Cameraegg Compare logoCameraegg
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

Sony

FX9

Full-frame 6K XDCAM camcorder with Dual Base ISO, S-Cinetone, Fast Hybrid AF, variable ND, and oversampled DCI 4K up to 60p.

$10,998

Launch price

Released Sep 2019

EOS R6 Mark III is 6.2 years newer.

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.

Wins

12categories

EOS R6 Mark III

Sports & ActionPortrait

Wins

0categories

FX9

Video & Hybrid

1 categories tied

Which would you choose?

TL;DR — Key differences

EOS R6 Mark III wins 5 categories·FX9 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 higher ISO max (native) (64,000 vs 4,000)
  • AEOS R6 Mark III has lower ISO min (native) (100 vs 800)

Key specs at a glance

EOS R6 Mark IIIFX9
Resolution32.5 MP20.5 MP
SensorFull FrameFull Frame
ISO max64,0004,000
Burst40 fps
4K120 fps60 fps
IBIS8.5-stopNo
Weight699 g2000 g
Battery640 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

FX9

146 × 143 × 229 mm

2000 g (4.41 lb / 70.55 oz)

EOS R6 Mark III is 8mm narrower, 44mm shorter, and 141mm thinner than FX9.

EOS R6 Mark III is 1301 g lighter than FX9.

Depth (front-to-back): 88mm EOS R6 Mark III · 229mm FX9

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

FX9

146 × 143 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

FX9

146 × 229 mm

Sensor size, to scale

EOS R6 Mark III

35.9 × 23.9 mm · Full Frame

858 mm² area

FX9

35.7 × 18.8 mm · Full Frame

671 mm² area

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

Lens ecosystem

Native lens selection

EOS R6 Mark III

Canon RF

105+

native lenses available

45 first-party60 third-party

FX9

✓ 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 caseEOS R6 Mark IIIFX9
Portrait
8.0Excellent✓ wins
5.5Fair
Sports & Action
10.0Excellent✓ wins
5.0Fair
Video & Hybrid
6.5Good✓ wins
6.0Good
Landscape
7.5Good✓ wins
4.5Fair
Travel
7.5Good✓ wins
2.5Limited
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

  • ISO max (native)

    64,000 vs 4,000 — higher is better

  • ISO min (native)

    100 vs 800 — lower is better

Reasons to choose

FX9

  • Subject recognition

    Adds Human, Animal

  • Codecs

    Adds XAVC-I, XAVC-L, MPEG HD422

  • Dimensions (W×H×D mm)

    Adds 146, 142.5, 229

  • Card types

    Adds XQD

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
  • TouchscreenBoth support touchscreen

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

FX9

Pros

  • Full-frame 6K Exmor R oversampling
  • Dual Base ISO 800 / 4000
  • S-Cinetone + S-Log3
  • Built-in variable ND (1/4–1/128)
  • 12G-SDI + dual XQD slots

Cons

  • Large shoulder-cam form factor
  • Body-only is 2 kg
  • XQD media (not CFexpress)
  • 6K not recorded natively (oversampled 4K)

Decided which one is right for you?

Compare live prices for the EOS R6 Mark III and FX9 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

EOS R6 Mark III
FX9
Resolution
32.5 MP+59%
20.5 MP
Sensor type
Full Frame CMOS
Full Frame Exmor R CMOS (6K oversampling)
Sensor size
35.9 × 23.9 mm
35.7 × 18.8 mm
AA filter
Yes
Yes
EOS R6 Mark III
FX9
Processor
DIGIC X
BIONZ XR
EOS R6 Mark III
FX9
ISO min (native)
100−700 less
800
ISO max (native)
64,000+4 stops
4,000
ISO max (expanded)
102,400
EOS R6 Mark III
FX9
Shutter type
Mechanical / Electronic 1st Curtain + Electronic
Electronic rolling shutter
Max mechanical speed
1/8000 sec
Max electronic speed
1/16000 sec
1/8000 sec

Frequently asked

Quick answers generated from verified specs.

Which is better for sports, EOS R6 Mark III or FX9?

EOS R6 Mark III scores 10.0/10 versus 5.0/10 for FX9 — 40fps burst — pro-level action capture.

What's the resolution difference between the EOS R6 Mark III and FX9?

EOS R6 Mark III is 32.5 MP and FX9 is 20.5 MP, so the EOS R6 Mark III captures more detail for cropping and large prints.

Do the EOS R6 Mark III and FX9 have in-body image stabilization?

EOS R6 Mark III has 8.5-stop in-body image stabilization, while FX9 does not have IBIS.

What's the weight difference between the EOS R6 Mark III and FX9?

EOS R6 Mark III weighs 699 g and FX9 weighs 2000 g, so the EOS R6 Mark III is 1301 g lighter.

Do the EOS R6 Mark III and FX9 record 4K video?

EOS R6 Mark III: 4K up to 120p. FX9: 6K oversampled → DCI 4K / UHD 4K (max), 4K up to 60p.

Are the EOS R6 Mark III and FX9 weather sealed?

EOS R6 Mark III: Yes. FX9: Yes.

How much does each cost?

EOS R6 Mark III launched at $2,799 and FX9 at $10,998. The EOS R6 Mark III is $8,199 less.

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

Add any camera to get a three-way EOS R6 Mark III vs FX9 vs X comparison.

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

Product images courtesy of Canon and Sony press materials.