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OM SYSTEM OM-5 vs Panasonic LUMIX G9II

Every spec side by side, from each maker's published figures.

Better figure, where one is clearly better

OM SYSTEMOM-5PanasonicLUMIX G9II
Overview
ReleasedNovember 2022November 2023
Image and sensor
Camera typeMirrorlessMirrorless
Sensor formatFour ThirdsFour Thirds
Sensor typeLive MOSLive MOS
Sensor dimensions17.4 × 13 mm17.3 × 13 mm
Effective resolution20.4 MP25.21 MP
Largest image5184 × 38885776 × 4336
RAW recordingYesYes
Standard ISO range200–25600100–25600
Sensor detailApproximately 20.37 effective and 21.77 total megapixels in maker Japan table; UK rounds to 20.4 and 21.8. Japan image area 17.4×13 mm; UK gives 17.3×13 mmMaker Japan specifies 25.21 million effective and 26.52 million total pixels, marketed as 25.2 MP; 17.3 × 13 mm Live MOS. Native 4:3 stills 5776×4336; high-resolution composites 11552×8672 are separate from native resolution
Image formatsJPEG and 12-bit losslessly compressed ORF RAW; ordinary output 5184×3888. Handheld composite 50 MP JPEG/RAW; tripod composite 50 MP JPEG or 80 MP RAW developed with OM Workspace, not a single-shot 80 MP sensorJPEG and RAW; Fine/Standard JPEG and RAW+JPEG options
ISO detailManual ISO 200–25600, expanded LOW approximately 64 and 100; default Auto upper limit 6400 (maker Japan). Amateur Photographer calls values above 6400 extended, unlike the maker manual tableStandard stills ISO 100–25600; expanded ISO 50; video and V-Log have different ranges. Maker Japan states no Dual Native ISO
Image processorTruePic IX–
Lens and shooting
Lens mountMicro Four ThirdsMicro Four Thirds
StabilisationLens and sensor shiftLens and sensor shift
Maximum continuous burst30 fps75 fps
AutofocusSensor phase/contrast detection, 121 cross-type phase positions; face/eye detection and Starry Sky AF. No animal/vehicle recognition (Amateur Photographer)Phase Hybrid AF; current Japan table recognises humans, animals, cars, motorcycles, trains and aircraft. The last two extend the launch-era review descriptions and are not assumed launch features
ShutterMechanical 1/8000–60 seconds; electronic 1/32000–60 seconds; Bulb up to 30 minutes and Live Composite modesMechanical 60–1/8000 second and Bulb to approximately 30 minutes; electronic first curtain 60–1/2000; electronic 60–1/32000 with Bulb to approximately 60 seconds
Burst detailElectronic high approximately 30 fps and low 10 fps; mechanical high 10 fps and low 6 fps. Maker example buffers 18 RAW/20 JPEG at 30 fps, 149 RAW at mechanical 10 fps, with specified KIOXIA card and 12–40mm F2.8 PROFull-resolution electronic 75 fps AFS/MF with focus fixed; 60 or 20 fps AFS/AFC/MF. SH RAW/JPEG buffer 200 frames; mechanical 14 fps AFS/MF or 10 fps AFC, electronic first curtain 14/9 respectively. Normal RAW buffer at least 170 frames under maker conditions; pre-burst available, with heat-related restrictions
Stabilisation detailFive-axis sensor shift; CIPA up to 6.5 stops with 12–40mm F2.8 PRO at 40mm; Sync IS up to 7.5 with 12–100mm F4 IS PRO at 100mm and half-press stabilisation offMaker UK eight-stop B.I.S. with H-ES12060 at 60 mm, and 7.5-stop Dual I.S.2 with H-FSA14140 at 140 mm, under CIPA yaw/pitch conditions; electronic video stabilisation is separate
Flash–No built-in flash; external flash support and sync up to 1/250 second
Exposure controlsPASM, Live ND, HDR, focus stacking and multiple exposure; Live ND2–16 (Amateur Photographer), with mode, shutter, ISO and lens restrictions–
Video
Highest video resolution4096 × 2160 at 24 fps5760 × 4320 at 29.97 fps
Video detailInternal H.264 MOV C4K 4096×2160 at 24p approximately 237 Mbps; UHD 3840×2160 at 30/25/24p approximately 102 Mbps. Separate FHD high-speed 120 fps; Flat and OM-Log400 profiles. No fixed clip-duration limit, with card, battery and file-splitting restrictionsInternal 5760×4320 4:3 open-gate HEVC 4:2:0 10-bit up to 29.97p; 5728×3024 17:9 up to 59.94p; C4K up to 119.88p and Full HD up to 239.76p. ProRes 422/HQ supported through USB SSD with recording-mode/media restrictions; no ProRes RAW inferred from GH7. Maker V-Log claim 13+ stops, dropping to 12+ above 60 fps; Dynamic Range Boost excludes SH bursts and specified slow-shutter combinations. No built-in cooling fan (Amateur Photographer)
AudioBuilt-in stereo microphones; 48 kHz/16-bit or 96 kHz/24-bit audio; external 3.5 mm microphone socketStereo built-in microphone; high-resolution audio through compatible DMW-XLR1/DMW-XLR2; exact channel and format restrictions depend on recording mode
Screen and viewfinder
ViewfinderElectronicElectronic
Screen size3″3″
Screen dots1,037,0001,840,000
TouchscreenYesYes
Tilting screenYesYes
Display detailFully articulated touchscreen; UK 1.037 million dots, Japan rounds to 1.04 millionThree-inch 3:2 capacitive touchscreen, approximately 1.84 million dots; free-angle articulation (Panasonic UK), distinct from GH7's additional tilt frame
Viewfinder detailOLED approximately 2.36 million dots, approximately 100% coverage; 1.23–1.37× magnification with 50mm lens at infinity at −1 dioptre depends on finder style0.5-inch OLED, approximately 3.68 million dots, 100% coverage; approximately 1.6× magnification, 0.8× in 35 mm terms under maker's 50 mm-equivalent/infinity/−1 dioptre/4:3 conditions
Connections and design
Wi-FiYesYes
BluetoothYesYes
Battery life (maker's claim)310 photographs370 photographs
Body weight366 g575 g
Release detailJapan body and 14–150mm II kit on sale 18 November 2022, 12–45mm PRO kit 10 December. Earlier worldwide day unconfirmed, so month precision retainedMaker UK confirms November 2023 availability; September 2023 is the announcement, not substituted for first sale
Recording mediaOne SD/SDHC/SDXC slot, UHS-I and UHS-IITwo SD/SDHC/SDXC UHS-II slots including V90; dual-slot recording options; supported video can record to USB SSD
PortsUSB 2.0 Hi-Speed Micro-B; micro-HDMI Type D; 3.5 mm microphone and 2.5 mm remote sockets; hot shoeUSB-C 10 Gbps; full-size HDMI, 3.5 mm microphone/headphone and 2.5 mm remote sockets (Amateur Photographer)
Wireless connectionsWi-Fi b/g/n and Bluetooth Low Energy 4.2; location tagging from connected smartphone rather than built-in GPSWi-Fi 2.4 GHz 802.11b/g/n and 5 GHz 802.11a/n/ac; Bluetooth Low Energy 5.0; Japan channel ranges not assumed identical globally
Battery life detailBLS-50; standard 310 or low-power 660 CIPA shots with specified KIOXIA card, stabilisation on and no flash. Approximately 60 minutes JEITA video or 110 minutes with other operations disabledDMW-BLK22; current Japan CIPA 370 LCD/EVF shots with H-ES12060 and SD, or approximately 1300 in specified one-second power-save EVF mode. USB SSD approximately 310 shots. Older review claims of 390 shots are not substituted for the current maker table
ChargingUSB in-camera charging with camera off; behaviour depends on supply capabilityUSB in-camera charging; Japan table approximately 220 minutes with bundled USB AC adapter or 170 minutes with DMW-BTC15 adapter; optional DMW-BTC15 charger approximately 175 minutes
DimensionsApproximately 125.3×85.2×49.7 mm excluding protrusionsApproximately 134.3 × 102.3 × 90.1 mm, excluding protrusions
Weight detail366 g body only or 414 g with battery and card, excluding eyecup; photographed kit lens excludedMaker UK 575 g body only, 658 g with battery and SD card; lens excluded
MaterialsIP53 when paired with an IP53 lens, IPX1 with an IPX1 lens; not an immersion rating. Operating temperature −10 to 40°CDust/splash-resistant body (Panasonic UK); no waterproof rating inferred
In the box–Japan maker lists body cap, hot-shoe cover, battery-grip connector cover, shoulder strap, battery, USB AC adapter and USB A–C cable; regional contents may vary
ColoursBlack and silver–

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