.ORF · 2024 · 20 MP Micro Four Thirds

OM System OM-1 Mark II RAW Files: Open, Cull & Edit .ORF Free

An updated flagship refining the OM-1's autofocus and buffer depth for wildlife and sports photographers. Extended Pro Capture buffering means even longer bursts can now be captured around a single decisive moment. That extended buffer only increases the volume of near-duplicate frames that automated culling needs to work through.

OM System OM-1 Mark II RAW at a glance

RAW formatORF — Olympus RAW Format (.ORF)
Sensor20 MP Micro Four Thirds
Resolution20 megapixels
Typical RAW sizeabout 18-23 MB
Released2024
RAW options12-bit ORF RAW, uncompressed, from OM System's stacked Four Thirds sensor.

Editing OM-1 Mark II files with imagic

imagic opens .ORF files from the OM System OM-1 Mark II natively on Windows and macOS. Point it at a card or shoot folder and it builds previews, scores every frame for sharpness, closed eyes, and composition, and groups near-duplicate bursts — so a full shoot collapses to its keepers before you edit anything.

Processing runs through the bundled RawTherapee engine, entirely on your machine: batch-apply one look across the keepers and export JPEGs in a single pass. Nothing uploads, which matters at about 18-23 MB per frame. The 7-day trial is full-featured and needs no card; licenses are one-time, from €19.

Frequently asked questions

What RAW format does the OM System OM-1 Mark II use?

The OM System OM-1 Mark II writes ORF files with the .ORF extension. 12-bit ORF RAW, uncompressed, from OM System's stacked Four Thirds sensor.

How big are OM System OM-1 Mark II RAW files?

Expect about 18-23 MB per frame from the 20 MP Micro Four Thirds sensor, depending on compression settings and scene detail. A full shoot adds up quickly, which is why culling before editing matters on this body.

How can I open OM System OM-1 Mark II .ORF files for free?

imagic opens ORF files from the OM System OM-1 Mark II natively on Windows and macOS — the 7-day trial needs no card. It culls the shoot with AI quality scoring, groups duplicates, and batch-processes keepers locally through its RawTherapee engine.

More about ORF

The OM-1 Mark II's .ORF files share their structure with every Olympus / OM System body using ORF — the full ORF guide covers compression variants, free openers, and conversion options in depth.

Other OM System bodies

OM System OM-1 OM System OM-5

Cull a OM-1 Mark II shoot before your coffee cools

AI quality scoring, duplicate grouping, and local batch processing for .ORF — free for 7 days, no card required.

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