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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The RB67 ("Roll-film, Bellows, 6×7") is a fully mechanical 6×7 medium-format SLR. The defining feature is its **rotating back**: the film magazine spins on the body, so you switch between portrait and landscape orientation without tipping the camera. Focusing is by **bellows**, geared by twin knobs on the body; lenses don't focus internally. Leaf shutters live in each lens. No meter, no battery — pure mechanical.
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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Before you buy used
About this camera
The studio brick. 6×7 negatives, a rotating film back so you don't tilt the camera, and weight that pins you to a tripod.
| Field | Value |
|---|
| Format | 120 / 220, 6×7 cm (10 frames per 120 roll) |
| Mount | Mamiya RB |
| Years | 1970–2005 (Pro / Pro-S / Pro-SD generations) |
| Shutter | 1s – 1/400s, Seiko leaf, in each lens |
| Flash sync | All speeds |
| Meter | None (AE prism finder available) |
| Weight | 2,700 g (loaded) |
| Battery | None |
Released 1970. The original RB67 Pro begat the Pro-S (1974, multiple-exposure interlock improvements), then the Pro-SD (1990, K/L lens series, slightly larger throat). The RZ67 (1982) replaced it as the electronic-shutter sibling, but RB production continued for 35 years. Studio commercial photography in the 1970s–90s effectively ran on RBs — they were faster than 4×5 view cameras, gave a 6×7 negative that scaled up to magazine spreads, and had the rotating back that no other system offered.
For wedding photographers, the rotating back was the killer feature: every other 6×7 SLR (Pentax 67, Bronica GS-1, Mamiya RZ67) made you turn the entire camera sideways for vertical portraits. For studio shooters, the bellows focusing and leaf shutter let them sync flash at any speed and shoot tethered to softboxes. The negatives are large enough that scanning produces files comparable to digital medium-format backs.
The downside is weight — at 2.7 kg loaded, it's a tripod camera, full stop. Hand-holding works for portraits if you're conditioned to it.
Mamiya-Sekor C (original) and K/L (later, multicoated) lenses. Common: 90mm f/3.8 (kit, equivalent ~45mm full-frame), 50mm f/4.5 wide, 65mm f/4.5 wide-normal, 127mm f/3.8 portrait, 180mm f/4.5 portrait, 250mm f/4.5 telephoto. 120, 220, and 6×4.5 backs available. Polaroid backs popular for studio proofing. AE prism finder, plain prism finder, waist-level finder.
BW
Ilford HP5 Plus is a flexible ISO 400 black-and-white film with classic grain and strong push-processing tolerance.
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Kodak Tri-X 400 is a classic black-and-white film known for strong tonality, visible grain, and documentary character.
View profile →Mamiya RB67
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