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
Canon
EOS R8
Lightest Canon full-frame mirrorless — R6 II AF in a compact, affordable body.
$1,499
Released Apr 2023
EOS R6 Mark III is 2.6 years newer.
Wins
EOS R6 Mark III
Wins
EOS R8
4 categories tied
TL;DR — Key differences
- AEOS R6 Mark III has higher IBIS effectiveness (8.5 stops vs 0 stops)
- AEOS R6 Mark III has higher Max video bit rate (2600 Mbps vs 180 Mbps)
- BEOS R8 has higher AF points / zones (4897 vs 1053)
- AEOS R6 Mark III has higher Battery life (CIPA) (640 shots vs 290 shots)
- AEOS R6 Mark III has higher RAW buffer depth (150 frames vs 70 frames)
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)
EOS R8
133 × 86 × 70 mm
461 g (1.02 lb / 16.26 oz)
EOS R6 Mark III is 6mm wider, 12mm taller, and 18mm thicker than EOS R8.
EOS R6 Mark III is 238 g heavier than EOS R8.
Depth (front-to-back): 88mm EOS R6 Mark III · 70mm EOS R8
Back view, to scale
Width × Height — same proportions as the front of the body.
EOS R6 Mark III
138 × 98 mm
EOS R8
133 × 86 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
EOS R8
133 × 70 mm
Sensor size, to scale
EOS R6 Mark III
35.9 × 23.9 mm · Full Frame
858 mm² area
EOS R8
35.9 × 23.9 mm · Full Frame
858 mm² area
Lens ecosystem
Native lens selection
EOS R6 Mark III
✓ more lensesCanon RF
105+
native lenses available
EOS R8
✓ 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 Mark III
Subject recognition
Adds People, Dogs, Cats…
IBIS effectiveness
8.5 stops vs 0 stops — higher is better
Dimensions (W×H×D mm)
Adds 138.4, 98.4, 88.4
Max video bit rate
2600 Mbps vs 180 Mbps — higher is better
Codecs
Adds CRM, XF-HEVC S, XF-AVC S
Battery life (CIPA)
640 shots vs 290 shots — higher is better
RAW buffer depth
150 frames vs 70 frames — higher is better
Burst (mechanical)
12 fps vs 6 fps — higher is better
Reasons to choose
EOS R8
Subject recognition
Adds Human, Animal, Bird…
Dimensions (W×H×D mm)
Adds 132.5, 86.1, 70
AF points / zones
4897 vs 1053 — higher is better
ISO max (native)
102,400 vs 64,000 — higher is better
Weight
461 g vs 699 g — lower is better
Both cameras share
- ✓AA filter — Both support aa filter
- ✓ISO min (native) — Both 100
- ✓AF frame coverage — Both 100 %
- ✓Eye AF — Both support eye af
- ✓Animal / bird AF — Both support animal / bird af
- ✓Burst (electronic) — Both 40 fps
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
EOS R8
Pros
- ✓461g — ultralight full-frame body
- ✓Dual Pixel CMOS AF II (same as R6 II)
- ✓4K 60p oversampled — excellent quality
- ✓Accessible $1,499 price
Cons
- –No in-body stabilization
- –Single SD card slot
- –LP-E17 battery — only 290 CIPA shots
- –USB-C 2.0 — no USB video out
Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for wildlife, EOS R6 Mark III or EOS R8?
EOS R8 scores 10.0/10 versus 6.5/10 for EOS R6 Mark III — 40fps burst captures fleeting moments.
What's the resolution difference between the EOS R6 Mark III and EOS R8?
EOS R6 Mark III is 32.5 MP and EOS R8 is 24.2 MP, so the EOS R6 Mark III captures more detail for cropping and large prints.
Do the EOS R6 Mark III and EOS R8 have in-body image stabilization?
EOS R6 Mark III has 8.5-stop in-body image stabilization, while eOS R8 does not have IBIS.
Which shoots faster bursts — the EOS R6 Mark III or the EOS R8?
EOS R6 Mark III reaches 40 fps electronic. EOS R8 reaches 40 fps electronic.
What's the weight difference between the EOS R6 Mark III and EOS R8?
EOS R6 Mark III weighs 699 g and EOS R8 weighs 461 g, so the EOS R8 is 238 g lighter.
Do the EOS R6 Mark III and EOS R8 record 4K video?
EOS R6 Mark III: 4K up to 120p. EOS R8: 4K up to 60p.
Are the EOS R6 Mark III and EOS R8 weather sealed?
EOS R6 Mark III: Yes. EOS R8: Yes.
Which has better battery life?
Rated battery life is 640 shots (CIPA) for the EOS R6 Mark III and 290 shots for the EOS R8, giving the EOS R6 Mark III the edge.
How much does each cost?
EOS R6 Mark III launched at $2,799 and EOS R8 at $1,499. The EOS R8 is $1,300 less.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed May 2026.
Product images courtesy of Canon press materials.