Olympus OM-2
The Olympus OM-2 is a small picture - SLR (35 mm film), manual focus on the lens. Together with the Olympus OM-1 , it establishes the Olympus OM system and is the predecessor of other professional Olympus SLRs ( Olympus OM-2SP , Olympus OM-4 / OM-4 Ti ).
Technical specifications
- Production OM-2: 1975 - 1979 by Olympus Optical Co., Japan
- Production OM-2n: 1979 - 1984 by Olympus Optical Co., Japan
- Dimensions: 136 × 83 × 50 mm
- Weight: (housing alone) 520 grams
- Viewfinder: Pentaprism viewfinder, 97% of the film area visible; exchangeable adjustment discs
- Exposure times: 120 - 1/1000 sec. And B
- Shutter type: Cloth focal plane shutter with time control from approx. 60 seconds to 1/1000 sec, running horizontally
- Exposure metering: The camera has an aperture priority function . The exposure measurement on the Olympus OM-2 is done through the lens ( TTL ); When the shutter is open , the light reflected by the film is measured (“off the film”, OTF; also called “ autodynamic ” control), thus enabling correct exposure even for long-term recordings as well as in the micro and macro range . Center-weighted measurement (especially with short exposure times); Exposure compensation ± 2 f-stops in 1/3 steps.
- Flash: removable hot shoe above the prism ; Synchronous time 1/60 sec .; PC socket . A maximum of 9 Olympus T-flashes can be triggered simultaneously and controlled autodynamically using a flash cable. H. the amount of light emitted by the flash units is determined dynamically by the OM 2 when the shutter is open.
- Self-timer: mechanical, 4 - 12 seconds forward
- Film transport: manual or with connected winder (2.5 fps) or motor drive (5 fps), manual film rewind
- Exchangeable rear wall: 250 magazine, Recordataback
- Power supply: 2 silver oxide button cells ( SR44 )
- Other special features: The mirror impact has been reduced to a minimum by pneumatic shock absorbers. When the camera is switched off, correct exposure in the range from 1/30 s to 1/1000 s is possible.
Olympus OM-2n
In 1979 Olympus made minor improvements to the OM-1 and OM-2, the improved models were given an n for "new". With the OM-2n, a flash readiness display above the time scale and a display for entering an exposure correction below the time scale have been implemented in the viewfinder. The longest possible exposure time in automatic mode was limited to 120 seconds. With the OM-2, the longest exposure time is only limited by the charge level of the battery. Instead of the type 2 hot shoe, the camera was delivered with the type 4 hot shoe.
Differences to cameras from other manufacturers
Compared to other professional cameras of its time, the OM-2 was very small and light, especially when compared to the Canon F-1 and Nikon F2, which dominated the professional market at the time . Compared to its counterparts from Canon and Nikon, the OM-2 does not have an interchangeable viewfinder, so the focusing screen is changed through the bayonet, as with the Nikon - FM . In order to compensate for the lack of an interchangeable viewfinder, Olympus offered an angle viewfinder as an accessory.
Instead of the memory measurement used by other manufacturers at the time , the OM-2 measures automatically in automatic timing mode (labeled as Auto on the camera), which means that the exposure can be lengthened or shortened while the shutter is still running. Last but not least, the OM-2 is the first professional SLR camera that can also control the TTL camera flash , which can be seen as a major step forward over other cameras. In terms of the shortest exposure time, however, the OM-2 has to admit defeat, Canon and Nikon already realized 1/2000 sec. At that time, while Olympus chose 1/1000 sec. As the shortest exposure time. Only the locks of the OM-3 and OM-4 were designed for 1/2000.
Olympus went his own way with the stop-down button; this is not on the camera body, as is usually the case, but on the lens.
Web links
- Overview (English)
- Olympus OM system in olypedia.de
