C41
Kodak Portra 400
Kodak Portra 400 is a professional C-41 color negative film known for flexible exposure latitude, natural skin tones, and fine grain.
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rangefinder-medium-format
The Koni-Omega Rapid (1964) is a 6×7cm format (nominally 56×70mm) rangefinder press camera built in Japan by Konishiroku Photo Industry (Konica) and distributed in North America under the Koni-Omega brand through Berkey Photo Inc. It shoots 120 or 220 roll film via interchangeable film magazines, producing 10 exposures per 120 roll in the 6×7 format.
Reference
Recommended film stocks for the — format your camera takes.
C41
Kodak Portra 400 is a professional C-41 color negative film known for flexible exposure latitude, natural skin tones, and fine grain.
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Kodak Portra 160 is a professional C-41 color negative film with fine grain, soft contrast, and natural color.
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Kodak Ektar 100 is a fine-grain C-41 color negative film with saturated color and high sharpness.
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About this camera
The Koni-Omega Rapid was Japan's answer to the professional 6×7 press camera — a rugged, hand-holdable medium-format rangefinder with interchangeable lenses and film backs, built by Konica (Konishiroku) and marketed in North America through Berkey Photo.
| Field | Value |
|---|
| Format | 120 / 220, 6×7cm (10 exp / 120) |
| Mount | Koni-Omega bayonet (interchangeable) |
| Years | 1964–1975 |
| Primary lens | Hexanon 90mm f/3.5 |
| Other lenses | 58mm f/5.6 wide, 135mm f/4.5 tele |
| Shutter | Leaf (in lens): 1s – 1/500s + B |
| Flash sync | All speeds (leaf shutter) |
| Film advance | Push-pull rapid advance |
| Meter | None |
| Viewfinder | Coupled rangefinder, parallax-corrected brightlines |
| Battery | None |
Konishiroku developed the Koni-Omega Rapid in the early 1960s as a professional-grade medium-format press camera, drawing on American marketing research that highlighted demand for a handholdable 6×7 camera with interchangeable backs — analogous to the Graflex Speed Graphic series but with a more modern film-transport system. Berkey Photo of New York handled North American distribution.
The Rapid's push-pull advance was designed with photojournalists in mind: newspaper and magazine photographers needed to grab sequential frames quickly, and the conventional TLR knob-wind was too slow. The interchangeable magazine system allowed pre-loaded backs to be swapped in the field, further accelerating workflow.
The Koni-Omega line was later updated as the Rapid 100 (1968) and the Rapid 200, and continued in refined form into the 1970s. Konica eventually phased out the line as the Mamiya RZ67, Pentax 6×7, and Hasselblad dominated the professional medium-format market.
The Koni-Omega Rapid holds a distinctive position: it was among the first truly handholdable 6×7 press cameras to reach widespread professional use in North America. Its push-pull advance, full-speed flash sync via leaf shutters, and interchangeable backs made it a practical tool for magazine and commercial work. Today it is collected as a capable shooter — the Hexanon 90mm f/3.5 is an excellent lens — and valued as a more affordable entry into 6×7 medium format compared to Hasselblad or Mamiya RZ67 systems.
Three lenses cover the Koni-Omega Rapid system, each with an integral Seikosha leaf shutter:
Film magazines are interchangeable for 120 and 220 film. The system accepts standard flash sync via PC socket.
BW
Kodak Tri-X 400 is a classic black-and-white film known for strong tonality, visible grain, and documentary character.
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