What are the smallest, most portable mirrorless cameras?

May 30, 2022

If you’re looking for the best small and compact mirrorless camera, then you’ve come to the right place. When mirrorless cameras first came out, particularly under the Micro Four Thirds banner, a big selling point was their relatively small size and weight compared to DSLRs, making them ideal for travel. Now, however, this promise seems to have been forgotten; in the rush to squeeze in cutting-edge technology, some of the latest full-frame mirrorless models, particularly at the higher end, are as bulky as a lot of their mirrored brethren.

Fortunately, there are still a lot of relatively small and light mirrorless models to choose from if you don’t need full frame. The cameras we’ve chosen below are ideal for carrying around on essential journeys and travel, without getting backache or needing a rucksack, unless you wanted to carry additional lenses.

Combining photography with another activity makes a small camera with a decent-sized sensor preferable to a bulky full-frame DSLR, so in this post we’ve picked our favourite APS-C and Micro Four Thirds cameras to carry everywhere.

Fujifilm X-T30 Mark II in hand, JW

Fujifilm X-T30 Mark II in hand, body only

Lightest Fujifilm: Fujifilm X-T30 Mark II

  • Launch price: £769 (body only)
  • Sensor: 26.1MP APS-C X-Trans CMOS 4
  • Lens mount: Fujifilm X-Mount
  • ISO: 160-12,800 (80-51,200 extended)
  • Max video resolution: 4K
  • Viewfinder: 2.36M-dot
  • Display: 3in, 1.62M-dot two-way tilting LCD
  • Dimensions: 118.4×82.8×46.8mm 
  • Weight: 378g (with battery and memory card)

The Fujifilm X-T30 Mark II is basically a smaller, lighter and more affordable alternative to the Fujifilm X-T3 and X-T4 as it features the same 26.1MP 4th generation X-Trans CMOS sensor and processor. There are also 2.16M phase detection pixels covering 100% of the frame and up to 425 user-selectable AF points.

Shutter speed and exposure compensation dials help give the X-T30 II old-school looks and handling designed to appeal to traditionalists who will love the Fujifilm’s range of X-Mount lenses that feature an aperture ring.

Along with that traditional appearance, the X-T30 II has some great modern technology, including a responsive tilting touch-screen, fast autofocusing and an excellent 0.39-inch 2.36M-dot OLED viewfinder.

Although it’s not weather-sealed, its magnesium alloy construction gives the X-T30 II a solid feel and its handling is generally very good aside from the location of the Q button which means it’s a bit too easy to accidentally activate the quick menu.

Fujifilm X-S10 in hand (Andy Westlake)

Fujifilm X-S10 in hand, Photo: Andy Westlake

Fujifilm X-S10

  • Launch price: £949 (body only)
  • Sensor: 26.1MP APS-C X-Trans CMOS 4
  • Lens mount: Fujifilm X-Mount
  • ISO: 160-12,800 (80-51,200 extended)
  • Max video resolution: 4K
  • Viewfinder: 2.36M-dot
  • Display: 3in, 1.04M-dot vari-angle LCD
  • Dimensions: 126.0 x 85.1 x 65.4mm 
  • Weight: 465g (with battery and memory card)

The Fujifilm X-S10 is the Fujifilm APS-C format camera for photographers who don’t want traditional exposure controls. It has much of the same technology as the X-T30 (and X-T3 and X-T4) including the 26.1Mp X-Trans CMOS 4 sensor and X Processor 4, but there’s an exposure mode dial instead of the shutter speed dial and the aperture can be adjusted either via a lens ring or a command dial on the camera body.

In a step up from the X-T30, the X-S10 has a vari-angle touchscreen and a very effective in-body image stabilisation (IBIS) system that enables up to 6 stops shutter speed compensation.

As an X-series camera, the X-S10 benefits from Fujifilm’s superb colour science and there’s an extensive collection of Film Simulation modes that can be used to give JPEGs and videos colours, tones and contrast to suit the subject, shooting conditions and photographer’s preference.

As we’d expect from Fujifilm, video can be recorded at up 4K resolution at 30fps with no additional crop while Full HD video can be recorded at up to 240fps.

Olympus OM-D E-M10 Mark IV (Andy Westlake)

The compact Olympus OM-D E-M10 Mark IV in hand, Photo: Andy Westlake

Lightest Olympus: Olympus OM-D E-M10 Mark IV

  • Launch price: £699 (body only)
  • Sensor: 20.3MP Four Thirds Type Live MOS
  • Lens mount: Micro Four Thirds
  • ISO: 80-25,60
  • Max video resolution: 4K
  • Viewfinder: 2.36M-dot
  • Display: 3in, 1.04M-dot two-way tilting LCD
  • Dimensions: 121.7 x 84.4 x 49mm 
  • Weight: 383g (with battery and memory card)

As a Micro Four Thirds camera, the Olympus OM-D E-M10 Mark IV has a smaller than APS-C format sensor, which gives it an advantage for size and weight. Indeed, with the Olympus 14-42mm F3.5-5.6 EZ lens mounted, it could easily pass for a compact camera.

The sensor size brings a 2x focal length multiplication factor making the 14-42mm lens produce framing like a 28-84mm lens on a full-frame camera. That’s a nice everyday option.

In a key difference from the Olympus E-M5 Mark III above it in the Olympus line-up, the E-M10 Mark IV doesn’t have phase detection autofocusing and relies on contrast detection alone. This is pretty dependable for still and slow-moving subjects, but it’s not ideal for sport and action photography.

Despite its entry-level status, the E-M10 IV has Olympus’s excellent Live Time and Live Composite modes, which take the sweat out of long exposure images, with Live Composite mode being especially useful for light painting, traffic trail and firework images.

There’s also a very good image stabilisation system, a long list of Art Filters, which are of use for stills and video, and a screen that can flip through 180° to be visible from in front of the camera.

The Panasonic Lumix G100 really is small in hand

The compact Panasonic Lumix G100 in hand, Photo: Richard Sibley

Designed for vlogging: Panasonic Lumix G100

  • £569 with 12-32mm lens, £399 body only
  • Sensor: 20.3MP Four Thirds sensor
  • Lens mount: Micro Four Thirds
  • ISO sensitivity: ISO100-25,600 (extended)
  • Screen: 3inch 1.84M-dot vari-angle touchscreen
  • Viewfinder: 3.68M-dot 0.73x magnification electronic viewfinder
  • Video: 4K video recording
  • Dimensions: 115.6 x 82.5 x 54.2mm
  • Weight: 345g (with battery and memory card)

Designed for vlogging and video recording, the Panasonic Lumix G100 is a compact, neat little camera, that also represents excellent value for money, particularly body only if you have a lens available. This camera is particularly lightweight, but features a high-resolution electronic viewfinder, as well as a high-resolution 3inch vari-angle touchscreen.

The Micro Four Thirds camera features a 20MP image sensor, and gives good image quality, with great looking stills images. As part of the Micro Four Thirds system, there are a wide range of Micro Four Thirds lenses to choose from, including budget options, as well as premium optics.

The camera records 4K video, and the screen can be turned forwards to use as a selfie screen for vlogging, although the crop is worth noting, particularly if video is you main focus.

The battery life is a little on the short side as well, so packing a spare charger, or a portable power bank is definitely recommended, although this could be said for some of the other mirrorless cameras here also.

Smallest mirrorless: the Panasonic Lumix GX80

The smallest mirrorless, the Panasonic Lumix GX80 with 12-32mm lens

Smallest: Panasonic Lumix GX80

  • Launch price: £509 (body only)
  • Sensor: 16MP Four Thirds Live MOS
  • Lens mount: Micro Four Thirds
  • ISO sensitivity: ISO100 – 25,600 (extended)
  • Screen: 1.04M-dot 3-inch tilting touchscreen
  • Viewfinder: 2.76M-dot EVF (16:9 aspect ratio)
  • Video: 4K 25fps; Full HD 50fps
  • Dimensions: Approx 121 x 71 x 32mm 
  • Weight: 430g inc battery and card

Panasonic’s GX80 is another Micro Four Thirds camera that can hide amongst compact cameras and go unnoticed. Inside it has a 16MP Four Thirds type CMOS sensor with a standard sensitivity range of ISO 200-25,600 that can be expanded down to ISO 100.

Unlike the other cameras in this buyer’s guide, the GX80 has a rectangular rangefinder-like design with the viewfinder in the left corner of its body, and this makes it one of the smallest cameras here. You can also pair it with the tiny 12-32mm lens, or any number of other compact Micro Four Thirds lenses.

The GX80 packs a couple of features that are unique to Panasonic. For example, the 4K Photo mode enables you to shoot at 30fps the extract 8MP images from the footage with ease in-camera. It’s great for capturing split-second moments like a water splash or a fleeting facial expressions.

There’s also 4K Post-focus mode in which the camera shoots a series of images at different focus distances. You can then select where you want the focus to be with a tap on the screen post-capture.

Like the Olympus E-M10 IV, the GX80 uses contrast detection for autofocusing and it’s pretty snappy, even coping quite well with low light and moving subjects.

Panasonic’s superb Dual IS system which corrects for camera shake with 5-axis in-body image stabilisation working with lens IS.

Nikon's smallest mirrorless, the Nikon Z50 in hand with lens, Photo: Michael Topham

Nikon Z50 in hand with lens, Photo: Michael Topham

Nikon Z 50

  • Launch price: £849 (body only)
  • Sensor: 20.8MP APS-C CMOS
  • Lens mount: Nikon Z
  • ISO: ISO 100-51,200; expands to 204,800
  • Max video resolution: 4K at 30fps and Full-HD at 120fps
  • Viewfinder: 0.39-inch 2.3M-dot OLED
  • Display: 3.2–inch 1.04M-dot tilting touchscreen
  • Dimensions: 126.5 x 93.5 x 60mm 
  • Weight: 450g (with battery and memory card)

The Nikon Z50 is the first (and so far only) of Nikon Z-series of mirrorless cameras to feature an APS-C format rather than full-frame sensor. However, it has the same mount as Nikon’s other mirrorless cameras, which means it can use both full-frame and APS-C (DX) format lenses.

Nikon opted for a 20.9-million-pixel sensor and Expeed 6 processing engine for the Z50. This combination enables a native sensitivity range of ISO 100-51,200 (expandable to ISO 204,800) and a maximum continuous shooting rate of 11fps with continuous autofocusing and exposure metering.

The hybrid AF system uses both contrast and phase detection and offers a total of 209 phase detection points covering the majority of the sensor. It’s a dependable performer that works well with still and moving subjects.

There’s no in-body stabilisation, but there’s Vibration Reduction (VR) built into Nikon’s two APS-C format Z-mount lenses (more are in the pipeline).

Like the rest of the Z-series, the Nikon Z50’s control layout and user interface are very well-thought, making it a delight to use. At 3.2-inches, the screen on the back of the camera is the largest in this list and it’s very responsive to touch, giving an intuitive way of controlling the camera. It can also be tilted down through 180° for viewing from in front of the camera.

Canon EOS M50 Mark II (AW/RS)

Canon EOS M50 Mark II in white, with lens

Canon EOS M50 II

  • Launch price: £539.99 (body only)
  • Sensor: 24.1MP Dual Pixel CMOS sensor
  • Lens mount: EF-M
  • ISO: 100-25,600 expandable to 51,200
  • Max video resolution: 4K
  • Viewfinder: 0.39-inch, 2.36M-dot EVF
  • Display: Vari-angle 3-inch, 1.04M-dot LCD
  • Focusing: Up to 3975 phase-detection AF points
  • Dimensions: 116.3 x 88.1 x 58.7mm 
  • Weight: 387g (including battery and memory card)

The Canon EOS M50 II is a minor update to the original M50, but it delivers the specification and performance that enthusiasts would expect from a small camera, with a nicely designed camera body that makes it feel like a mini-DSLR.

It features a 24.1 Mp APS-C format sensor paired with the Digic 8 processing engine to enable a native sensitivity range of ISO 100-25,600, continuous shooting at up to 10fps (frames per second) and 4K video-recording capability.

Despite the 1.6x crop applied to 4K video, but perhaps thanks to its vari-angle screen and excellent touch-control, the Canon M50 has been very popular camera amongst vloggers. Stills photographers will also appreciate the built-in viewfinder and snappy phase detection focusing.

Looking very much like a mini-Canon DSLR, the M50 II weighs just 387g and its mode dial has the enthusiast’s favourite PASM options as well as Scene Intelligent Auto, Creative Assist and Scene for novice photographers. Helpfully, the interface can be switched between Guided and Standard mode to suite these different audiences.

Nb: With the release of Canon’s APS-C RF-mount cameras, the future of EOS M cameras is in doubt.

Canon EOS M6 Mark II with lens and optional EVF

Canon EOS M6 Mark II with lens and optional EVF

Canon EOS M6 Mark II

  • Launch price: £869.99 (body only)
  • Sensor: 32.5MP Dual Pixel CMOS sensor
  • Lens mount: EF-M
  • ISO: 100-25,600 expandable to ISO 51,200
  • Max video resolution: 4K
  • Viewfinder: optional external viewfinder EVF-DC2
  • Display: Tiltable 3-inch, 1.04M-dot LCD
  • Focusing: Up to 143 phase-detection AF points
  • Dimensions: 119.6 x 70.0 x 49.2mm 
  • Weight: 408g (body only)

Canon used the same 32.5Mp APS-C format Dual Pixel CMOS sensor for the M6 Mark II as is in the Canon 90D DSLR. The chip is also paired with the Digic 8 processing engine to give a maximum shooting rate of 14fps that can be maintained for up to 23 raw files or 54 JPEGs with continuous focusing.

Combine that fast-shooting capability with the M6 II’s excellent 143-point phase detection AF system, which copes extremely well with low light, and you have a versatile mirrorless camera.

Unlike the M50 and M50 II, which has a vari-angle screen, the M6 II has a screen that can only be tilted up or down. However, there’s no additional crop applied to 4K video which means that movies have the same angle of view as stills.

Canon decided to make a viewfinder optional with the M6 II. That means that there isn’t one built in but it is compatible with Canon’s EVF-DFC2. This has a 0.39-inch 2.36-miliion dot display and connects via the camera’s hotshoe. It’s a worthwhile addition but it bumps up the cost and size of this superb little camera. Without the optional viewfinder, this is a very compact camera, and one of the lighter models.

Nb: With the release of Canon’s APS-C RF-mount cameras, the future of EOS M cameras is in doubt.

Further reading

What are the best mirrorless cameras you can buy?
Find your perfect camera and lens with our buying guides

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