OM SYSTEM OM-3 / Sony α9 III (ILCE-9M3)

OM SYSTEM OM-3: OM-3 · body only

Sony α9 III (ILCE-9M3): α9 III ILCE-9M3 body; the VG-C5 vertical grip is sold separately. The α9 (ILCE-9) and α9 II (ILCE-9M2) are earlier models with different sensors.

SpecificationOM SYSTEM OM-3Sony α9 III (ILCE-9M3)
Release year20252023
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 stacked Exmor RS CMOS with global shutter; about 24.6MP effective for stills, 20.3MP for video

A global shutter reads every row at once, so the skew seen on row-by-row sensors with spinning propellers, golf clubs or fast pans does not occur.

Sony
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 SYSTEM—
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 SYSTEMFast Hybrid AF; 759 phase-detection points for stills, 627 for video Sony
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
—
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
—
AudioBuilt-in stereo microphones; 3.5 mm microphone and headphone jacks; 96 kHz / 24-bit linear PCM OM SYSTEM—
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 SYSTEMNP-FZ100; about 400 shots with the viewfinder and 530 with the screen (CIPA); charging and power over USB PD Sony
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 SYSTEM—
Weight413 g body only; 496 g with battery and card OM SYSTEM—
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—
Processor and ISO—BIONZ XR; ISO 250–25600 for stills (expanded 125–51200)

A base ISO of 250 means the lowest-noise setting is higher than on cameras with an ISO 100 base.

Sony
Burst and shutter—About 120 fps (Hi+), blackout-free; electronic shutter only, 1/80,000–30 s

Sony says AF/AE tracking continues at 120 fps. Speed Boost switches to a preset higher rate with one button during shooting; Pre-Capture keeps up to 1 second recorded before the shutter is pressed.

Sony
Flash sync—Up to 1/80,000 s (electronic); 1/500 s

Thanks to the global shutter, flash can be used even at the fastest shutter speed without switching to high-speed sync.

Sony
In-body stabilisation—5-axis sensor shift; 8.0 stops (CIPA)

The figure is measured with the FE 50mm F1.2 GM on pitch/yaw only.

Sony
Viewfinder and screen—0.64-type OLED viewfinder, 9,437,184 dots, 0.90x; 3.2-type 2,095,104-dot touchscreen (multi-angle)

The viewfinder refreshes at 60/120/240 fps. The screen tilts up 98°, down 40°, swings 180° to the side and rotates 270°.

Sony
Video—Up to 4K 119.88p; XAVC S (8-bit 4:2:0 or 10-bit 4:2:2), XAVC HS (10-bit 4:2:2), XAVC S-I 4K 59.94p (600 Mbps)

XAVC HS is H.265-based, producing smaller files at the same quality but needing a stronger computer to edit. XAVC S-I records intra-frame only, easier to edit but with large files.

Sony
Card slots—Two slots; each takes SD (UHS-I/II) or CFexpress Type A

CFexpress Type A cards are better suited to clearing the buffer quickly when shooting RAW at 120 fps.

Sony
Connectivity—USB-C 10 Gb/s (USB 3.2); plus Multi/Micro USB; 1000BASE-T wired LAN; Wi-Fi 802.11ac (2.4/5 GHz); Bluetooth 5.0; Type-A HDMI

Wired LAN is used to send photos quickly to agencies at sports and news events. Full-size HDMI gives a sturdier connection in the field than micro HDMI.

Sony
Size and weight—About 136.1 × 96.9 × 82.9 mm; about 702 g with battery and card (body only 617 g) Sony