston 854 D/R Direct Reading
Notes
- ↑ Edward Weston (chemist) page on wikipedia
- ↑ Letter from Weston employee and the Western Photographic Historical Society Photographica Digest, vol.XII no.12 has an article on the Westons and a copy of the patent. See also Google Patents: US 2016469 Exposure Meter
- ↑ Sangamo History
Links
- Weston Master article by David Haardt
- Weston meter manuals at www.orphancameras.com
- Weston Master V instruction manual on Mike Butkus' site
- Megatron - current manufacturers of EuroMaster
- Patent 2016469 Exposure Meter
- Patent 2046665 Exposure Meter
- Patent 2203209 Exposure Meter
- Weston Light Meter Manuals: Photo-Manuals.com by Ben Squire
- Several articles about Weston meters in James Ollinger's Exposure Meter Collection.
- 1950 advertisement for the Weston Master II
