By 1979, the OM-1 and OM-2 had made Olympus a serious contender among professional photographers.
But Olympus saw another opportunity:
bring the OM experience to a wider audience —
without sacrificing the core quality that made the system famous.
The result was the Olympus OM-10:
an affordable, lightweight SLR designed to deliver brilliant photography for beginners and enthusiasts alike.
Simple? Yes.
But make no mistake — the OM-10 still carried the bloodline of a true OM camera.
Designed for Simplicity: Aperture Priority First
At launch, the OM-10 operated purely in Aperture Priority Auto Mode.
You selected the aperture — the camera picked the shutter speed automatically.
This made the OM-10 one of the easiest SLRs of its era to pick up and use, especially for newcomers stepping up from point-and-shoots.
Want full manual control?
You could add it later by plugging in the optional Manual Adapter.
Olympus’s logic was smart:
- Keep the base camera streamlined and affordable.
- Offer advanced users a simple upgrade path without intimidating beginners.
Key Features of the OM-10
- Aperture Priority Auto Mode:
The OM-10 automatically selected the correct shutter speed based on aperture and metered light. - Manual Adapter Compatibility:
A small plug-in unit allowed full manual control over shutter speeds (sold separately). - Bright, Large Viewfinder:
~93% coverage, with clear LED indicators showing shutter speed recommendations. - Electronic Shutter:
Quartz-timed from 2 seconds to 1/1000s.
1/45s mechanical backup speed available if batteries fail. - Compact OM Body Style:
Shares much of the OM-1 and OM-2’s physical design DNA — light, small, beautifully balanced. - TTL Flash Metering:
Full through-the-lens flash metering when paired with Olympus T-series flashes. - Motor Drive Compatible:
Accepts Motor Drive 1 or Winder 2 for automatic film advance. - Battery Powered:
Requires two SR44 or equivalent 1.5V batteries for metering and shutter operation.
Olympus OM-10 Manual Adapter: How It Worked
The OM-10’s Manual Adapter was a clever (and cheap) solution:
- Plug it into the dedicated port on the front of the camera.
- Rotate the dial to manually select shutter speeds (from 1s to 1/1000s).
Without the adapter, the OM-10 remained locked in aperture-priority auto mode.
Today, finding a Manual Adapter alongside a working OM-10 is a major bonus.
How the OM-10 Compared to the OM-2N
| Feature | OM-2N | OM-10 |
|---|---|---|
| Metering System | OTF (Advanced) | Centre-weighted |
| Exposure Modes | Aperture Priority + Manual | Aperture Priority (Manual with adapter) |
| Viewfinder Info | Aperture readout + meter | Shutter speed LEDs |
| Build Material | Pro-grade | Consumer-grade |
| Motor Drive Options | Motor Drive 1/2 | Motor Drive 1 / Winder 2 |
The OM-10 wasn’t intended to compete directly with the OM-2N.
It was a gateway — a way to experience Olympus quality without a professional price tag.
How to Estimate the Age of Your OM-10
| Serial Number Range | Approximate Production Years |
|---|---|
| 100000 – 800000 | OM-10 |
Later OM-10 models were branded “Quartz Date” editions, offering a date imprinting feature.
Serial Location:
- Engraved on the top plate near the rewind crank.
Olympus OM-10: Full Specifications
| Specification | Detail |
|---|---|
| Year Released | 1979 |
| Shutter Speeds | 2s – 1/1000s (Quartz-Timed), 1/45s mechanical backup |
| Flash Sync | 1/45s |
| Metering Mode | Centre-weighted average |
| Exposure Modes | Aperture Priority Auto (Manual with adapter) |
| Viewfinder Coverage | ~93% |
| Motor Drive Compatibility | Winder 2, Motor Drive 1 |
| Batteries | Two 1.5V SR44 or one 3V CR1/3N |
| TTL Flash Support | Yes (with T-series flashes) |
| Build Material | Composite body with magnesium elements |
Manual for Download
Final Word
The OM-10 opened the door for a generation of photographers.
It proved that you didn’t need to mortgage your future to get serious about photography.
Fast, light, reliable — and part of one of the greatest 35mm systems ever made.
And if you wanted to grow?
The OM-10 could grow with you.
Even today, it remains one of the best-value entry points into real photography —
an understated legend that earned its place in the Olympus family.