Difference between revisions of "Argus A2B"
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| + | The '''Argus A2B''' is like the [[Argus A]] but has a built-in extinction meter and exposure calculator. It was produced from 1939 thru 1950 and originally cost $12.50. | ||
| + | [[Argus]] of Ann Arbor, Michigan, held two U.S. patents on this camera. One was the Argus A patent, for a 35mm camera featuring a pop-out lens tube with a bayonet locking mechanism (by Argus's founder [[Charles Verschoor]], likely the work of his engineer Gustave Fassin). The second was for the [[Meter#Extinction_Meters|extinction meter]] with exposure calculator, invented by W.F. Carr. | ||
| − | The | + | The camera has a 50mm f/4.5 coated [[Anastigmat]], made in [[USA]], mounted in a shutter/aperture assembly with a nine-blade [[diaphragm]] for apertures f4.5 to f18 and an [[everset]] shutter with T and B modes plus the speeds 1/25, 1/50, 1/100 and 1/150 second. Other sources report A2B cameras with an [[Ilex]] shutter (1/200 sec. max speed), maybe the prewar variant. An exposure counting wheel on the camera's top is driven by the perforations of the [[35mm film]]. On top are also the film advance wheel, the advance-to-next-frame unlock button, the reverse Galilean [[viewfinder]], and the meter. The meter has a broad window through which more or less of the extinction meter's translucent foil pieces become visible, depending on the light situation. The exposure calculator's big shifter on top of the meter must be shifted as far right as light is visible through that window. Then the lower end of the little shifter must be shifted so that it points onto the word for the light situation ("bright", "average", "cloudy", or "light int."). Then the possible appropriate shutter-speed/aperture combinations can be read from the little shifter's aperture scale and the speed-table column left to it. The [[bakelite]] camera has a removable metal back door. With its nicely chrome-plated metal parts around the lens barrel and decent art deco styling of the body and back door, the camera is one of the beauties of U.S.-American viewfinder camera design. |
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== Links == | == Links == | ||
| + | {{Flickr image | ||
| + | | image_source=https://www.flickr.com/photos/framerkat/3882185153/in/pool-camerawiki | ||
| + | | image=https://live.staticflickr.com/65535/3882185153_86a036413d_m.jpg | ||
| + | | image_align=right | ||
| + | | image_text=Argus A2B's exposure calculator | ||
| + | |image_by=Kathy Hunt | ||
| + | |image_rights=with permission | ||
| + | }} | ||
* [http://www.arguscg.org/reference/a.shtml Argus A2B], amongst others, at [http://www.arguscg.org The Argus Collectors Group] | * [http://www.arguscg.org/reference/a.shtml Argus A2B], amongst others, at [http://www.arguscg.org The Argus Collectors Group] | ||
* Patents: | * Patents: | ||
Latest revision as of 14:31, 16 September 2022
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The Argus A2B is like the Argus A but has a built-in extinction meter and exposure calculator. It was produced from 1939 thru 1950 and originally cost $12.50.
Argus of Ann Arbor, Michigan, held two U.S. patents on this camera. One was the Argus A patent, for a 35mm camera featuring a pop-out lens tube with a bayonet locking mechanism (by Argus's founder Charles Verschoor, likely the work of his engineer Gustave Fassin). The second was for the extinction meter with exposure calculator, invented by W.F. Carr.
The camera has a 50mm f/4.5 coated Anastigmat, made in USA, mounted in a shutter/aperture assembly with a nine-blade diaphragm for apertures f4.5 to f18 and an everset shutter with T and B modes plus the speeds 1/25, 1/50, 1/100 and 1/150 second. Other sources report A2B cameras with an Ilex shutter (1/200 sec. max speed), maybe the prewar variant. An exposure counting wheel on the camera's top is driven by the perforations of the 35mm film. On top are also the film advance wheel, the advance-to-next-frame unlock button, the reverse Galilean viewfinder, and the meter. The meter has a broad window through which more or less of the extinction meter's translucent foil pieces become visible, depending on the light situation. The exposure calculator's big shifter on top of the meter must be shifted as far right as light is visible through that window. Then the lower end of the little shifter must be shifted so that it points onto the word for the light situation ("bright", "average", "cloudy", or "light int."). Then the possible appropriate shutter-speed/aperture combinations can be read from the little shifter's aperture scale and the speed-table column left to it. The bakelite camera has a removable metal back door. With its nicely chrome-plated metal parts around the lens barrel and decent art deco styling of the body and back door, the camera is one of the beauties of U.S.-American viewfinder camera design.
Links
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| Argus A2B's exposure calculator image by Kathy Hunt (Image rights) |
- Argus A2B, amongst others, at The Argus Collectors Group
- Patents:
