OM System OM-D E-M10 Mark IV vs Sony Alpha A7R V Full-Frame Camera (2026)

✍️ By the 247Verdict Editorial Team📅 Updated 05 October 2026

Which is better? We compared both on score, owner ratings, pros and cons.

OM System OM-D E-M10 Mark IV

8.9/10 Great

4.5★ (2,800 owners)

20MP Micro 4/3, 5-axis IBIS, 4K video, flip screen, compact. Best travel mirrorless under £700.

Full Review

Sony Alpha A7R V Full-Frame Camera

9.5/10 Outstanding

4.8★ (1,400 owners)

61MP full-frame, AI autofocus, 8-stop IBIS, 8K video. The high-resolution landscape and studio benchmark.

Full Review

At a Glance

	OM System OM-D E-M10 Mark IV	Sony Alpha A7R V Full-Frame Camera
247Verdict Score	8.9/10	9.5/10
Owner Rating	4.5★ (2,800)	4.8★ (1,400)
Verdict	Great	Outstanding
Sensor	20MP Micro 4/3	61MP full-frame
IBIS	5-axis (Olympus heritage)	8-stop
Video	4K	8K

Quick Verdict

Both are strong choices, but the Sony Alpha A7R V Full-Frame Camera edges ahead with a 9.5/10 vs 8.9/10. 61MP full-frame, AI autofocus, 8-stop IBIS, 8K video. The high-resolution landscape and studio benchmark. That said, the OM System OM-D E-M10 Mark IV is worth considering if 20MP Micro 4/3, 5-axis IBIS, 4K video, flip screen, compact. Best travel mirrorless under £700. Check the current price on Amazon →

Pros & Cons Side by Side

OM System OM-D E-M10 Mark IV

5-axis in-body stabilisation at this price is exceptional — Olympus IBIS engineering heritage
Most compact interchangeable lens camera with IBIS available
Micro 4/3 system: smaller lenses enable genuinely pocketable total kit weight
4K video with 5-axis stabilisation for smooth handheld footage
Extensive Micro 4/3 lens ecosystem from OM System, Panasonic and Sigma

Micro 4/3 sensor smaller than APS-C — lower light performance than Sony or Fujifilm at equivalent ISO
Smaller sensor limits shallow depth of field for portrait work
OM System brand less recognised than Canon or Sony for those coming from phones

Sony Alpha A7R V Full-Frame Camera

61MP sensor resolves extraordinary detail for landscape, studio and large prints
AI-based autofocus recognises humans, animals, birds and vehicles with class-leading accuracy
8-stop in-body stabilisation enables sharp handheld shooting in low light
8K video adds serious hybrid capability
Excellent weather-sealed build for demanding outdoor work

61MP files are huge and demand fast cards and storage
Resolution is overkill for casual or social shooting
Premium price

FAQ

Which is better, OM System OM-D E-M10 Mark IV or Sony Alpha A7R V?

Is the OM System OM-D E-M10 Mark IV worth the extra cost?

The Sony Alpha A7R V Full-Frame Camera matches or exceeds it at a potentially lower price point.

Who is the OM System OM-D E-M10 Mark IV best suited to?

20MP Micro 4/3, 5-axis IBIS, 4K video, flip screen, compact. Best travel mirrorless under £700.

Who is the Sony Alpha A7R V best suited to?

61MP full-frame, AI autofocus, 8-stop IBIS, 8K video. The high-resolution landscape and studio benchmark.

What are the main downsides of each?

OM System OM-D E-M10 Mark IV: Micro 4/3 sensor smaller than APS-C — lower light performance than Sony or Fujifilm at equivalent ISO; Smaller sensor limits shallow depth of field for portrait work. Sony Alpha A7R V Full-Frame Camera: 61MP files are huge and demand fast cards and storage; Resolution is overkill for casual or social shooting.

Do owner ratings agree with our verdict?

Largely, yes — OM System OM-D E-M10 Mark IV sits at 4.5★ from 2,800 verified Amazon owners, and Sony Alpha A7R V Full-Frame Camera at 4.8★ from 1,400.

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