OM System considered full frame and decided to stay with Micro Four Thirds

OM System studied building full-frame and APS-C cameras after inheriting Olympus's imaging business, and decided not to. The confirmation came from its managing director and chief operating officer, Setsuya Kataoka, and from the head of the business unit, Eiji Shirota. The company stays with a single format: Micro Four Thirds.

The temptation of the bigger sensor

Olympus's imaging business moved to OM Digital Solutions. With it came a reasonable question: whether to stay with a small sensor or step into the big-sensor field. Proposals for full-frame and APS-C bodies were discussed several times, and Kataoka acknowledged that he himself considered the change shortly after taking over the company.

The case for it is familiar: a larger sensor gathers more light, handles noise better and leaves more room to crop. For a brand competing with Sony, Canon and Nikon, the pull to play on that field was real.

The decision was held back by a conversation with an industry mentor, who reminded Kataoka that leadership is built by perfecting your own format before fighting on unfamiliar ground. And by a sum any photographer can do: a new mount means heavier lenses and bigger bodies.

Weight is the decision, not nostalgia

Had OM System opened a full-frame mount, it would have had to build a complete lens system to match. That weighs. And the brand's argument rests on weight: a 600 mm equivalent at f/4 weighs less than half the 35 mm equivalent, by its own comparison.

A bird photographer walks six hours with the kit on their shoulder. Someone working at 40 degrees below zero in Mongolia carries the same, plus more clothing and more batteries. For both, the difference between a compact body and a large one is not a minor annoyance: it is the difference between carrying the camera and leaving it.

The company also grounds the decision in toughness: IP53 sealing, freeze-proof construction and in-body stabilisation. None of that depends on sensor size, which helps explain why it considers them its own ground.

How they plan to close the quality gap

OM System acknowledges the big sensor's advantage in dynamic range and noise when you look at the raw file. It does not argue with that. What it proposes is to compensate with processing inside the camera. Handheld high resolution combines several shots up to 50 megapixels, or 80 on a tripod. Digital ND filters reach ND64. In-camera focus stacking handles macro.

Computational photography has a clear limit. It works when the subject holds still long enough to add up shots. A night portrait with people moving, or a scene where the dynamic range is needed in a single exposure, does not come out the same.

There is a second consequence, less discussed. If the brand's argument stops being the sensor and becomes processing, then it competes with anyone who can do the same, phones included. What holds it up is not the algorithm: it is the interchangeable optics and the sealing.

For anyone already shooting Micro Four Thirds, the news is reassuring: there is no format turn on the horizon and the system remains the centre of the business. For anyone choosing, the decision is clearer than before. OM System will not fight over dynamic range. It will fight over weight, toughness and the reach of its telephoto lenses, and that is worth knowing before buying.