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
Released Nov 2025
Sony
FX6
Full-frame cinema camcorder with dual base ISO and pro broadcast features.
$5,999
Released Nov 2020
EOS R6 Mark III is 4.9 years newer.
Wins
EOS R6 Mark III
Wins
FX6
3 categories tied
TL;DR — Key differences
- 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
Size and weight, to scale
EOS R6 Mark III
138 × 98 × 88 mm
699 g (1.54 lb / 24.66 oz)
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
138 × 98 mm
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
138 × 88 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
Canon RF
105+
native lenses available
FX6
✓ more lensesSony E
350+
native lenses available
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
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
IBIS effectiveness
8.5 stops vs 0 stops — higher is better
Dimensions (W×H×D mm)
Adds 138.4, 98.4, 88.4
ISO min (native)
100 vs 800 — lower is better
ISO max (native)
64,000 vs 12,800 — higher is better
Codecs
Adds CRM, XF-HEVC S, XF-AVC S…
Reasons to choose
FX6
Subject recognition
Adds Human, Animal
Dimensions (W×H×D mm)
Adds 114, 116, 153
Codecs
Adds XAVC-I, XAVC-L
Card types
Adds CFexpress Type A
EVF resolution
5,760,000 vs 3,690,000 — higher is better
EVF magnification
0.78 × vs 0.76 × — higher is better
Both cameras share
- ✓AA filter — Both support aa filter
- ✓Eye AF — Both support eye af
- ✓Animal / bird AF — Both support animal / bird af
- ✓4K max frame rate — Both 120 fps
- ✓Weather sealing — Both support weather sealing
- ✓Card slots — Both 2
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
Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for sports, EOS R6 Mark III or FX6?
EOS R6 Mark III scores 8.5/10 versus 3.0/10 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 120p.
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.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed May 2026.
Product images courtesy of Canon and Sony press materials.