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Digital Camera World
Digital Camera World
James Artaius

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

OM System OM-1 Mark II being used by photographer James Artaius.

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.

For instance, its signature feature – the Live GND filter, which is a brilliant software-powered graduated ND filter – is single-handedly enough to transform the way that you shoot landscapes. 

Throw in improved autofocus, more than double the buffer depth (with a top speed of 120fps) and an industry-best 8.5 stops of in-body image stabilization, and it's time to let go of the lazy narrative that this camera is "just an OM-1 with a firmware upgrade". If you're a photographer who works outdoors, this may be the best camera you'll ever use.

As always, OM cameras deliver some of the best colors straight out of camera OM System OM-1 Mark II + Super Takumar 50mm f/1.4 (1/2500 sec, f/1.4, ISO200) (Image credit: James Artaius)

OM System OM-1 Mark II: Specifications

OM System OM-1 Mark II: Price & availability

The OM System OM-1 Mark II is, in my opinion, the ultimate outdoor camera (Image credit: James Artaius)

The OM-1 Mark II is priced $2,399 / £2,199 / AU$3,799 – a very reasonable price for such a powerful camera, but many people have a prejudice against this kind of price for a Micro Four Thirds camera. 

In terms of how this compares to its predecessor, in the US you're only looking at a price difference of about $400. However, the original OM-1 is currently very aggressively priced in the UK and Australia – available for as little as £1,378 and AU$2,102 at the time of writing. It's worth noting that its closest rival, the Panasonic G9 II, is considerably cheaper at $1,897 / £1,689 (though it's about the same price in Australia).

If you only equate value to sensor size then you might feel that the OM-1 Mark II is overpriced. But if you actually look at the features on offer, this is a very appropriately priced camera.

OM System OM-1 Mark II: Build & handling

(Image credit: James Artaius)
(Image credit: James Artaius)
(Image credit: James Artaius)
(Image credit: James Artaius)
(Image credit: James Artaius)
(Image credit: James Artaius)
(Image credit: James Artaius)
(Image credit: James Artaius)
(Image credit: James Artaius)
(Image credit: James Artaius)
(Image credit: James Artaius)
(Image credit: James Artaius)
(Image credit: James Artaius)

Externally the OM System OM-1 Mark II looks, feels and is virtually indistinguishable from its predecessor. I love that it keeps the silhouette and handling from the old Olympus OM-D E-M1 series, so you get a nice chunky grip, instinctive control layout, and a responsive joystick.

The only noticeable changes on the outside are the newly rubberized control dials (replacing the plastic ones that many felt didn't offer enough grip) and the OM System logo replacing the old Olympus one (which may have been the main reason to release a Mark II, if you subscribe to the theory that OM System was only allowed to use the Olympus branding for two years following the sale).  

Despite being lightweight, the build quality is super robust. The body is IP53-certified, making it one of the most weather-sealed cameras you can buy (when paired with an appropriate weather-sealed lens!) – perfect for challenging conditions such as rain, dust and snow.

Shooting at 1200mm, handheld? No problem for this camera's 8.5 stops of in-body image stabilization OM System OM-1 Mark II + M.Zuiko 150-600mm f/5.0-6.3 (1/250 sec, f/6.3, ISO200) (Image credit: James Artaius)

Something that doesn't get talked about enough is OM's Super Sonic Wave Filter, which is a crucial complement to weather sealing. I can't tell you the number of times I've used Sony cameras and ended up with dust on the sensor, simply from changing lenses; the Filter on the OM vibrates the sensor 30,000 times per second when you power on the camera, shaking loose any particulates. 

The fully articulated rear screen is perfectly serviceable, with 1.62 million dots of resolution, but the 5.76 million-dot electronic viewfinder really shines. It offers all the detail you need during shooting, and also enables you to really punch into your images to check them out and examine fine detail and focus. 

This isn't something that bothers me, but I know that some "reaction shooters" prefer the power switch to be on the right-hand side of the body (for quicker, one-handed activation when the action starts unexpectedly). Here the switch is on the top-left, so that's potentially something to be aware of.

There is no subject detection for squirrels, but the camera's 'dog and cat mode' tracks them pretty well! OM System OM-1 Mark II + M.Zuiko 150-600mm f/5.0-6.3 (1/320 sec, f/6.3, ISO200) (Image credit: James Artaius)

OM System OM-1 Mark II: Performance

Everything I asked of this camera, it knocked out of the park. Let's start with what's new here, namely the headline feature: Live GND, which is the coolest camera feature I've ever used. 

It's the next evolution of Olympus / OM System's Live ND filter: a software-driven feature that gives you an in-camera neutral density filter (up to a 7-stop on the OM-1 Mark II) without the need for a physical filter on your lens. 

Live GND, as you might have guessed, is a software-powered ND grad filter – and again, it gives you an in-camera grad without needing one on your lens. Here's a quick look at how it works:

Turn on Live GND Shooting, choose the intensity of your grad, then simply angle and place it in your frame (Image credit: James Artaius)
Here's the difference it makes (click the tab in the top-right corner to enlarge): on the left is the shot with Live GND, on the right is the shot with no filter. The effect is amazing! (Image credit: James Artaius)

Powering Live GND is increased onboard RAM in the OM-1 Mark II, which also provides the muscle for any number of new features – which is why this camera is much more than "just an OM-1 with a firmware update".  

The in-body image stabilization, for example, now delivers an industry-best 8.5 stops of compensation – all thanks to the increased algorithmic power made available by the increased memory. 

And while it's admittedly hard to discern the half-stop difference between the 8 stops offered by the OM-1 (using Sync-IS lenses), I shot extensively at 1200mm with the new M.Zuiko 150-600mm lens – and it was absolutely rock-solid for stills and video alike.

Micro Four Thirds sensors have an inherently greater depth of field – which can be an advantage for wide-aperture work such as macro shots OM System OM-1 Mark II + M.Zuiko 12-40mm f/2.8 (1/50 sec, f/2.8, ISO200) (Image credit: James Artaius)

The autofocus is improved, too. Not only is subject tracking significantly better, enabling me to keep up with birds in flight at a much-improved rate, but AI Detection AF for humans has also been introduced (and added to the main subject detection submenu, rather than being separate) – again, a result of the increased RAM. 

Birding is one of the trickiest challenges for any AF system, and one that Olympus / OM has occasionally struggled with. I was amazed when photographing birds – and humans, too – that subject detection is stickier than ever, even when foreground objects threaten to trick the autofocus.

What else has been improved on the OM-1 Mark II that can't be achieved via firmware? The buffer depth has more than doubled, topping out at 213 RAW files when shooting blackout-free 120fps bursts (it should be noted that 120fps is only offered with locked focus, but full AF is offered at up to 50fps shooting). 

I was impressed at how the improved AF can pick out subjects even within busy environments OM System OM-1 Mark II + M.Zuiko 150-600mm f/5.0-6.3 (1/400 sec, f/6.3, ISO200) (Image credit: James Artaius)

While 120fps is amazing, a feature I'm personally grateful for is the addition of slower burst rates. The OM-1 Mark II can now shoot at 12.5 or 16fps – which is ideal for situations where 25, 50 or 120fps are just overkill. 

The Hi-Res Shot has been improved, too, now offering 14-bit depth when shooting 50MP handheld or 80MP tripod shots. I don't use this mode super often, but since I treat it as "ultimate image quality mode" I really appreciate that it now delivers RAW files with even better detail. 

And of course, there's all the "standard" features like Live Composite (for easy light painting, lightning shots and star trails), IP53-certified weather sealing, and in-camera focus stacking – which I learned from my buddy Chris Nicholls is a feature exclusive to OM System, because it owns the patent (so other cameras can bracket photos, but only OM can stack them in-camera). 

Having such a discreet and compact system means you can get shots of subjects that larger camera gear might scare away OM System OM-1 Mark II + M.Zuiko 150-600mm f/5.0-6.3 (1/1000 sec, f/6.2, ISO640) (Image credit: James Artaius)

So what are the OM-1 Mark II's weak spots? Unsurprisingly, it's video. Which isn't to say that the video is bad, because it's not; it's just not a patch on a more video-conscious body like the Panasonic G9 II

The FullHD and 4K footage I shot looks great. The 8.5 stops of stabilization makes it not only possible but practical to shoot handheld at 1200mm. And the AF is brilliant at picking up and staying with subjects. But 8-bit video is ho-hum, and 10-bit still has the baffling issue of hiding the histogram so you can't monitor your exposure. 

The video modes here are perfectly fine, and OM has always been a photography-oriented brand, but if you're a video-first or hybrid shooter then something like the G9 would be a better bet.

Used sensitively, OM System's Art Filters can be used for beautiful pre-production on your images OM System OM-1 Mark II + Super Takumar 50mm f/1.4 (1/1250 sec, f/1.4, ISO200) with Vintage III in-camera filter (Image credit: James Artaius)

OM System OM-1 Mark II: Sample images

OM System OM-1 Mark II + M.Zuiko 150-600mm f/5.0-6.3 (1/250 sec, f/6.3, ISO200) (Image credit: James Artaius)
OM System OM-1 Mark II + M.Zuiko 12-40mm f/2.8 (1/50 sec, f/5.0, ISO200) (Image credit: James Artaius)
OM System OM-1 Mark II + M.Zuiko 150-600mm f/5.0-6.3 (1/500 sec, f/6.3, ISO200) (Image credit: James Artaius)
(Image credit: James Artaius)
OM System OM-1 Mark II + M.Zuiko 150-600mm f/5.0-6.3 (1/160 sec, f/5.9, ISO500) (Image credit: James Artaius)
OM System OM-1 Mark II + M.Zuiko 30mm f/3.5 Macro (1/200 sec, f/3.5, ISO200) (Image credit: James Artaius)
OM System OM-1 Mark II + M.Zuiko 30mm f/3.5 Macro (1/5 sec, f/3.5, ISO200) (Image credit: James Artaius)
OM System OM-1 Mark II + M.Zuiko 150-600mm f/5.0-6.3 (1/320 sec, f/6.3, ISO200) (Image credit: James Artaius)

OM System OM-1 Mark II: Lab data

For our lab data comparison, we chose three competing high-end cameras priced in line with the OM-1 Mark II: the Canon EOS R6 Mark II, Nikon Z 7II, and the Sony A7 IV. Let's see whether this MFT camera can match the image quality of rivals with considerably larger full-frame sensors.

We test resolution using Imatest charts and software, and dynamic range and signal to noise ratio with DxO Analyzer.

Resolution:

(Image credit: Future)

Inevitably with only 20.4 megapixels on tap, the OM-1 Mark II was never going to beat a camera like the Nikon Z 7II for outright resolving power. Even so, it's impressive that it gets so close to the Canon EOS R6 Mark II, despite the OM-1's considerably smaller sensor.

Dynamic range:

(Image credit: Future)

Not only does the OM-1 Mark II match its full-frame rivals for dynamic range, it actually comes out on top - a stellar performance.

Signal to noise ratio:

(Image credit: Future)

This test compares the amount of random noise generated by the camera at different ISO settings as a proportion of the actual image information (the 'signal'). Higher values are better and we expect to see the signal to ratio fall as the ISO is increased.

More proof that a smaller sensor doesn't need to compromise image quality: while the OM-1 Mark II can't quite produce the cleanest images of the group, it does at least equal the Z 7II and A7 IV throughout the tested ISO range.

OM System OM-1 Mark II: Verdict

If this review has done one thing, I hope that it's dispel the myth that the OM-1 Mark II is just a glorified firmware update. Could a Mark II camera do even more? It certainly could. However, this camera does things that the original OM-1 can't do – and things that no other camera on the market can dream of.

OM System has repositioned itself as an outdoor and adventure camera specialist. And indeed, if you're an outdoor photographer who shoots landscapes in particular, I can't think of a better camera to take out in your pack with you. 

But it's such a shame to pigeonhole this as just "a landscape camera" or "a wildlife camera". Yes, those are its specialties, but this is a supremely confident and capable camera that is fantastic for so many more genres. 

Worried about sharpness? Enlarge the image and take a look at the fur – and the drop of water on the right-hand whiskers! OM System OM-1 Mark II + M.Zuiko 12-40mm f/2.8 (1/160 sec, f/5.0, ISO1250) (Image credit: James Artaius)

I personally love it for shooting portraits, particularly paired with the M.Zuiko 75mm f/1.8 or an old manual lens. It's also phenomenal for macro, where the shallow depth of field and in-camera focus stacking and bracketing make the process so much simpler. 

The OM System OM-1 Mark II is the cleverest camera on the market – and its computational photography is nothing short of wizardry. Get this, and you'll get shots that no other camera can. 

And please ignore the anti-Micro Four Thirds rhetoric! Just look at our lab data and you can see that this sensor more than holds its own against (and in some cases outperforms) full-frame rivals. 

OM System OM-1 Mark II: Alternatives

You may be interested in the best Micro Four Thirds lenses – which features many of the best Olympus / OM System lenses.

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