Head to head · specs cited · drawn to scale

OM System OM-5 vs Panasonic Lumix GH6

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

OM System OM-5 OM-5 Micro Four Thirds
Panasonic Lumix GH6 GH6 Micro Four Thirds
Overview
Type MirrorlessMirrorless
Format 4/3'' (Micro Four Thirds), 17.3 x 13.0mm4/3'' (Micro Four Thirds), 17.3 x 13.0 mm
Lens mount Micro Four ThirdsMicro Four Thirds
Released —, not published—, not published
Sensor & Image
Sensor type 4/3'' Live MOS sensorLive MOS sensor (without low-pass filter)
Sensor size 4/3'' (Micro Four Thirds), 17.3 x 13.0mm4/3'' (Micro Four Thirds), 17.3 x 13.0 mm
Resolution (MP) 20.4 Megapixels (effective); 21.8 Megapixels (full)25.21 megapixels (effective); 26.52 megapixels (total)
In-body stabilisation Up to 7.5 EV steps (Sync IS); Up to 6.5 EV steps (Sensor shift)Body I.S.: 5-axis / 7.5-stop; Dual I.S. 2: 7.5-stop
ISO range ISO LOW - 25600Auto / 50 (Extended ISO) / 100-25600 (Normal)
Autofocus & Speed
AF system TTL phase difference detection system, contrast detection systemContrast AF system with DFD Technology
Subject detection 121 points (all cross type); Eye Detect AF; predictive AFAutomatic human/face/eye/animal detection
Burst — mechanical Approx. 10fps (H); 6fps (L)14 frames/sec (AFS/MF), 8 frames/sec (AFC)
Burst — electronic Approx. 30fps (silent, H); Approx. 10fps (L)SH75: 75 frames/sec (AFS/MF)
Video
Max video 4096 x 2160 (C4K) / 24p; 3840 x 2160 (4K) / 30p5760x4320 (5.8K, 4:3) at 29.97p
Codecs / sampling MOV (MPEG-4AVC/H.264)H.264/MPEG-4 AVC, H.265/HEVC, Apple ProRes
Recording limit Up to card capacityMotion pictures divided if exceeding 96 GB or 3 hours 4 minutes
Viewfinder & Screen
EVF resolution 2.360K dotsOLED Live View Finder, approx. 3.68 million dots
EVF magnification Max. 1.37x with a 50mm lensApprox. 1.52x / 0.76x (35mm camera equivalent)
Rear screen 3.0'' (3:2), 1037K dots, Vari-angle LCD - Touch PanelTilt free-angle, 3.0-inch, 3:2 aspect, approx. 1.84 million dots
Body & Handling
Dimensions (W×H×D) 125.3 × 85.2 × 49.7 mm138.4 × 100.3 × 99.6 mm
Weight (body) 414 g823 g
Weather sealing IP53 (operating temperature -10 - 40 C)Yes. *Dust and Splash Resistant does not guarantee that damage will not occur
Shutter durability —, not published—, not published
Power & Storage
Battery life (CIPA) 310 shotsApprox. 330 images (CFexpress with H-ES12060)
Battery BLS-50 Lithium-Ion BatteryLi-ion Battery Pack (7.2V, 2200mAh, 16Wh)
Card slots Single SD (UHS-II compatible)Slot 1: CFexpress Card (CFexpress Type B); Slot 2: SD / SDHC / SDXC Memory Card
Connectivity
USB USB 2.0 High SpeedUSB Type-C (SuperSpeed USB 10Gbps (USB 3.2 Gen2))
Wireless Wi-Fi and Bluetooth presentWi-Fi 2.4GHz (IEEE802.11b/g/n), 5GHz; Bluetooth v5.0 (BLE)
HDMI Micro connector (Type D)HDMI Type A
Price
Launch price —, not published—, not published
Size, to scale
OM-5125.3×85.2×49.7GH6138.4×100.3×99.6

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 Retrospective 4 V2.0 Fits
body only · View at B&H Photo Video

Sources

official · OM-5 specifications: OM System (official specifications page) · accessed 2026-07-10
“4/3'' Live MOS sensor, 20.4 Megapixels effective, 4:3 / 17.3 x 13.0mm; Sensor shift, Up to 7.5 EV steps Sync IS; TTL phase difference detection system, contrast detection system, 121 points; EVF 2.360K dots, Max. 1.37x with a 50mm lens; BLS-50 Lithium-Ion Battery, 310 shots”
official · GH6 specifications: Panasonic (official specifications page) · accessed 2026-07-10
“Live MOS sensor (17.3 x 13.0 mm); effective 25.21 megapixels; Body I.S. 5-axis / 7.5-stop; Contrast AF system with DFD Technology; max resolution 5760x4320 (5.8K, 4:3) at 29.97p; codecs H.264/MPEG-4 AVC, H.265/HEVC, Apple ProRes; Slot 1 CFexpress Type B, Slot 2 SD”

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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