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 Alpa 7s is a 35mm single-lens reflex camera produced by Pignons S.A. of Ballaigues, Switzerland, introduced in 1957 as a direct successor to the Alpa 7. The essential mechanical architecture is unchanged from its predecessor — focal-plane shutter running from 1 second to 1/1000s plus B, the Alpa bayonet mount, pentaprism eye-level finder, and fully mechanical operation. The sole distinguishing addition is a selenium cell exposure meter integrated into the camera body, its reading needle visible either through a small window on the top plate or in the viewfinder, depending on the variant.
Reference
Recommended film stocks for the 35mm 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.
View profile →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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Kodak Gold 200 is a daylight-balanced C-41 color negative film with warm color, moderate grain, and a classic consumer-film look.
Develop 35mm film
Labs in our directory that process 35mm film.
Before you buy used
About this camera
The metered twin of the Alpa 7 — same Swiss mechanics, selenium cell added to the body.
| Field | Value |
|---|
| Format | 35mm |
| Mount | Alpa bayonet |
| Years | 1957 – |
| Metering | Selenium cell, uncoupled |
| Battery | None (selenium is self-powered) |
| Shutter | Focal-plane: 1s – 1/1000s + B |
| Flash sync | |
| Viewfinder | Pentaprism, eye-level |
| Focus aids | Ground glass |
| Mirror lockup | Yes |
The Alpa 7 ran from 1952 to 1957 as the flagship mid-tier Pignons offering. By the mid-1950s, exposure meters were becoming a standard expectation on professional-grade cameras; the Zeiss Contax IIa and IIIa divided the market precisely on meter inclusion, and German manufacturers were integrating selenium cells at a rapid pace. Pignons responded by engineering a selenium meter into the Alpa 7 body without otherwise altering the proven mechanics, producing the Alpa 7s.
The two models may have coexisted briefly in the catalogue, the unmetered 7 available at a lower price point for buyers who used a separate hand-held meter. This kind of parallel offering — metered and unmetered variants of the same body — was common in Swiss and German SLR lines of the period.
The Alpa numbering scheme ran broadly from lower to higher model numbers as features accumulated, but was never a strictly sequential progression. The 7s sits between the Alpa 7 and the later Alpa 9-series cameras, which brought further refinements to the metering and body design in the 1960s.
The Alpa 7s represents the inflection point at which Pignons moved from a fully manual, meter-free SLR to an integrated metering system, while refusing to compromise on mechanical build quality. The selenium cell solution was conservative by choice: it added convenience without adding a battery dependency, which aligns with the Pignons engineering philosophy of building cameras for indefinite service life.
Collectors value the 7s within the Alpa system largely because the selenium meter, if still functional, adds usability without the quirks of later CdS-cell metering requiring obsolete mercury batteries. A working selenium cell on a 7s is a genuine practical asset; a dead cell does not prevent the camera from operating mechanically.
The Alpa mount's continuity across all Pignons-era bodies means that lenses purchased for the 7s are equally at home on later Alpa 9d, 10d, 11, and 11ei bodies. The glass investment is portable across the entire system.
The Alpa mount accepts the full range of Kern and third-party Alpa-mount optics:
No motor drive was available for this body. The Alpa system's accessory ecosystem was lean by design.
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 Ektar 100 is a fine-grain C-41 color negative film with saturated color and high sharpness.
View profile →Alpa 7s
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