Canon
EOS R6
Original 20MP hybrid that proved Canon mirrorless could match Sony for AF and IBIS.
$2,499
Released Jul 2020
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
EOS R6 Mark III is 5.3 years newer.
Wins
EOS R6
Wins
EOS R6 Mark III
9 categories tied
TL;DR — Key differences
- BEOS R6 Mark III has higher Max video bit rate (2600 Mbps vs 150 Mbps)
- BEOS R6 Mark III has higher Burst (electronic) (40 fps vs 20 fps)
- BEOS R6 Mark III has higher 4K max frame rate (120 fps vs 60 fps)
- BEOS R6 Mark III has higher Resolution (32.5 MP vs 20.1 MP)
- AEOS R6 has higher ISO max (native) (102,400 vs 64,000)
Key specs at a glance
Size and weight, to scale
EOS R6
138 × 98 × 88 mm
720 g (1.59 lb / 25.40 oz)
EOS R6 Mark III
138 × 98 × 88 mm
699 g (1.54 lb / 24.66 oz)
EOS R6 and EOS R6 Mark III share virtually identical body dimensions.
EOS R6 is 21 g heavier than EOS R6 Mark III.
Depth (front-to-back): 88mm EOS R6 · 88mm EOS R6 Mark III
Back view, to scale
Width × Height — same proportions as the front of the body.
EOS R6
138 × 98 mm
EOS R6 Mark III
138 × 98 mm
Top view, to scale
Width × Depth (front-to-back) — see which body is chunkier on the table.
EOS R6
138 × 88 mm
EOS R6 Mark III
138 × 88 mm
Sensor size, to scale
EOS R6
35.9 × 23.9 mm · Full Frame
858 mm² area
EOS R6 Mark III
35.9 × 23.9 mm · Full Frame
858 mm² area
Lens ecosystem
Native lens selection
EOS R6
✓ more lensesCanon RF
105+
native lenses available
EOS R6 Mark III
✓ more lensesCanon RF
105+
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
Subject recognition
Adds Human, Animal, Bird…
Dimensions (W×H×D mm)
Adds 138, 98, 88
ISO max (native)
102,400 vs 64,000 — higher is better
EVF magnification
0.78 × vs 0.76 × — higher is better
Reasons to choose
EOS R6 Mark III
Subject recognition
Adds People, Dogs, Cats…
Dimensions (W×H×D mm)
Adds 138.4, 98.4, 88.4
Max video bit rate
2600 Mbps vs 150 Mbps — higher is better
Codecs
Adds CRM, XF-HEVC S, XF-AVC S
Burst (electronic)
40 fps vs 20 fps — higher is better
4K max frame rate
120 fps vs 60 fps — higher is better
Internal RAW video
Only EOS R6 Mark III supports it
Card types
Adds CFexpress Type B
Both cameras share
- ✓AA filter — Both support aa filter
- ✓ISO min (native) — Both 100
- ✓AF points / zones — Both 1053
- ✓AF frame coverage — Both 100 %
- ✓Eye AF — Both support eye af
- ✓Animal / bird AF — Both support animal / bird af
Pros & cons at a glance
Editorially curated highlights and trade-offs.
EOS R6
Pros
- ✓20MP low-light king
- ✓8-stop IBIS
- ✓4K 60p
- ✓Proven AF
Cons
- –Superseded by R6 II
- –20MP resolution
- –No 40fps
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
Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for wildlife, EOS R6 or EOS R6 Mark III?
EOS R6 scores 10.0/10 versus 6.5/10 for EOS R6 Mark III — 20fps burst captures fleeting moments.
What's the resolution difference between the EOS R6 and EOS R6 Mark III?
EOS R6 is 20.1 MP and EOS R6 Mark III is 32.5 MP, so the EOS R6 Mark III captures more detail for cropping and large prints.
Do the EOS R6 and EOS R6 Mark III have in-body image stabilization?
EOS R6 has 8-stop in-body image stabilization, while eOS R6 Mark III has 8.5-stop in-body image stabilization.
Which shoots faster bursts — the EOS R6 or the EOS R6 Mark III?
EOS R6 reaches 20 fps electronic. EOS R6 Mark III reaches 40 fps electronic.
What's the weight difference between the EOS R6 and EOS R6 Mark III?
EOS R6 weighs 720 g and EOS R6 Mark III weighs 699 g, so the EOS R6 Mark III is 21 g lighter.
Do the EOS R6 and EOS R6 Mark III record 4K video?
EOS R6: 4K up to 60p. EOS R6 Mark III: 4K up to 120p.
Are the EOS R6 and EOS R6 Mark III weather sealed?
EOS R6: Yes. EOS R6 Mark III: Yes.
Which has better battery life?
Rated battery life is 640 shots (CIPA) for the EOS R6 and 640 shots for the EOS R6 Mark III, giving the EOS R6 Mark III the edge.
How much does each cost?
EOS R6 launched at $2,499 and EOS R6 Mark III at $2,799. The EOS R6 is $300 less.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed May 2026.
Product images courtesy of Canon press materials.