OM System 90mm F3.5 Macro IS PRO review: macro photography magic

The most versatile macro lens money can buy

OM System 90mm macro lens attached to OM-1 camera in a garden next to flowers
Editor's Choice
(Image: © Future)

TechRadar Verdict

Combined with the OM-1 camera and cutting-edge Micro Four Thirds tech, the OM System 90mm macro lens is the most versatile and capable on the market for close-up photography. Handheld, it’s possible to achieve sharp macro images with enough depth at magnifications previously not possible. This is our new favorite macro lens.


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    Industry-leading magnification

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    Part of an incredibly versatile camera system

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    Generous minimum focus distance


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    Overkill for most people

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    Relatively expensive

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I’ve reviewed a lot of camera gear over the past 15 years, but every now and then a new bit of kit gets me super excited. In fact, I shared the 5 reasons why I couldn’t wait to use the OM System 90mm macro lens earlier this year on TechRadar. Thankfully, I didn’t have to wait too long to get my hands on one, and since then, I’ve had an extended period capturing next-level macro photography with it.

What makes the OM 90mm macro lens appear head and shoulders above the rest? For me, it is undoubtedly the most versatile and easy-to-use macro lens, especially when paired with the OM System OM-1 camera. This cutting-edge Micro Four Thirds tech thrives for macro photography for a number of reasons I’ll get into.

OM System 90mm macro lens close up of the controls on the lens barrel

(Image credit: Future)

Spec-wise, the Micro Four Thirds 90mm focal length and 2x magnification translate to a full-frame equivalent 180mm focal length lens with 4x magnification. The numbers get more extreme when you whack on a teleconverter, whereby you can multiply those numbers up to 1.4x or 2x again. Yes, you read those incredible numbers correctly.

That focal length is what I consider to be on the long end for macro and provides greater working distances than shorter focal lengths usually do – here, the minimum focus distance is a decent 0.224m / 8.8in. More distance makes a practical difference, especially when photographing live subjects that move or get scared easily in the shadow of encroaching, towering hunks of metal. 

OM System 90mm macro lens on the ground from above attached to the OM-1 camera

(Image credit: Future)

These long-end macro lenses, say on a DSLR camera, are bulky and expensive. And while the price for this lens is also high – $1,499 / £1,299 / AU$2,249 – it's comparatively tiny in size compared to like-for-like full-frame macro lenses.

A full-frame equivalent 4x magnification is ludicrous – most dedicated macro lenses max out at 1x magnification. Other more extreme macro lenses from the likes of quirky lens specialist Laowa are manual focus-only lenses, but the OM 90mm macro lens utilizes a powerful autofocus system.

It’s true that most macro photographers use manual focus only, but in my time with this lens, I have used both autofocus and manual focus with equal effect; the former can be used with in-camera automatic focus stacking (read on for more detail), while the latter can be done easily via the beautifully designed manual focus clutch.  

OM System 90mm macro lens from above with manual focus clutch active

(Image credit: Future)

Things become really interesting when you connect the OM 90mm macro lens with its perfect match, the OM System OM-1 mirrorless camera. Utilizing industry-leading in-body image stabilization, Focus Stacking computational mode, and intelligent autofocus, I found it entirely possible to shoot at such extreme magnifications handheld for the first time. 

Before I get further into the shooting experience, which, in this review, involved the OM-1 camera, I’ll take you on a quick tour around the lens itself. 

The build quality of the lens is excellent, built to match equally rugged cameras like the OM-1, with IP-53-rated weather resistance. Hopefully, OM System won’t mind reading that I’ve felt completely at ease using the lens in the rain and dirt over extended periods. 

You get a generous manual focus ring that pops down to reveal a manual focus clutch with focus distances and magnification marked out. My experience with manual focusing has been OK – it’s focus by wire, which means there is a little lag, but nothing that can't be worked with. 

OM System 90mm macro lens close up of the controls on the lens barrel

(Image credit: Future)

The focus distance limiter switch has three options; regular focusing, macro, and ‘S Macro’. To obtain that 2x magnification, you’ll need to be in the S Macro setting regardless if you are focusing manually or using autofocus. 

The image stabilization switch remained on for me the entire test. The L-Fn button can be assigned a control from the camera menu. Given that I switched a lot between manual focusing and focus stacking, I set this button to select ‘Focus Stacking On/Off’ to make the switch quicker. 

Slow precise macro work typically involves mounting a camera to a supporting sliding rail for micro adjustments and then focusing manually. However, the OM-1 and OM 90mm macro lens have allowed me to shoot handheld macro, with autofocus, more regularly than ever before. 

OM System 90mm macro lens from the side showing all lens buttons and switches

(Image credit: Future)

It’s the combination of powerful image stabilization that steadies hand movement (which is extreme when working closely) and intelligent autofocus (even for tiny subjects and close distances), together with the Focus Stacking computational mode (that can combine up to 15 images automatically at the push of a button to increase depth of field, which is essential), that has freed me to work handheld. 

Put simply, the camera and lens pairing has made light work of tricky macro photography subjects and is the most versatile system for field macro work where simplicity is often key, both photography and video. 

This lens is not a one trick pony, either. As a 180mm f/3.5 equivalent lens, it’s a decent portrait and sports lens, especially considering that snappy autofocus is on board. Heck, I’m partial to telephoto landscape photography, too, so I could see myself using this lens a lot if it lived with me.

The lens comes supplied with a decent-sized lens hood to eliminate flare, but the hood can be a little obtrusive when using the lens for close macro photography focus distances. 

Crucially, I've been very impressed with the image quality produced by the OM 90mm macro lens. There's no visible lens distortion, while detail is super sharp across the entire frame, even wide open at the maximum f/3.5 aperture. I’ve stopped down to f/5.6, for example, and seen little difference in sharpness from wide open. 

Bokeh (the quality of out-of-focus areas) is, for the most part, dreamy. There’s a smooth focus fall-off, and where there’s dappled background light and specular highlights, you’ll see rounded smooth bokeh (even when stopped down to f/5.6), with no real color fringing.

For close-focusing macro photos, bokeh is less appealing – you lose some of that smoothness – nothing unattractive, but the easiest way to describe it is as ‘busy’. Also, in-camera focus stacking is fallible – it's a computational mode after all – with regular evidence of haloing, depending on the subject and contrast.

All things considered, those are minor points, and I’ll finish by saying that I have just found my favorite macro photography lens. 

OM System 90mm F3.5 Macro IS PRO: Price and availability

The OM System 90mm F3.5 Macro IS PRO costs $1,499 / £1,299 / AU$2,249 which is undeniably a serious investment, but is justified especially given its long focal length. Common and less costly autofocus macro lenses for Micro Four Thirds are usually 30mm or 45mm in focal length, with 1x magnification.  

Then there are alternatives from Laowa that offer a 2x magnification, including the 50mm f/2.8 2x Ultra Macro APO lens. Compared to the OM 90mm macro, its focal length and minimum focus distance are around half, plus its manual focus only, but it only costs $399 / £429 (approximately AU$600).

OM System 90mm macro lens on the ground from above attached to the OM-1 camera

(Image credit: Future)

Should you buy the OM System 90mm F3.5 Macro IS PRO?

Buy it if...

You want to get in really, really close

The maximum magnification, which can be doubled when combined with a 2x teleconverter, is previously unheard of in a lens. The biggest challenge you may encounter is finding such tiny subjects to take pictures of in the first place!

You can pair it with the OM-1 camera

Many of the glowing things said in this lens review are in the context of it being paired with the OM-1 camera. The camera’s powerful features make shooting macro that much easier. I recommend the OM 90mm macro lens with the OM-1 camera. 

You want to simplify field macro photography

When paired with the OM-1 camera, you can take handheld macro photography to new heights. Image stabilization is essential to compose the shot, while automatic in-camera focus stacking takes on your post-production headaches. 

Don't buy it if...

You don’t need the ultra-macro capability

How much magnification do you really need? I say this because while it’s true you don’t need to use the full potential of the lens’ magnification, you do pay extra for the privilege over, say, a macro lens with 1x magnification. This lens is for super-keen macro photographers. 

You don’t have an OM-1 camera already

At the risk of repeating myself, the experience of the OM 90mm macro lens is greatly improved when it’s paired with the powerful OM-1 camera. Put those two together and the outlay is significant, considering you can get this kind of magnification for much less with alternative approaches. 

How I tested the OM System 90mm F3.5 Macro IS PRO

I paired the OM 90mm macro lens with the OM System OM-1 camera and excitedly headed to the garden in search of tiny subjects of interest, like fungi and insects. It’s a camera and lens pairing that I’ve had a decent length of time with and got a good feel for what’s possible, and the pleasure hasn’t worn off. 

While this is a lens review and not a camera review, I find myself naturally referring to how the camera makes life with the lens such a pleasure. The OM-1’s stacked sensor, image stabilization, intelligent autofocus, and powerful computational modes have made handheld ultra-high magnification macro photography entirely possible, the likes of which I couldn't achieve before without a camera support.

I’ve played around with manual focusing via the manual focus clutch, autofocus, taking the same macro image several times with adjustments to aperture, and the focus stacking, to check image quality. There’s more to the OM 90mm macro lens than macro, too – I’ve also taken portraits, shot sports, and landscapes, which are other scenarios that can suit this lens.

First tested April 2023

Timothy Coleman
Cameras editor

Tim is the Cameras editor at TechRadar. He has enjoyed more than 15 years in the photo video industry with most of those in the world of tech journalism. During his time as Deputy Technical Editor with Amateur Photographer, as a freelancer and consequently editor at Tech Radar, Tim has developed a deeply technical knowledge and practical experience with cameras, educating others through news, reviews and features. He’s also worked in video production for Studio 44 with clients including Canon, and volunteers his spare time to consult a non-profit, diverse stories team based in Nairobi. Tim is curious, a keen creative, avid footballer and runner, and moderate flat white drinker who has lived in Kenya and believes we have much to enjoy and learn from each other.