OM System OM-1 Mark II

The OM-1 Mark II is a 2024 mirrorless camera from OM System, built around the Micro Four Thirds sensor format and lens mount.

Its defining strengths lean toward movement and the outdoors. Burst shooting reaches up to 120 fps with the electronic shutter, in-body stabilisation comes fitted, and the body is weather sealed. Sports, wildlife and handheld work in rough conditions are where this combination makes most sense.

Video is well covered too, with 4K at up to 60p and high-speed Full HD, so a single body can serve mixed stills and motion projects.

Recording tops out at 4K, offered in both DCI and UHD forms at up to 60p. The DCI option gives a slightly wider cinematic frame, while 60p allows natural motion or a gentle slow-down in the edit.

Capture is 10-bit 4:2:2 straight to the card, recorded internally rather than needing an external device. That preserves more colour and tonal detail than 8-bit recording, so graded footage and matched shots between scenes hold up better through correction.

For slow motion, frame rates reach 240 fps in Full HD. Detail drops below 4K, but the effect is dramatic for sport, water and splashes. Together, quality 4K and high-speed Full HD cover most documentary and creative projects.

The 20.4 megapixel Micro Four Thirds sensor keeps files modest in size. That is enough resolution for prints and everyday sharing, but it leaves less room for aggressive cropping than higher-resolution bodies offer, so tight framing in camera matters more here.

For movement, the electronic shutter reaches up to 120 fps while the mechanical shutter manages 10 fps. The faster figure is a maximum rate rather than a sustained promise, but it gives you a real chance at fleeting moments such as a bird mid-launch.

Autofocus draws on 1053 points, a wide choice of focusing positions for the system to use. A point count alone does not establish focus speed, accuracy or tracking, so those behaviours need hands-on testing to judge.

In-body stabilisation counters camera shake, so handheld shooting at slower shutter speeds stays practical. That matters because sensitivity tops out at ISO 25600. In dim interiors or evening streets you will lean on the stabilisation and steady holding rather than extreme ISO settings.

The body is weather sealed, so dust and moisture are less of a worry outdoors. Sealing is not waterproofing, and care is still sensible in heavy rain, but it makes changeable conditions workable rather than risky.

Framing comes through an electronic viewfinder, which shows the sensor's view directly. Exposure and colour decisions can therefore be judged before the shutter is pressed rather than checked afterwards.