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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slr-35mm
The Konica Acom-1 (1978) is a mid-range aperture-priority SLR that marks a significant shift in Konica's exposure philosophy. The Autoreflex line, from the original T in 1968 through the T3, T4, and TC, had used shutter-priority automatic exposure as its defining feature. The Acom-1 introduces aperture-priority AE to the Konica AR-mount system, following the direction set by competitors including the Olympus OM-2 (1975) and the Minolta XD-11 (1977).
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.
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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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Kodak Gold 200 is a daylight-balanced C-41 color negative film with warm color, moderate grain, and a classic consumer-film look.
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Before you buy used
About this camera
Konica's mid-range aperture-priority SLR with an electronic shutter - a 1978 pivot from the Autoreflex line's shutter-priority heritage.
| Field | Value |
|---|
| Format | 35mm |
| Mount | Konica AR bayonet |
| Year introduced | 1978 |
| Shutter | ~4s - 1/1000s + B, electronic vertical metal focal plane |
| Flash sync | ~1/125s |
| Meter | TTL silicon-cell centre-weighted |
| Modes | Aperture-priority auto / Manual |
| Viewfinder | Pentaprism |
| Battery | 4x LR44 / SR44 (required for shutter and meter) |
| Mechanical fallback | None |
By the mid-1970s the Japanese SLR market was moving away from shutter-priority AE toward aperture-priority systems. Photographers and reviewers found aperture-priority more intuitive for controlling depth of field, and Olympus, Minolta, and Canon had launched successful aperture-priority bodies. Konica's TC (1976) had refreshed the shutter-priority formula in a compact body, but the Autoreflex line needed an aperture-priority answer.
The Acom-1 was introduced in 1978 as that answer. Konica simultaneously retained the TC in production for existing shutter-priority users and offered the Acom-1 for photographers who preferred the aperture-priority approach. The electronic shutter was a key enabling technology, allowing precise stepless control that mechanical shutters could not match.
The Acom-1's tenure in the line was relatively short. The FS-1 (1979), with its built-in motor winder, and the subsequent TC-X represented the next evolution, and the Acom-1 was phased out as Konica consolidated its SLR range in the early 1980s before exiting the SLR business.
The Acom-1 provides aperture-priority AE in the Konica AR mount at a very low used price. For photographers who own Hexanon lenses and want a body that prioritises depth-of-field control over shutter speed selection, it is the natural choice within the AR system - more appropriate than the TC for controlled light situations, portraiture, or close-up work where aperture selection is primary.
The electronic shutter's stepless operation also enables finer AE precision than the fixed-stop mechanical shutters of the TC line. In practice this means the Acom-1 can expose more accurately in tricky mixed-light situations. The trade-off - total battery dependency - is worth acknowledging; unlike the TC (which also requires batteries for AE but at least fires the shutter), the Acom-1 is completely inoperable without power.
Full Konica AR bayonet mount. Compatible lenses: Hexanon AR 50mm f/1.7, 50mm f/1.4, 57mm f/1.2, 28mm f/3.5, 28mm f/1.8, 40mm f/1.8, 135mm f/3.2, 200mm f/4. Third-party AR-mount glass from Tokina, Tamron, Vivitar available. Accessories: Konica cable releases, standard hot-shoe electronic flash, PC-sync cord for studio flash.
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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.
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