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OM SYSTEM OM-5 Mark II · Maker front photograph with 12–45mm F4 PRO kit lens; specifications and weights exclude lens
OM SYSTEM · OM
OM-5 Mark II
A 20.4-megapixel Micro Four Thirds mirrorless camera with sensor stabilisation, a deeper grip, USB-C and direct access to computational photography modes.
- Type
- Mirrorless
- Sensor
- Four Thirds
- Megapixels
- 20.4
- Lens
- Micro Four Thirds
- Video
- 4096 × 2160 at 24 fps
- Body weight
- 370 g
What reviewers say
Both praise the compact weather-resistant system, effective stabilisation and pleasing photographs, while seeing little image-quality improvement over the OM-5. Amateur Photographer particularly likes the revised grip and menus but reports hiss from its sample's internal microphones and artefacts with moving subjects in composite modes. Photography Blog finds the control changes useful but regards the sensor, autofocus and video update as modest. Both note the absence of animal and vehicle subject recognition.
Specifications
Report a wrong or missing specImage and sensor
- Camera type
- Mirrorless
- Sensor format
- Four Thirds
- Sensor type
- Live MOS
- Sensor dimensions
- 17.4 × 13 mm
- Effective resolution
- 20.4 MP
- Largest image
- 5184 × 3888
- RAW recording
- Yes
- Standard ISO range
- 200–25600
- Sensor detail
- Maker Japan specifies approximately 20.37 effective and 21.77 total megapixels, rounded to 20.4 and 21.8 in UK table. Japan gives 17.4×13 mm image area; UK gives 17.3×13 mm
- Image formats
- JPEG and 12-bit losslessly compressed ORF RAW; ordinary output 5184×3888. Tripod composite RAW 10368×7776 needs OM Workspace for 80 MP development; handheld composite 50 MP, rather than an 80 MP single-shot sensor
- ISO detail
- Manual ISO 200–25600, expanded LOW approximately 64 and 100; default Auto upper limit 6400 (maker Japan)
- Image processor
- TruePic IX
Lens and shooting
- Lens mount
- Micro Four Thirds
- Stabilisation
- Lens and sensor shift
- Maximum continuous burst
- 30 fps
- Autofocus
- Hybrid sensor phase/contrast, 121 cross-type phase positions; face/eye recognition and Starry Sky AF, without animal/vehicle subject recognition (both reviews)
- Shutter
- Mechanical 1/8000–60 seconds; electronic 1/32000–60 seconds; Bulb and Live Composite modes
- Burst detail
- Electronic 30 fps fixes focus/exposure at first frame; approximately 10 fps electronic tracking and 6 fps mechanical. Maker Japan example 30 fps buffer 19 RAW/21 JPEG with specified KIOXIA card and 12–40mm F2.8 PRO II; UK examples differ
- Stabilisation detail
- Five-axis sensor shift; maker CIPA 2024 up to 6.5 centre/5.5 corner stops with 12–45mm F4 PRO at 45mm. Sync IS up to 7.5/6.5 with 12–100mm F4 IS PRO at 100mm and half-press IS off
- Exposure controls
- PASM and computational-photography CP button; Live ND2–16, focus stacking, HDR and multiple exposures; mode, ISO, shutter, flash and compatible-lens restrictions apply
Video
- Highest video resolution
- 4096 × 2160 at 24 fps
- Video detail
- Internal C4K 4096×2160 at 24p; UHD 3840×2160 at 30/25/24p; H.264 MOV, 8-bit recording (Amateur Photographer). FHD high-speed 120 fps is separate; OM-Log400 and OM-Cinema1/2 profiles
- Audio
- Internal stereo microphones, external 3.5 mm microphone input; 48 kHz/16-bit or 96 kHz/24-bit recording
Screen and viewfinder
- Viewfinder
- Electronic
- Screen size
- 3″
- Screen dots
- 1,037,000
- Touchscreen
- Yes
- Tilting screen
- Yes
- Display detail
- Fully articulated touchscreen; UK table 1.037 million dots, Japan rounds to 1.04 million
- Viewfinder detail
- OLED approximately 2.36 million dots, approximately 100% coverage; maximum 1.37× with 50mm lens at infinity at −1 dioptre depends on finder style
Connections and design
- Wi-Fi
- Yes
- Bluetooth
- Yes
- Battery life (maker's claim)
- 310 photographs
- Body weight
- 370 g
- Release detail
- Maker US release confirms early July 2025 retail; Japan 18 July local date. Earliest worldwide day unconfirmed, so month precision retained
- Recording media
- One SD/SDHC/SDXC slot, UHS-I and UHS-II
- Ports
- USB 2.0 Hi-Speed Type-C without USB PD, micro-HDMI Type D, 3.5 mm microphone and 2.5 mm remote socket (maker Japan). UK USB 3 heading does not establish USB 3 transfer speed
- Wireless connections
- Wi-Fi b/g/n and Bluetooth Low Energy 5.2 (maker Japan); UK Bluetooth 4.2 table conflicts. Smartphone location tagging, rather than built-in GPS
- Battery life detail
- BLS-50; 310 standard or 640 low-power CIPA shots with specified KIOXIA card. Approximately 60 minutes CIPA video or 100 minutes with other operations disabled; recording limited by card, battery and conditions
- Charging
- In-camera USB charging with power off; USB power supply supported, but no USB Power Delivery. Charger not supplied
- Dimensions
- Approximately 125.3×85.2×52 mm excluding protrusions (maker Japan and US launch); UK table gives conflicting 49.7 mm depth
- Weight detail
- Maker Japan 370 g body only or 418 g with battery/card and without eyecup; UK body-only table gives conflicting 366 g. Photographed kit lens excluded
- Materials
- IP53 with specified IP53 lens, IPX1 with IPX1 lens; weather qualification excludes charging and HDMI. Operation −10 to 40°C; not an immersion rating
- Colours
- Black, silver and sand beige; kit availability varies by region
Pros and cons
Pros
- Qualified IP53 weather resistance
- Handheld pixel-shift and Live ND modes
- USB-C charging and updated menus
Cons
- No animal or vehicle subject-recognition autofocus
- One SD slot
- Internal video limited to 8-bit
Closest rivals
Model | Type | Sensor | Megapixels | Lens | Video | Body weight | Released |
|---|---|---|---|---|---|---|---|
| Mirrorless | Four Thirds | 20.3 | Micro Four Thirds | 3840 × 2160 at 30 fps | 478 g | Feb 2025 | |
| Mirrorless | Four Thirds | 20.4 | Micro Four Thirds | 4096 × 2160 at 60 fps | 413 g | Feb 2025 | |
| Mirrorless | Four Thirds | 25.2 | Micro Four Thirds | 5760 × 4320 at 29.97 fps | 721 g | Jul 2024 |
Sources
- explore.omsystem.com/gb/en/om-5-mark-ii
- jp.omsystem.com/product/dslr/om-omd/om/om5mk2/spec.html
- jp.omsystem.com/product/dslr/om-omd/om/om5mk2/index.html
- learnandsupport.getolympus.com/sites/default/files/media/files/2025/06/OM-5_Mar…
- photographyblog.com/reviews/om_system_om_5_mark_ii_review
- amateurphotographer.com/review/om-system-om-5-mark-ii-review
Photo: Maker front photograph with 12–45mm F4 PRO kit lens; specifications and weights exclude lens
- OM System OM-5 Mark II, front body view in Silver: Official maker product gallery photograph; Silver body without lens
- OM System OM-5 Mark II, side view showing connection covers in Silver: Official maker product gallery photograph; Silver body without lens
- OM System OM-5 Mark II, rear view in Silver: Official maker product gallery photograph; Silver body without lens
- OM System OM-5 Mark II, top view in Silver: Official maker product gallery photograph; Silver body without lens
