Compare OM System OM-1 Mark II vs Sony Alpha 1 II

In this technical comparison between the OM System OM-1 Mark II and the Sony Alpha 1 II, we analyze the key features to help you choose.

Choosing between these two Cameras models often comes down to your budget, with prices around $2,399 / £2,199 and $6,499.99 USD.

Specifications OM System
OM-1 Mark II
Sony
Alpha 1 II
OM System OM-1 Mark II Sony Alpha 1 II
Launch
Version January 2024 December 2024
Body
Dimensions 134.8 x 91.6 x 72.7 mm 136.1× 96.9× 82.9 mm
Weight Approx. 599g (with battery and card); 511g (body only) 743g (with battery and card) / 658g (Body only)
Mount Micro Four Thirds Sony E-mount
Weather sealing IP53 rated (Superior protection against dust and splashes); Freezeproof to -10°C Yes (Enhanced dust and moisture resistance; inherits a9 III body design)
Sensor
Type Stacked BSI Live MOS Stacked BSI Exmor RS CMOS with dedicated AI Processing Unit
Size Four Thirds (17.4 x 13.0 mm) Full-frame (35.9× 24.0 mm)
Resolution 20.4 Megapixels 50.1 Megapixels
ISO range 200–25,600 (Extended: 80–102,400) 100 - 32,000 (Stills expandable to 50–102,400)
Stabilization 5-axis In-body (IBIS) up to 8.5 stops (World-leading compensation) 5-Axis In-Body Image Stabilization (IBIS); 8.5 stops (Center) / 7.0 stops (Periphery)
Display & Viewfinder
Rear screen 3.0-inch Fully Articulated Touch LCD; 1.62M dots 3.2-inch 4-axis Multi-angle Touchscreen LCD (2.1M dots)
Viewfinder 5.76M-dot OLED EVF; 0.83x magnification; 120fps refresh; blackout-free 0.64-type QXGA OLED EVF (9.44M dots), 0.90x magnification, up to 240 fps refresh rate
Autofocus
AF Points 1,053 points (All Cross-type) 759 points (Phase-detection) covering 92% of the sensor
AF System Cross Quad Pixel Phase Detection AF Fast Hybrid AF with AI-based Real-time Recognition
Eye AF Yes (Human, Animal, Bird, Car, Train, Airplane, and Motorcycle detection; significantly improved over the Mark I) Humans (improved by 30%), Animals, Birds, Insects, Cars, Trains, and Airplanes
Photo
Continuous shooting 10 fps (Mechanical); up to 120 fps (Electronic S-AF); 50 fps (Electronic C-AF) Up to 30 fps (Electronic Shutter) with full AF/AE tracking; 10 fps (Mechanical)
Formats RAW (now supports 14-bit in High-Res modes), JPEG --- Computational Modes: Live GND (Graduated ND), Live ND (up to ND128), 80MP Tripod High-Res, 50MP Handheld High-Res RAW (Compressed/Lossless/Uncompressed), JPEG, HEIF (4:2:0 / 4:2:2) --- Pre-Capture (up to 1 sec), Speed Boost, 199MP Pixel Shift Multi Shooting
Video
Max Resolution & FPS 4K (DCI/UHD) up to 60p; Full HD up to 240p 8K at up to 30p; 4K at up to 120p (10-bit 4:2:2)
Bit-depth 10-bit internal (H.265); 12-bit RAW output via HDMI 10-bit internal; 16-bit RAW output via HDMI
Mic / Headphone ports 3.5mm Mic jack / 3.5mm Headphone jack Yes (3.5 mm for both); supports 4-channel audio via Multi Interface Shoe
HDMI output Micro-HDMI (Type D) Full-size HDMI (Type-A)
Storage
Card slots Dual slots Dual Slots (Both slots are hybrid)
Type Both slots are SD/SDHC/SDXC (UHS-II) CFexpress Type A or SD (UHS-I/UHS-II)
Connectivity
Wi-Fi Yes Wi-Fi 5 (802.11ac) 2x2 MIMO
Bluetooth Yes Bluetooth 5.0
USB / HDMI USB-C (Supports Power Delivery and UVC/UAC webcam mode natively) USB-C (USB 3.2 Gen 2, 10Gbps) / Full HDMI / 2.5G Ethernet (RJ45)
Battery
Model BLX-1 NP-FZ100
CIPA shots Approx. 500 shots (Normal) / 1,010 shots (Quick Sleep Mode) Approx. 420 shots (EVF) / 520 shots (LCD)
USB charging Yes (USB-PD supported) Yes (USB-PD Power Delivery supported)
Misc
Inside the box Camera body, BLX-1 battery, USB-AC adapter (F-7AC), USB cable, Shoulder strap, Cable clip Alpha 1 II Body, NP-FZ100 Battery, BC-ZD1 Dual Battery Charger, USB-C Cable, Shoulder Strap, Two Eyecups (Standard & Deep)
Price $2,399 / £2,199 $6,499.99 USD
Full Details OM-1 Mark II - Full Specifications Alpha 1 II - Full Specifications