OM SYSTEM OM-3 vs Panasonic LUMIX GH7

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

Only show differences

Better figure, where one is clearly better

Share comparison

OM-3 compared with LUMIX GH7

	OM SYSTEMOM-3	PanasonicLUMIX GH7
Overview
Released
Released	February 2025	July 2024
Image and sensor
Camera type
Camera type	Mirrorless	Mirrorless
Sensor format
Sensor format	Four Thirds	Four Thirds
Sensor type
Sensor type	Stacked BSI Live MOS	BSI CMOS
Sensor dimensions
Sensor dimensions	17.3 × 13 mm	–
Effective resolution
Effective resolution	20.4 MP	25.2 MP
Largest image
Largest image	5184 × 3888	5776 × 4336
RAW recording
RAW recording	Yes	Yes
Standard ISO range
Standard ISO range	80–102400	100–25600
Sensor detail
Sensor detail	UK specification rounds effective resolution to 20.4 MP and total to 22.9 MP; maker US press release specifies 20.37 effective and 22.93 total. 5184×3888 single-shot output, separate from 80 MP tripod or 50 MP handheld pixel-shift composites	Four Thirds-type backside-illuminated CMOS, 25.2 million effective and 26.5 million total pixels; native 4:3 stills 5776×4336. High-resolution composites 11552×8672 remain separate from native resolution
Image formats
Image formats	ORF RAW and JPEG; high-resolution modes combine eight exposures and can save composite RAW; moving subjects and capture conditions affect results	JPEG and RAW; Fine/Standard JPEG and RAW+JPEG choices
ISO detail
ISO detail	Maker UK published sensitivity range includes LOW, approximately ISO 80, through ISO 102400; default Auto upper limit ISO 25600. This headline range includes expanded settings, rather than implying ISO 80 is the native base sensitivity	Standard stills ISO 100–25600; expanded ISO 50; V-Log and other video profiles use different ranges. Maker V-Log claim 13+ stops at sensor output up to 60 fps and 12+ stops above 60 fps; no measured stills range inferred
Image processor
Image processor	TruePic X	–
Lens and shooting
Lens mount
Lens mount	Micro Four Thirds	Micro Four Thirds
Stabilisation
Stabilisation	Lens and sensor shift	Lens and sensor shift
Maximum continuous burst
Maximum continuous burst	120 fps	75 fps
Lens detail
Lens detail	Native Micro Four Thirds mount; Sync IS and fastest continuous tracking depend on compatible lenses; kit lens is excluded from body specifications	–
Autofocus
Autofocus	1053 cross-type sensor phase-detection and contrast positions; AI recognition for humans, birds, cats/dogs, motorsports, aircraft and trains; EV −8 to 19 at approximately ISO 100 with an f/1.2 lens. Subject type is selected manually (Amateur Photographer)	Phase Hybrid AF using phase and contrast detection; human, animal, car, motorcycle, train and aircraft recognition; −4 to 18 EV at ISO 100, f/2 and AFS under maker conditions; no automatic subject-type selection (Amateur Photographer)
Shutter
Shutter	Mechanical focal-plane 1/8000–60 seconds and Bulb up to 30 minutes; electronic high-speed modes have additional restrictions	Mechanical 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 detail
Burst detail	Electronic SH1 up to 120 fps with focus/exposure fixed; SH2 up to 50 fps tracking with specified compatible lenses, no slow shutter or flash. Maker example buffer at 120 fps is 88 RAW/90 large fine JPEG, versus 102/125 at 50 fps and 151/375 at 20 fps, with specified KIOXIA card and 12–40mm F2.8 PRO II. Mechanical approximately 6 fps	Full-resolution electronic 75 fps AFS/MF with focus fixed, 60 or 20 fps AFS/AFC/MF; pre-burst options at these speeds. Mechanical 14 fps AFS/MF or 10 fps AFC; electronic first curtain 14/9 respectively. SH buffer 190 RAW/JPEG frames; normal bursts 215 RAW with CFexpress or 200 with SD under maker conditions. Dynamic Range Boost does not operate during SH bursts
Stabilisation detail
Stabilisation detail	Five-axis sensor shift, CIPA 2024 up to 6.5 centre/5.5 corner stops with 12–45mm F4 PRO at 45mm; compatible Sync IS up to 7.5/6.5 with 12–100mm F4 IS PRO at 100mm and half-press stabilisation off	Five-axis sensor-shift B.I.S. and compatible Dual I.S.2, each maker rated 7.5 stops under CIPA yaw/pitch conditions; B.I.S. uses H-ES12060 at 60 mm, Dual I.S.2 H-FSA14140 at 140 mm. Electronic video IS is separate. Maker 7.5-stop figure retained over Digital Camera World's conflicting 6.5-stop specification
Flash
Flash	External hot-shoe flash support. Maker interface table lists a sync socket, while the read review's port discussion does not; no assumed connector shape	–
Exposure controls
Exposure controls	PASM, five saved custom modes, front colour/monochrome profile dial and CP button. Live ND to ND64; Live GND to GND8. Restrictions on mode, flash, ISO and shutter apply	–
Video
Highest video resolution
Highest video resolution	4096 × 2160 at 60 fps	5760 × 4320 at 29.97 fps
Video detail
Video detail	Internal C4K 4096×2160 or UHD 3840×2160 up to 60p; H.264 and HEVC MOV formats, OM-Log400, HLG and OM-Cinema profiles. FHD high-speed 240 fps is separate from 4K. External 12-bit RAW HDMI needs a recorder and disables internal recording. Maker thermal claim of 30 minutes at 40°C or no thermal time limit at 25°C applies specifically to 4K30 10-bit testing, not every mode	Internal 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. Internal ProRes RAW HQ/RAW and ProRes 422 options have format/media restrictions. High-resolution/ProRes/HFR modes retain temperature limits; maker's unlimited-recording claim is C4K/60p or lower and remains battery/media dependent. HDMI 8K is still-image playback only, not recorded video. ARRI LogC3 requires separately purchased DMW-SFU3A activation
Audio
Audio	Maker MOV settings include 48 kHz/16-bit and 96 kHz/24-bit; external 3.5 mm microphone and headphone connections	Stereo microphone; MOV LPCM up to 96 kHz/24-bit, built-in microphone limited to 48 kHz; optional DMW-XLR2 enables 32-bit float, with channel/sample-rate restrictions. Digital Camera World did not test the XLR2 adapter
Screen and viewfinder
Viewfinder
Viewfinder	Electronic	Electronic
Screen size
Screen size	3″	3″
Screen dots
Screen dots	1,620,000	1,840,000
Touchscreen
Touchscreen	Yes	Yes
Tilting screen
Tilting screen	Yes	Yes
Display detail
Display detail	Fully articulated three-inch touchscreen, approximately 1.62 million dots; connected port cables can restrict rotation (Amateur Photographer)	Three-inch 3:2 capacitive touchscreen, approximately 1.84 million dots and 100% coverage; tilt/free-angle articulation. Maker three-inch figure retained over Digital Camera World's conflicting 3.2-inch description
Viewfinder detail
Viewfinder detail	OLED approximately 2.36 million dots, 100% coverage, maximum 1.37× with 50mm lens at infinity and −1 dioptre depending on finder style; review figures near 0.68× are full-frame-equivalent magnification	0.5-inch OLED, approximately 3.68 million dots, 100% coverage; 1.6× optical magnification, equivalent to 0.8× in 35 mm terms, at maker's 50 mm/infinity/−1 dioptre/4:3 conditions
Connections and design
Wi-Fi
Wi-Fi	Yes	Yes
Bluetooth
Bluetooth	Yes	Yes
Battery life (maker's claim)
Battery life (maker's claim)	590 photographs	360 photographs
Body weight
Body weight	413 g (better)	721 g
Release detail
Release detail	Maker US press release confirms late February 2025 availability; earliest UK/worldwide retail day unconfirmed, so month precision retained. Press PDF's June upload path is not the release date	Maker UK specifies end of July 2024 availability, retained at month precision; Japan maker specifies 26 July 2024, qualified as that region's date
Recording media
Recording media	One SD/SDHC/SDXC slot with UHS-I and UHS-II support	One CFexpress Type B slot and one SD/SDHC/SDXC UHS-II slot, including V90; external USB SSD recording available for supported modes
Ports
Ports	USB 3 Type-C, Type D micro-HDMI, 3.5 mm microphone and headphone connections; maker launch release explicitly says wired remote operation is unsupported	USB-C 10 Gbps with charging/power supply, full-size HDMI Type A, 2.5 mm remote and 3.5 mm microphone/headphone sockets; flash-sync terminal doubles as TC IN/OUT through included BNC converter
Wireless connections
Wireless connections	Wi-Fi and Bluetooth Low Energy 5.2; optional RM-WR2 remote support; GPS tagging uses smartphone location, not an inferred built-in receiver	Wi-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 detail
Battery life detail	BLX-1; approximately 590 standard-mode shots or 1040 Quick Sleep shots with specified KIOXIA UHS-II card. Maker video figures 120 minutes CIPA or 190 with zoom and other operations disabled	DMW-BLK22; CIPA 360 LCD/EVF shots with SD or 330 with CFexpress, using H-ES12060. Specified one-second power-save EVF mode approximately 850 with SD or 750 with CFexpress
Charging
Charging	In-camera USB charging and USB Power Delivery bus power; charger not included, optional BCX-1 dual charger and F-5AC/F-7AC adapters	In-camera USB charging and power supply; supplied DC-type battery charger in Japan package
Dimensions
Dimensions	Approximately 139.3 × 88.9 × 45.8 mm, excluding protrusions	Approximately 138.4 × 100.3 × 99.6 mm, excluding protrusions
Weight detail
Weight detail	Approximately 413 g body only or 496 g including battery and memory card; photographed 12–45mm kit lens excluded	Maker 721 g body only, 805 g with battery and one SD card; lens excluded
Materials
Materials	Magnesium alloy, −10 to 40°C operation; IP53 or IPX1 performance depends on attached lens. Maker weather qualification excludes charging and HDMI connection, and is not an immersion rating	Dust/splash-resistant body; maker operating range −10 to 40°C with cold-temperature battery and compatible-lens restrictions; no waterproof rating inferred
In the box
In the box	–	Japan maker lists eyecup, hot-shoe cover, sync-terminal cover, battery, DC-type battery charger, TC IN/OUT BNC converter cable, shoulder strap and body cap; regional contents may vary
Colours
Colours	Silver-and-black body	–