Head to head · specs cited · drawn to scale
OM System OM-1 Mark II vs Panasonic Lumix GH5 II
Every spec below is quoted from the makers' official pages — where a figure isn't published we say so rather than guess. Sizes are drawn at true relative scale from published dimensions, and the bag-fit row is computed against our measured bag catalog.
The 3 biggest published differences
- EVF resolution: the GH5 II leads at Approx. 3.68 million dots vs the OM-1 II's Approx. 5.76M dots.
- Burst — electronic: the GH5 II leads at AFS/MF: H: 12 frames/sec; AFC: H: 7 frames/sec (Live View) vs the OM-1 II's Pro Capture SH1 approx. 120fps; SH2 approx. 50fps (213-frame RAW buffer at 120fps).
- In-body stabilisation: the OM-1 II leads at Up to 8.5 EV steps (Sync IS) vs the GH5 II's Image sensor shift type (5-axis / 6.5-stop); Dual I.S. (6.5-stop, Dual I.S. 2 compatible).
 OM-1 II Micro Four Thirds |  GH5 II Micro Four Thirds | |
|---|---|---|
| Overview | ||
| Type | Mirrorless | Mirrorless |
| Format | 4/3'' (Micro Four Thirds) | Micro Four Thirds (17.3 x 13.0 mm) |
| Lens mount | Micro Four Thirds | Micro Four Thirds |
| Released | —, not published | —, not published |
| Sensor & Image | ||
| Sensor type | Stacked BSI Live MOS | Live MOS sensor (17.3 x 13.0 mm) |
| Sensor size | 4/3'' (Micro Four Thirds) | Micro Four Thirds (17.3 x 13.0 mm) |
| Resolution (MP) | 20.4 | 20.33 megapixels effective / 21.77 megapixels total |
| In-body stabilisation | Up to 8.5 EV steps (Sync IS) | Image sensor shift type (5-axis / 6.5-stop); Dual I.S. (6.5-stop, Dual I.S. 2 compatible) |
| ISO range | LOW - 102400 (native/manual range) | Auto / 100 (Extended) / 200 / 400 / 800 / 1600 / 3200 / 6400 / 12800 / 25600 (Changeable to 1/3 EV step) |
| Autofocus & Speed | ||
| AF system | TTL phase difference detection + contrast detection, 1053 points / cross-type phase detection AF | Contrast AF system (DFD technology) |
| Subject detection | Aircrafts, Birds, Bullet trains, Cats, Dogs, Formula cars, Helicopters, Human, Motorcycles, Rally cars, Standard trains, Steam locomotives | Auto Detection (Face, Eye, Body, Animal) / Tracking / 225-Area / Zone / 1-Area+ / 1-Area / Pinpoint |
| Burst — mechanical | Approx. 10fps | AFS/MF: H: 12 frames/sec, M: 7 frames/sec (Live View); AFC: H: 9 frames/sec (Live View) |
| Burst — electronic | Pro Capture SH1 approx. 120fps; SH2 approx. 50fps (213-frame RAW buffer at 120fps) | AFS/MF: H: 12 frames/sec; AFC: H: 7 frames/sec (Live View) |
| Video | ||
| Max video | 4096x2160 (C4K) / 3840x2160 (4K) 60p | C4K 4096x2160 / 4K 3840x2160; Anamorphic 6K 4992x3744 (4:3) |
| Codecs / sampling | MOV (MPEG-4AVC/H.264), MOV (HEVC/H.265) | MOV: H.264/MPEG-4 AVC, H.265/HEVC; MP4: H.264/MPEG-4 AVC, H.265/HEVC |
| Recording limit | Unlimited | MP4 4K: continues past 4GB/96GB or 3hr4min by dividing files; MP4 FHD: continues past 4GB or 30 min by dividing files |
| Viewfinder & Screen | ||
| EVF resolution | Approx. 5.76M dots | Approx. 3.68 million dots |
| EVF magnification | Approx. 1.48x - 1.65x | Approx. 1.52x / 0.76x (35mm camera equivalent) with 50 mm lens at infinity, 4:3 aspect |
| Rear screen | 3.0 inch Vari-angle Touch LCD, approx. 1.62M dots | Free-angle, 3.0-inch (7.5cm), 3:2 aspect TFT LCD monitor with static touch control, Approx. 1.84 million dots |
| Body & Handling | ||
| Dimensions (W×H×D) | 134.8 × 91.6 × 72.7 mm | 138.5 × 98.1 × 87.4 mm |
| Weight (body) | 599 g | 727 g |
| Weather sealing | IP53 certified; freezeproof to -10°C | Dust and Splash Resistant: Yes; operating temperature -10C to 40C (14F to 104F) |
| Shutter durability | 400,000 shots | —, not published |
| Power & Storage | ||
| Battery life (CIPA) | 520 shots (using BLX-1) | Approx. 400 images, 1200 images (Power Save LVF mode) with H-ES12060 / DMW-BLK22 |
| Battery | BLX-1 Lithium-Ion Battery | Li-ion Battery Pack (7.2V, 2200mAh, 16Wh) / DMW-BLK22 |
| Card slots | SD Memory Card (SDHC, SDXC, UHS-I, UHS-II compatible) | Slot 1, Slot 2 (dual); SD/SDHC/SDXC, UHS-I/UHS-II UHS Speed Class 3, Video Speed Class 90 |
| Connectivity | ||
| USB | USB 3 Type C | SuperSpeed USB 3.1 Gen1 Type-C |
| Wireless | Wi-Fi and Bluetooth | Wi-Fi 2.4GHz (STA/AP) IEEE802.11b/g/n, 5GHz (STA) IEEE802.11a/n/ac; Bluetooth v4.2 (BLE) |
| HDMI | Micro connector (Type D) | HDMI TypeA |
| Price | ||
| Launch price | $1,999.99 (body, as listed) | —, not published |
| Size, to scale | ||
Front view, drawn at the same scale from each maker's published W×H (mm). | ||
| Smallest bag that fits | ||
| Body + standard zoom | Think Tank Mirrorless Mover 20 V2 Fits body only · View at B&H Photo Video | Think Tank Mirrorless Mover 25 V2 Fits body only · View at B&H Photo Video |
Sources
“4/3'' Stacked BSI Live MOS sensor, 20.4 Megapixels effective; Up to 8.5 EV steps image stabilization; 1053 points / cross-type phase detection AF; Pro Capture SH1 Approx. 120fps; From $1,999.99”
official · GH5 II specifications: Panasonic UK & Ireland (official specifications page) · accessed 2026-07-10
“Live MOS sensor (17.3 x 13.0 mm), 20.33 megapixels; Image sensor shift type (5-axis / 6.5-stop); AF mode: Auto Detection (Face, Eye, Body, Animal) / Tracking / 225-Area”
Spec values are the manufacturers' published figures, compared factually — we don't rank cameras. Fit verdicts are planning estimates from published interior dimensions, not guarantees. See methodology.
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