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OM System

OM-D E-M10 Mark III

Entry MFT with IBIS and approachable design for beginners.

$649

Launch price

Released Aug 2017

vs
Alpha 7 V

Sony

Alpha 7 V

33MP partially stacked Exmor RS hybrid with BIONZ XR2 AI, 30fps blackout-free burst, 7.5-stop IBIS, and 4K 60p oversampled from 7K.

$2,899

Launch price

Released Dec 2025

Alpha 7 V is 8.3 years newer.

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Wins

5categories

OM-D E-M10 Mark III

Wins

10categories

Alpha 7 V

WildlifePortrait

3 categories tied

TL;DR — Key differences

OM-D E-M10 Mark III wins 0 categories·Alpha 7 V wins 5 categories
  • BAlpha 7 V has higher IBIS effectiveness (7.5 stops vs 0 stops)
  • BAlpha 7 V has higher Max video bit rate (600 Mbps vs 150 Mbps)
  • BAlpha 7 V has higher Burst (electronic) (30 fps vs 11 fps)
  • BAlpha 7 V has higher Resolution (33 MP vs 16 MP)
  • BAlpha 7 V has higher ISO max (native) (51,200 vs 25,600)

Key specs at a glance

OM-D E-M10 Mark IIIAlpha 7 V
Resolution16 MP33 MP
SensorMFTFull Frame
ISO max25,60051,200
Burst11 fps30 fps
4K60 fps120 fps
IBISNo7.5-stop
Weight580 g695 g
Battery640 shots630 shots

Size and weight, to scale

OM-D E-M10 Mark III

134 × 91 × 72 mm

580 g (1.28 lb / 20.46 oz)

Credit card shown to scale as a size reference (ISO 7810, 85.6 × 54 mm)

Credit card

85.6 × 54 mm

for scale

Alpha 7 V front view

Alpha 7 V

130 × 96 × 82 mm

695 g (1.53 lb / 24.52 oz)

OM-D E-M10 Mark III is 5mm shorter and 10mm thinner than Alpha 7 V but it is also 4mm wider.

OM-D E-M10 Mark III is 115 g lighter than Alpha 7 V.

Depth (front-to-back): 72mm OM-D E-M10 Mark III · 82mm Alpha 7 V

Back view, to scale

Width × Height — same proportions as the front of the body.

OM-D E-M10 Mark III

134 × 91 mm

Credit card shown to scale as a size reference (ISO 7810, 85.6 × 54 mm)

Credit card

85.6 × 54 mm

Alpha 7 V back view

Alpha 7 V

130 × 96 mm

Top view, to scale

Width × Depth (front-to-back) — see which body is chunkier on the table.

OM-D E-M10 Mark III

134 × 72 mm

Credit card shown to scale as a size reference (ISO 7810, 85.6 × 54 mm)

Credit card

85.6 × 54 mm

Alpha 7 V top view

Alpha 7 V

130 × 82 mm

Sensor size, to scale

OM-D E-M10 Mark III

17.3 × 13 mm · Micro Four Thirds

225 mm² area

Alpha 7 V

35.9 × 23.9 mm · Full Frame

858 mm² area

3.8× larger sensor area = shallower depth of field and better low-light performance.

Lens ecosystem

Native lens selection

OM-D E-M10 Mark III

Micro Four Thirds

130+

native lenses available

60 first-party70 third-party

Alpha 7 V

✓ more lenses

Sony E

350+

native lenses available

80 first-party270 third-party

Counts include current first-party and major third-party native autofocus lenses.

Use-case scoring

Which one for what?

Algorithmic scores from verified specs · 10 = best in class

Use caseOM-D E-M10 Mark IIIAlpha 7 V
Portrait
3.0Limited
8.0Excellent✓ wins
Sports & Action
4.5Fair
8.0Excellent✓ wins
Video & Hybrid
4.5Fair
8.0Excellent✓ wins
Landscape
0.0Limited
7.5Good✓ wins
Travel
5.0Fair
7.5Good✓ wins
Wildlife
5.0Fair
10.0Excellent✓ wins
Vlogging
5.5Fair
5.5Fair

Why pick one over the other

Reasons to choose

OM-D E-M10 Mark III

  • AF low-light limit

    -7 EV vs -4 EV — lower is better

  • Dimensions (W×H×D mm)

    Adds 134, 91, 72

  • AF points / zones

    1053 vs 759 — higher is better

  • Subject recognition

    Adds Vehicle

  • Weight

    580 g vs 695 g — lower is better

  • AF frame coverage

    100 % vs 94 % — higher is better

  • Battery life (CIPA)

    640 shots vs 630 shots — higher is better

Reasons to choose

Alpha 7 V

  • IBIS effectiveness

    7.5 stops vs 0 stops — higher is better

  • Dimensions (W×H×D mm)

    Adds 130.3, 96.4, 82.4

  • Max video bit rate

    600 Mbps vs 150 Mbps — higher is better

  • Burst (electronic)

    30 fps vs 11 fps — higher is better

  • Codecs

    Adds XAVC HS, XAVC S, XAVC S-I

  • Subject recognition

    Adds Insect, Car, Train…

  • Resolution

    33 MP vs 16 MP — higher is better

  • ISO max (native)

    51,200 vs 25,600 — higher is better

Both cameras share

  • AA filterBoth support aa filter
  • ISO min (native)Both 100
  • Eye AFBoth support eye af
  • EVF magnificationBoth 0.78 ×
  • EVF refresh rateBoth 120 Hz
  • Wi-FiBoth support wi-fi

Pros & cons at a glance

Editorially curated highlights and trade-offs.

OM-D E-M10 Mark III

Pros

  • IBIS at entry price
  • Compact
  • Easy menus

Cons

  • 16MP
  • No weather sealing
  • Older

Alpha 7 V

Pros

  • 33MP partially stacked sensor — ~4.5× faster readout than α7 IV
  • Blackout-free 30 fps with full AF/AE (electronic shutter)
  • 7.5-stop central / 6.5-stop peripheral IBIS (CIPA 2024)
  • 759-point phase-detect AF down to EV -4 with AI subject recognition
  • 7K oversampled 4K 60p (full-frame, no pixel binning) + 4K 120p
  • Pre-Capture and dual USB-C (10 Gbps + USB 2.0)
  • Up to 16 stops dynamic range

Cons

  • Premium price vs α7 IV
  • 4K 120p typically requires APS-C / Super 35 crop
  • Heavier than α7 IV (695 g vs 659 g with battery)
  • Complex menu and feature set

Decided which one is right for you?

Compare live prices for the OM-D E-M10 Mark III and Alpha 7 V at major authorized retailers.

Affiliate disclosure: As an Amazon Associate, Cameraegg earns from qualifying purchases. Cameraegg may also earn commission from B&H links, at no extra cost to you.

Full specifications

= category winner

OM-D E-M10 Mark III
Alpha 7 V
Resolution
16 MP
33 MP2.1× more
Sensor type
Four Thirds Live MOS
Full Frame Exmor RS CMOS (partially stacked)
Sensor size
17.3 × 13.0 mm
35.9 × 23.9 mm
AA filter
Yes
Yes
OM-D E-M10 Mark III
Alpha 7 V
Processor
TruePic X
BIONZ XR2 + AI processing unit
OM-D E-M10 Mark III
Alpha 7 V
ISO min (native)
100
100
ISO max (native)
25,600
51,200+1 stop
ISO max (expanded)
102,400
204,800
OM-D E-M10 Mark III
Alpha 7 V
Shutter type
Mechanical + Electronic
Mechanical + Electronic
Max mechanical speed
1/8000 sec
1/8000 sec
Max electronic speed
1/16000 sec
1/16000 sec
OM-D E-M10 Mark III
Alpha 7 V
AF system
Cross-type PDAF
Fast Hybrid AF (phase-detection / contrast-detection)
AF points / zones
1053+39%
759
AF frame coverage
100 %+6%
94 %
AF low-light limit
-7 EV
-4 EV
Eye AF
Yes
Yes
Animal / bird AF
No
Yes
Subject recognition
Human, Animal, Bird, Vehicle
Human, Animal, Bird, Insect, Car, Train, Airplane

Frequently asked

Quick answers generated from verified specs.

Which is better for landscape, OM-D E-M10 Mark III or Alpha 7 V?

Alpha 7 V scores 7.5/10 versus 0.0/10 for OM-D E-M10 Mark III — 33MP — ample resolution.

What's the resolution difference between the OM-D E-M10 Mark III and Alpha 7 V?

OM-D E-M10 Mark III is 16 MP and Alpha 7 V is 33 MP, so the Alpha 7 V captures more detail for cropping and large prints.

Do the OM-D E-M10 Mark III and Alpha 7 V have in-body image stabilization?

OM-D E-M10 Mark III does not have IBIS, while alpha 7 V has 7.5-stop in-body image stabilization.

Which shoots faster bursts — the OM-D E-M10 Mark III or the Alpha 7 V?

OM-D E-M10 Mark III reaches 11 fps electronic. Alpha 7 V reaches 30 fps electronic.

What's the weight difference between the OM-D E-M10 Mark III and Alpha 7 V?

OM-D E-M10 Mark III weighs 580 g and Alpha 7 V weighs 695 g, so the OM-D E-M10 Mark III is 115 g lighter.

Do the OM-D E-M10 Mark III and Alpha 7 V record 4K video?

OM-D E-M10 Mark III: 4K up to 60p. Alpha 7 V: 4K up to 120p.

Are the OM-D E-M10 Mark III and Alpha 7 V weather sealed?

OM-D E-M10 Mark III: No. Alpha 7 V: Yes.

Which has better battery life?

Rated battery life is 640 shots (CIPA) for the OM-D E-M10 Mark III and 630 shots for the Alpha 7 V, giving the OM-D E-M10 Mark III the edge.

How much does each cost?

OM-D E-M10 Mark III launched at $649 and Alpha 7 V at $2,899. The OM-D E-M10 Mark III is $2,250 less.

Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed June 2026.

Product images courtesy of OM System and Sony press materials.