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 Bronica ETR Plus (1980) is a transitional update to the original ETR (1976), introducing improved coupling with TTL-capable AE prism finders to bring metered exposure control into Bronica's 6x4.5 medium-format SLR platform. Like the ETR before it, the ETR Plus uses Seiko electronic leaf shutters housed in each interchangeable Zenzanon lens, providing flash sync at all shutter speeds. The modular ETR architecture - interchangeable film backs, viewfinders, and motor winders - carried over without change.
Reference
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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 original ETR updated with a TTL metering prism connection - the 645 workhorse refined.
| Field | Value |
|---|
| Format | 120 / 220, 6x4.5 cm (16 frames per 120 roll) |
| Mount | Bronica ETR (bayonet) |
| Years | ~1980 - ~1985 |
| Shutter | 8s - 1/500s, Seiko electronic leaf, in each lens |
| Flash sync | All speeds (leaf shutter) |
| Meter | None (body); via AE prism finder |
| Modes | Manual; aperture priority via AE metered prism |
| Weight | ~1,380 g (estimated) |
| Battery | 1x 6V (required for shutter operation) |
The ETR series began in 1976 with the founding ETR body, establishing Bronica's answer to the Hasselblad 500 series in the more compact 6x4.5 format. The original ETR lacked TTL metering integration; exposure required a separate handheld meter or estimation. The ETR Plus addressed this by tightening the communication between body and the AE-series metered prism finders, allowing aperture-priority automatic exposure without user calculations in adequate light.
By 1979 the ETRS followed, and by 1985 the ETRS Plus carried the line further. The ETR Plus occupies the early years of the 1980s market, when wedding and portrait photographers in Japan and Europe were transitioning from fully manual metering to semi-automatic workflows.
The ETR Plus represents the point at which Bronica's 645 system became practical for working photographers who could not afford a full-time light-meter assistant. The all-speeds flash sync, inherited from the Seiko leaf shutter in each lens, was the system's primary advantage over focal-plane competitors like the Mamiya M645 at the time: studio strobes and on-camera flash could be used at 1/500s rather than the 1/60s or 1/90s common on focal-plane bodies.
For contemporary users the ETR Plus is largely a collector's variant. Optically and mechanically it shares everything with the later ETRS; the metering coupling difference between them is minimal for photographers using flash in manual mode or shooting with a handheld meter.
Bronica ETR bayonet mount. Zenzanon-E lenses (electronic leaf shutter): 40/4 E, 50/2.8 E, 75/2.8 E (standard), 100/2.8 E, 150/3.5 E, 200/4.5 E, 250/5.6 E. Later Zenzanon-PE lenses are forward-compatible. Film backs: 120 and 220 E-series backs; Polaroid back. Finders: waist-level folding hood (standard), magnifying chimney, AE metered prism (aperture-priority), non-metered eye-level prism. Motor winder E attaches to base for auto-advance.
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.
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