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EOS R6 Mark III

Canon

EOS R6 Mark III

Hybrid 32.5MP full-frame RF body with 7K RAW video, 40fps electronic burst, 8.5-stop IBIS, and Dual Pixel CMOS AF II.

$2,799

Launch price

Released Nov 2025

vs
FX6

Sony

FX6

Full-frame cinema camcorder with dual base ISO and pro broadcast features.

$5,999

Launch price

Released Nov 2020

EOS R6 Mark III is 4.9 years newer.

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Wins

13categories

EOS R6 Mark III

Sports & ActionPortrait

Wins

3categories

FX6

Sports & Action

2 categories tied

Which would you choose?

TL;DR — Key differences

EOS R6 Mark III wins 5 categories·FX6 wins 0 categories
  • AEOS R6 Mark III has higher Burst (mechanical) (12 fps vs 0 fps)
  • AEOS R6 Mark III has higher Burst (electronic) (40 fps vs 0 fps)
  • AEOS R6 Mark III has higher IBIS effectiveness (8.5 stops vs 0 stops)
  • AEOS R6 Mark III has lower ISO min (native) (100 vs 800)
  • AEOS R6 Mark III has higher ISO max (native) (64,000 vs 12,800)

Key specs at a glance

EOS R6 Mark IIIFX6
Resolution32.5 MP10.2 MP
SensorFull FrameFull Frame
ISO max64,00012,800
Burst40 fps
4K120 fps60 fps
IBIS8.5-stopNo
Weight699 g890 g
Battery640 shots520 shots

Size and weight, to scale

EOS R6 Mark III front view

EOS R6 Mark III

138 × 98 × 88 mm

699 g (1.54 lb / 24.66 oz)

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

Credit card

85.6 × 54 mm

for scale

FX6 front view

FX6

114 × 116 × 153 mm

890 g (1.96 lb / 31.39 oz)

EOS R6 Mark III is 18mm shorter and 65mm thinner than FX6 but it is also 24mm wider.

EOS R6 Mark III is 191 g lighter than FX6.

Depth (front-to-back): 88mm EOS R6 Mark III · 153mm FX6

Back view, to scale

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

EOS R6 Mark III back view

EOS R6 Mark III

138 × 98 mm

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

Credit card

85.6 × 54 mm

FX6 back view

FX6

114 × 116 mm

Top view, to scale

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

EOS R6 Mark III top view

EOS R6 Mark III

138 × 88 mm

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

Credit card

85.6 × 54 mm

FX6

114 × 153 mm

Sensor size, to scale

EOS R6 Mark III

35.9 × 23.9 mm · Full Frame

858 mm² area

FX6

35.6 × 23.8 mm · Full Frame

847 mm² area

Lens ecosystem

Native lens selection

EOS R6 Mark III

✓ more lenses

Canon RF

105+

native lenses available

45 first-party60 third-party

FX6: mount data unavailable

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 caseEOS R6 Mark IIIFX6
Portrait
8.0Excellent✓ wins
5.5Fair
Sports & Action
10.0Excellent✓ wins
6.0Good
Video & Hybrid
6.5Good✓ wins
3.5Limited
Landscape
7.5Good✓ wins
4.5Fair
Travel
7.5Good✓ wins
4.0Fair
Wildlife
6.5Good✓ wins
3.0Limited
Vlogging
5.5Fair✓ wins
3.5Limited

Why pick one over the other

Reasons to choose

EOS R6 Mark III

  • Subject recognition

    Adds People, Dogs, Cats…

  • Burst (mechanical)

    12 fps vs 0 fps — higher is better

  • Burst (electronic)

    40 fps vs 0 fps — higher is better

  • Codecs

    Adds CRM, XF-HEVC S, XF-AVC S…

  • IBIS effectiveness

    8.5 stops vs 0 stops — higher is better

  • Dimensions (W×H×D mm)

    Adds 138.4, 98.4, 88.4

  • Card types

    Adds CFexpress Type B, SD UHS-II

  • ISO min (native)

    100 vs 800 — lower is better

Reasons to choose

FX6

  • Subject recognition

    Adds Human, Animal

  • Codecs

    Adds XAVC-I, XAVC-L, MPEG-4 AVC/H.264

  • Dimensions (W×H×D mm)

    Adds 114, 116, 153

  • Card types

    Adds CFexpress Type A, SD card

  • EVF resolution

    5,760,000 vs 3,690,000 — higher is better

  • 1080p max frame rate

    240 fps vs 180 fps — higher is better

  • EVF magnification

    0.78 × vs 0.76 × — higher is better

Both cameras share

  • AA filterBoth support aa filter
  • Eye AFBoth support eye af
  • Animal / bird AFBoth support animal / bird af
  • Weather sealingBoth support weather sealing
  • Card slotsBoth 2
  • EVF refresh rateBoth 120 Hz

Pros & cons at a glance

Editorially curated highlights and trade-offs.

EOS R6 Mark III

Pros

  • 32.5MP full-frame sensor
  • 7K RAW video & 4K 120p
  • 40fps electronic burst with Pre-Continuous
  • 8.5-stop IBIS

Cons

  • Single CFexpress Type B + SD slot
  • Smaller LCD than R5 II
  • LP-E6P required for full features

FX6

Pros

  • Dual base ISO
  • Pro cinema workflow
  • Internal XAVC
  • ND filters

Cons

  • Fixed lens mount needs adapters
  • Large for solo travel
  • Premium price

Decided which one is right for you?

Compare live prices for the EOS R6 Mark III and FX6 at major authorized retailers.

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Full specifications

= category winner

EOS R6 Mark III
FX6
Resolution
32.5 MP3.2× more
10.2 MP
Sensor type
Full Frame CMOS
35 mm full-frame, single-chip CMOS image sensor
Sensor size
35.9 × 23.9 mm
35.6 × 23.8 mm
AA filter
Yes
Yes
EOS R6 Mark III
FX6
Processor
DIGIC X
BIONZ XR
EOS R6 Mark III
FX6
ISO min (native)
100−700 less
800
ISO max (native)
64,000+2.3 stops
12,800
ISO max (expanded)
102,400
409,600
EOS R6 Mark III
FX6
Shutter type
Mechanical / Electronic 1st Curtain + Electronic
Mechanical + Electronic
Max mechanical speed
1/8000 sec
1/8000 sec
Max electronic speed
1/16000 sec
1/32000 sec

Frequently asked

Quick answers generated from verified specs.

Which is better for sports, EOS R6 Mark III or FX6?

EOS R6 Mark III scores 10.0/10 versus 6.0/10 for FX6 — 40fps burst — pro-level action capture.

What's the resolution difference between the EOS R6 Mark III and FX6?

EOS R6 Mark III is 32.5 MP and FX6 is 10.2 MP, so the EOS R6 Mark III captures more detail for cropping and large prints.

Do the EOS R6 Mark III and FX6 have in-body image stabilization?

EOS R6 Mark III has 8.5-stop in-body image stabilization, while FX6 does not have IBIS.

What's the weight difference between the EOS R6 Mark III and FX6?

EOS R6 Mark III weighs 699 g and FX6 weighs 890 g, so the EOS R6 Mark III is 191 g lighter.

Do the EOS R6 Mark III and FX6 record 4K video?

EOS R6 Mark III: 4K up to 120p. FX6: 4K up to 60p.

Are the EOS R6 Mark III and FX6 weather sealed?

EOS R6 Mark III: Yes. FX6: Yes.

Which has better battery life?

Rated battery life is 640 shots (CIPA) for the EOS R6 Mark III and 520 shots for the FX6, giving the EOS R6 Mark III the edge.

How much does each cost?

EOS R6 Mark III launched at $2,799 and FX6 at $5,999. The EOS R6 Mark III is $3,200 less.

Can't decide between two? Compare a third camera.

Add any camera to get a three-way EOS R6 Mark III vs FX6 vs X comparison.

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

Product images courtesy of Canon and Sony press materials.