OM System OM-1 Mark II review: the camera that will make you jealous

Ignore all the narratives – the OM System OM-1 Mark II has features that you WISH your camera had

5 Star Rating
OM System OM-1 Mark II being used by photographer James Artaius
(Image: © James Artaius)

Digital Camera World Verdict

It's hard to fault the OM System OM-1 Mark II. Yes, it's similar to its predecessor, but the differences are huge ones – including one that's so significant, I wish every camera had it. In my opinion, this is the ultimate outdoor camera: it's astonishingly weather-proofed, its compactness is unparalleled, it negates the need for both ND filters and grads, it matches full frame sensors for ISO noise and actually beats them for dynamic range, the improved autofocus is super-reliable even for birding, and the 2x crop factor is a secret weapon for wildlife.


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    Software-based ND / grad filters

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    8.5 stops of stabilization

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    120fps burst shooting

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    IP53-certified weather sealing


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    20.4MP native resolution

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    Larger inherent depth of field

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    Very similar to original OM-1

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    Still uses SD cards

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The OM System OM-1 Mark II has a lot to live up to. The original OM-1 was universally considered a home run – a rare example of the industry giving love not only to a Micro Four Thirds camera, but to OM Digital Solutions as a company in its first true post-Olympus product. 

While I can't deny that the OM System OM-1 Mark II is similar in a lot of ways to its predecessor, it also can't be denied that it has some significant improvements – and that there is no other camera that can do what it does.

Swipe to scroll horizontally
Row 0 - Cell 0 Row 0 - Cell 1 Row 0 - Cell 2
Sensor20.4MP stacked back-side illuminated Row 1 - Cell 2
FormatMicro Four ThirdsRow 2 - Cell 2
Lens mountMicro Four ThirdsRow 3 - Cell 2
Autofocus1053 cross-type hybrid phase detectRow 4 - Cell 2
Image stabilizationUp to 8.5 stopsRow 5 - Cell 2
ISO range200 to 25,600 (exp 80 to 102,400)Row 6 - Cell 2
VideoUp to 4K 30p (High-Speed FullHD 240p)Row 7 - Cell 2
Viewfinder5.76 million-dot EVF, max 1.65x magnificationRow 8 - Cell 2
LCD3-inch, 1.62 million-dot vari-angle touchscreenRow 9 - Cell 2
Memory2x UHS-II SD cardRow 10 - Cell 2
Max burst120fps (213 RAW / buffer 92 RAW + 92 JPG) Row 11 - Cell 2
ConnectivityWiFi, Bluetooth, USB-C, Micro HDMI, headphone jack, microphone jack, sync socketRow 12 - Cell 2
Size138.8 x 91.6 x 72.7mmRow 13 - Cell 2
Weight511g body only / 599g (with battery + memory card)Row 14 - Cell 2

While the Mark II offers some significant upgrades, the original OM System OM-1 is a worthy alternative if you can find it at a good price, with most of the same specs, features, functions, and the same body and weather sealing.


If you want a pure outdoor device then the OM System Tough TG-7 is the ultimate waterproof, freezeproof, shockproof, crushproof camera with a 12MP sensor and 24-100mm optical zoom lens with built-in macro modes. 

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James Artaius

The editor of Digital Camera World, James has 21 years experience as a journalist and started working in the photographic industry in 2014 (as an assistant to Damian McGillicuddy, who succeeded David Bailey as Principal Photographer for Olympus). In this time he shot for clients like Aston Martin Racing, Elinchrom and L'Oréal, in addition to shooting campaigns and product testing for Olympus, and providing training for professionals. This has led him to being a go-to expert for camera and lens reviews, photo and lighting tutorials, as well as industry news, rumors and analysis for publications like Digital Camera MagazinePhotoPlus: The Canon MagazineN-Photo: The Nikon MagazineDigital Photographer and Professional Imagemaker, as well as hosting workshops and talks at The Photography Show. He also serves as a judge for the Red Bull Illume Photo Contest. An Olympus and Canon shooter, he has a wealth of knowledge on cameras of all makes – and a fondness for vintage lenses and instant cameras.