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  1. Home
  2. /Cameras
  3. /Sony A1 vs OM System OM-1 Mark II

Sony A1 vs OM System OM-1 Mark II

Verdict

Our overall take, at a glance

Key takeaways

  • Sony A1 leads OM System OM-1 Mark II overall by 7 points (75 vs 68 out of 100).
  • Sony A1 stands out on Sensor Megapixels: 50.1 MP, Max Video Resolution: 7680 × 4320 px, Max Video Frame Rate: 120 Hz.
Sony A1 leads overall
Sony A1
75
OM System OM-1 Mark II
68
Why it stands out
  • Sensor Megapixels: 50.1 MP
  • Max Video Resolution: 7680 × 4320 px
  • Max Video Frame Rate: 120 Hz

In-depth analysisAI

AI-generated from the cited sources — may be incomplete or inaccurate; verify important details before deciding · generated Jun 2026.

Sony A1

The Sony A1 is a professional mirrorless interchangeable-lens camera designed around a high-performance full-frame sensor. Built for demanding media creators, it unifies fast electronic shutter capabilities, sophisticated autofocus, and flexible recording formats into a highly adaptable body.

Best for High-speed sports and action photographyBest for Hybrid professional photo and video production
Pros
  • Electronic shutter capability that supports flash synchronization
  • Lossless compressed raw formats that balance image quality with file size
  • Advanced autofocus tracking suitable for capturing fast-moving subjects
Cons
  • Substantial financial investment required for the camera body and professional-tier lenses
Source
  • Wikidata: Sony α1Establishes the device classification as a professional mirrorless camera featuring a full-frame sensor.
  • A1 - Wikipedia
Video — reviews used (3)

Details hands-on features including electronic shutter flash synchronization, lossless compressed raw capabilities, and performance in action scenarios.

Generated Jun 30, 2026

OM System OM-1 Mark II

The OM System OM-1 Mark II is an incremental update to the brand's flagship Micro Four Thirds mirrorless camera, tailored for wildlife, action, and outdoor photographers. Powered by the TruePic X image processor and a 20.4-megapixel stacked BSI Live MOS sensor, this model maintains a highly compact form factor while introducing key hardware and system refinements. It focuses on expanding memory capacity and enhancing computational photography features over its predecessor.

Best for Wildlife and action photography requiring fast burst rates and deep buffers to cBest for Landscape photography in unpredictable weather without the burden of physical ne
Pros
  • Doubled buffer memory allows for much longer high-speed continuous shooting sequences.
  • Advanced built-in computational options, including Live ND and a new Graduated ND filter simulation.
  • Highly durable construction with IP53-certified weather sealing for reliable outdoor use.
  • Upgraded autofocus tracking capabilities and improved in-body image stabilization.
Cons
  • Highly incremental update over the original model, with few physical hardware redesigns.
  • Sensor resolution remains limited to 20.4 megapixels.
Source
  • OM System OM-1 - WikipediaProvided specifications for the OM-1 series, including the TruePic X processor, 20.4 MP sensor, IP53 weather sealing, and the key differences of the Mark II upgrade.
Video — reviews used (2)

Evaluated real-world features of the Mark II, including the updated dials, autofocus performance, buffer capacity, Live ND, and the new Graduated ND filter.

Generated Jun 30, 2026

Value for Money

Which is the better deal for the price

Enter today's price for each product to see which offers better value. Use the same currency for both.

Sony A1

Check Price on Amazon

OM System OM-1 Mark II

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Physical Comparison

Weigh them up, then compare real dimensions in 3D

737 g599 g
Sony A1OM System OM-1 Mark II

Sony A1 is 138 g (23%) heavier than OM System OM-1 Mark II.

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Review Videos

Hand-picked expert reviews for each product

Detailed Specifications

The full spec sheet, side by side

Sensor

Feature
Sony A1
OM System OM-1 Mark II
Sensor Type
Full-frame Exmor RS stacked CMOS
Micro Four Thirds stacked BSI Live MOS
Sensor Size
Full-frame
Micro Four Thirds
Megapixels
50.1 MP
20.4 MP
Image Stabilization (IBIS)
Yes
Yes
ISO Min
100
80
ISO Max
32,000
25,600

Video

Feature
Sony A1
OM System OM-1 Mark II
Max Video Resolution
7680 × 4320 px
4096 × 2160 px
Max Video Frame Rate
120 Hz
60 Hz
Video Bit Depth
10
10
Log Profile
Yes
Yes

Performance

Feature
Sony A1
OM System OM-1 Mark II
Burst Speed (mechanical)
10
10
Burst Speed (electronic)
30
120

Display & Viewfinder

Feature
Sony A1
OM System OM-1 Mark II
LCD Size
3 in
3 in
LCD Resolution
1,440,000
1,620,000
Viewfinder Resolution
9,437,184
5,760,000
Touchscreen
Yes
Yes
Articulating Screen
Yes
Yes

Connectivity & Storage

Feature
Sony A1
OM System OM-1 Mark II
Lens Mount
Sony E
Micro Four Thirds
Dual Card Slots
Yes
Yes
Weather Sealing
Yes
Yes
Wi-Fi
Yes
Yes
Bluetooth
Yes
Yes

Physical & Battery

Feature
Sony A1
OM System OM-1 Mark II
Weight
737 g
599 g
Battery Life (CIPA shots)
530
500
Release Date
January 26, 2021
January 30, 2024
Dimensions
12.89 × 9.69 × 8.08 cm
13.88 × 9.16 × 7.28 cm

Specification Note

Specifications are compiled from official manufacturer data and other reliable internet sources. Some features may vary by region or model configuration.

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