OM SYSTEM OM-5 vs OM SYSTEM OM-5 Mark II

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OM-5 compared with OM-5 Mark II

	OM SYSTEMOM-5	OM SYSTEMOM-5 Mark II
Overview
Released
Released	November 2022	July 2025
Image and sensor
Camera type
Camera type	Mirrorless	Mirrorless
Sensor format
Sensor format	Four Thirds	Four Thirds
Sensor type
Sensor type	Live MOS	Live MOS
Sensor dimensions
Sensor dimensions	17.4 × 13 mm	17.4 × 13 mm
Effective resolution
Effective resolution	20.4 MP	20.4 MP
Largest image
Largest image	5184 × 3888	5184 × 3888
RAW recording
RAW recording	Yes	Yes
Standard ISO range
Standard ISO range	200–25600	200–25600
Sensor detail
Sensor detail	Approximately 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 mm	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
Image formats	JPEG 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 sensor	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
ISO detail	Manual 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 table	Manual ISO 200–25600, expanded LOW approximately 64 and 100; default Auto upper limit 6400 (maker Japan)
Image processor
Image processor	TruePic IX	TruePic IX
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	30 fps	30 fps
Autofocus
Autofocus	Sensor phase/contrast detection, 121 cross-type phase positions; face/eye detection and Starry Sky AF. No animal/vehicle recognition (Amateur Photographer)	Hybrid sensor phase/contrast, 121 cross-type phase positions; face/eye recognition and Starry Sky AF, without animal/vehicle subject recognition (both reviews)
Shutter
Shutter	Mechanical 1/8000–60 seconds; electronic 1/32000–60 seconds; Bulb up to 30 minutes and Live Composite modes	Mechanical 1/8000–60 seconds; electronic 1/32000–60 seconds; Bulb and Live Composite modes
Burst detail
Burst detail	Electronic 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 PRO	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
Stabilisation detail	Five-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 off	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
Exposure controls	PASM, Live ND, HDR, focus stacking and multiple exposure; Live ND2–16 (Amateur Photographer), with mode, shutter, ISO and lens restrictions	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
Highest video resolution	4096 × 2160 at 24 fps	4096 × 2160 at 24 fps
Video detail
Video detail	Internal 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 restrictions	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
Audio	Built-in stereo microphones; 48 kHz/16-bit or 96 kHz/24-bit audio; external 3.5 mm microphone socket	Internal stereo microphones, external 3.5 mm microphone input; 48 kHz/16-bit or 96 kHz/24-bit recording
Screen and viewfinder
Viewfinder
Viewfinder	Electronic	Electronic
Screen size
Screen size	3″	3″
Screen dots
Screen dots	1,037,000	1,037,000
Touchscreen
Touchscreen	Yes	Yes
Tilting screen
Tilting screen	Yes	Yes
Display detail
Display detail	Fully articulated touchscreen; UK 1.037 million dots, Japan rounds to 1.04 million	Fully articulated touchscreen; UK table 1.037 million dots, Japan rounds to 1.04 million
Viewfinder detail
Viewfinder detail	OLED approximately 2.36 million dots, approximately 100% coverage; 1.23–1.37× magnification with 50mm lens at infinity at −1 dioptre depends on finder style	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
Wi-Fi	Yes	Yes
Bluetooth
Bluetooth	Yes	Yes
Battery life (maker's claim)
Battery life (maker's claim)	310 photographs	310 photographs
Body weight
Body weight	366 g (better)	370 g
Release detail
Release detail	Japan body and 14–150mm II kit on sale 18 November 2022, 12–45mm PRO kit 10 December. Earlier worldwide day unconfirmed, so month precision retained	Maker US release confirms early July 2025 retail; Japan 18 July local date. Earliest worldwide day unconfirmed, so month precision retained
Recording media
Recording media	One SD/SDHC/SDXC slot, UHS-I and UHS-II	One SD/SDHC/SDXC slot, UHS-I and UHS-II
Ports
Ports	USB 2.0 Hi-Speed Micro-B; micro-HDMI Type D; 3.5 mm microphone and 2.5 mm remote sockets; hot shoe	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
Wireless connections	Wi-Fi b/g/n and Bluetooth Low Energy 4.2; location tagging from connected smartphone rather than built-in GPS	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
Battery life detail	BLS-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 disabled	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
Charging	USB in-camera charging with camera off; behaviour depends on supply capability	In-camera USB charging with power off; USB power supply supported, but no USB Power Delivery. Charger not supplied
Dimensions
Dimensions	Approximately 125.3×85.2×49.7 mm excluding protrusions	Approximately 125.3×85.2×52 mm excluding protrusions (maker Japan and US launch); UK table gives conflicting 49.7 mm depth
Weight detail
Weight detail	366 g body only or 414 g with battery and card, excluding eyecup; photographed kit lens excluded	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
Materials	IP53 when paired with an IP53 lens, IPX1 with an IPX1 lens; not an immersion rating. Operating temperature −10 to 40°C	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
Colours	Black and silver	Black, silver and sand beige; kit availability varies by region