OM SYSTEM OM-3 / Panasonic LUMIX S1II

OM SYSTEM OM-3: OM-3 · body only

Panasonic LUMIX S1II: DC-S1M2 · black, body only

SpecificationOM SYSTEM OM-3Panasonic LUMIX S1II
Release year20252025
Announcement / availability6 February 2025 / late February 2025

Dates from the manufacturer’s North America press release.

OM SYSTEM		—
Sensor4/3-inch stacked BSI Live MOS; approx. 20.4 MP effective, 22.9 MP total OM SYSTEM35.6 × 23.8 mm full-frame CMOS; 24.1 MP effective, 26.8 MP total Panasonic
ProcessorTruePic X OM SYSTEM—
Mount / formatMicro Four Thirds; 35 mm equivalent focal length approx. 2× OM SYSTEM—
Photo size and format5184 × 3888 maximum; 12-bit RAW and JPEG OM SYSTEM—
ISOLOW (approx. 80) – 102400; default auto upper limit 25600 OM SYSTEM—
StabilizationFive-axis sensor shift OM SYSTEM5-axis sensor shift; Dual I.S.2 compatibility Panasonic
Stabilization rating6.5 stops at centre and 5.5 at the corner in the body; 7.5 and 6.5 stops with a compatible Sync IS lens

CIPA 2024. Body figure with 12–45 mm f/4 PRO at 45 mm; Sync IS figure with 12–100 mm f/4 IS PRO at 100 mm, half-press IS off. Not a guarantee for every shot.

OM SYSTEM		—
Autofocus1053-point cross-type on-chip phase detection; subject detection: people, birds, cats, dogs, car and motorcycle racing, aircraft, helicopters, trains OM SYSTEMImage-plane phase detection + contrast detection Panasonic
Viewfinder2.36-million-dot OLED electronic viewfinder; up to 1.37× magnification; 27 mm eye point

Magnification with a 50 mm lens at infinity, −1 dioptre; depends on the selected viewfinder style.

OM SYSTEM		0.5-inch OLED, 5.76 million dots; approximately 0.78× Panasonic
Rear display3-inch, 3:2; approx. 1.62 million dots; touch, vari-angle OM SYSTEM—
ShutterFocal plane; 1/8000–60 s; down to 1/32000 s in silent mode; approx. 100,000 shot durability OM SYSTEM—
BurstApprox. 6 fps; with Pro Capture 20 fps, 50 fps with compatible lenses and 120 fps with focus and exposure fixed at the first frame

Slow shutter speeds and flash cannot be used. The compatible-lens list for 50 fps is limited.

OM SYSTEM		—
Pro CapturePro Capture: starts capturing at half-press; a full press saves up to 70 frames from before it

Not available while connected to a smartphone over Wi-Fi.

OM SYSTEM		—
Computational modesHigh Res Shot (10368 × 7776 on a tripod, 8160 × 6120 handheld); Live ND (ND2–ND64) and Live GND; HDR; focus stacking; multiple exposure; CP button OM SYSTEM—
Colour controlCreative dial on the front: COLOR, MONO, ART, CRT; Color and Monochrome Profile Control OM SYSTEM—
Video resolution4K 3840 × 2160 and C4K 4096 × 2160: 60/50/30/25/24p; Full HD 60/50/30/25/24p OM SYSTEM—
Video codecH.264 8-bit and H.265 10-bit; Flat, OM-Log400, HLG, OM-Cinema1 and OM-Cinema2 profiles

With H.265 selected, only OM-Log400 and HLG are available.

OM SYSTEM		—
High-speed videoFull HD at 240, 120 and 100 fps; no sound recorded; slow and quick motion mode

Available rates depend on codec and frame rate.

OM SYSTEM		—
Continuous video recordingAt 4K 30p 10-bit: up to 30 minutes at 40 °C; unlimited at 25 °C

Manufacturer’s own test condition.

OM SYSTEM		—
External recordingHDMI Type D; 4K/C4K 12-bit RAW output to a compatible recorder

In RAW output the camera does not record to the card.

OM SYSTEM		External SSD recording support Panasonic
AudioBuilt-in stereo microphones; 3.5 mm microphone and headphone jacks; 96 kHz / 24-bit linear PCM OM SYSTEMSeparate 3.5 mm microphone and headphone; 2.5 mm remote Panasonic
Card slotOne SD slot; SDHC/SDXC, UHS-I and UHS-II

4K/C4K, ALL-Intra and 100 fps or faster recording require a UHS speed class 3 card or better.

OM SYSTEM		—
Ports and wirelessUSB-C (USB 3); HDMI Type D; microphone and headphone; hot shoe; sync socket; Bluetooth Low Energy and Wi-Fi

Wired remote control is not supported.

OM SYSTEM		—
BatteryBLX-1 lithium-ion battery; 7.2 V / 2280 mAh; approx. 500 charge cycles OM SYSTEM—
Battery lifeApprox. 590 shots in standard mode, approx. 1040 in quick sleep mode; 120 min video (CIPA)

Approximate values measured with a KIOXIA 64 GB UHS-II card.

OM SYSTEM		—
USB charging and powerThe battery charges in the camera over USB-C; USB PD can power the camera externally

Powering needs a USB PD source rated at 27 W or more (9 V 3 A, 15 V 2 A or 15 V 3 A).

OM SYSTEM		—
Dimensions139.3 × 88.9 × 45.8 mm (excluding protrusions) OM SYSTEM134.3 × 102.3 × 91.8 mm; excluding protrusions Panasonic
Weight413 g body only; 496 g with battery and card OM SYSTEM800 g with battery and one SD card; 718 g body only Panasonic
DurabilityMagnesium alloy body; IP53 splash and dust resistance; freezeproof to −10 °C

IP53 needs a compatible splash- and dust-proof lens; not applicable while charging or with HDMI connected.

OM SYSTEM		—
Dust reductionSupersonic Wave Filter OM SYSTEM—
SoftwareOM Image Share (OI.Share) app; OM Workspace RAW processing software OM SYSTEM—
Release year—2025 Panasonic
Lens mount—Leica L-Mount Panasonic
Still image size—3:2, up to 6000 × 4000 Panasonic
High-resolution mode—3:2, up to 12000 × 8000; multi-shot mode Panasonic
Files—JPEG, HEIF, RAW; MP4 and MOV video options Panasonic
Card slots—1 × CFexpress Type B; 1 × UHS-II SD/SDHC/SDXC Panasonic
Open Gate video—5952 × 3968, 3:2, 29.97p; 4:2:0 10-bit HEVC option Panasonic
6K high frame rate—5952 × 2512, 2.4:1, 59.94p; 4:2:0 10-bit HEVC option Panasonic
Monitor—3-inch, 3:2 touchscreen; 1.84 million dots Panasonic
USB—USB-C, 10 Gbit/s; USB PD 9 V / 3 A Panasonic
HDMI—Full-size Type A; RAW video output Panasonic
Wireless—Wi-Fi 802.11a/b/g/n/ac; Bluetooth 5.0 LE Panasonic
Operating range—−10–40 °C; splash resistant, not for submersion Panasonic