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
Sigma
sd Quattro
Foveon APS-C body delivering exceptional per-pixel detail for stills purists.
$999
Released Feb 2016
EOS R6 Mark III is 9.7 years newer.
Wins
EOS R6 Mark III
Wins
sd Quattro
4 categories tied
TL;DR — Key differences
- AEOS R6 Mark III has higher AF points / zones (1053 vs 49)
- AEOS R6 Mark III has higher Max video bit rate (2600 Mbps vs 150 Mbps)
- AEOS R6 Mark III has higher Burst (electronic) (40 fps vs 15 fps)
- AEOS R6 Mark III has higher ISO max (native) (64,000 vs 25,600)
- AEOS R6 Mark III has higher RAW buffer depth (150 frames vs 60 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)
sd Quattro
138 × 98 × 88 mm
520 g (1.15 lb / 18.34 oz)
EOS R6 Mark III and sd Quattro share virtually identical body dimensions.
EOS R6 Mark III is 179 g heavier than sd Quattro.
Depth (front-to-back): 88mm EOS R6 Mark III · 88mm sd Quattro
Back view, to scale
Width × Height — same proportions as the front of the body.
EOS R6 Mark III
138 × 98 mm
sd Quattro
138 × 98 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
sd Quattro
138 × 88 mm
Sensor size, to scale
EOS R6 Mark III
35.9 × 23.9 mm · Full Frame
858 mm² area
sd Quattro
23.5 × 15.6 mm · APS-C
367 mm² area
2.3× larger sensor area = shallower depth of field and better low-light performance.
Lens ecosystem
Native lens selection
EOS R6 Mark III
✓ more lensesCanon RF
105+
native lenses available
sd Quattro: 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
Why pick one over the other
Reasons to choose
EOS R6 Mark III
AF low-light limit
-6.5 EV vs -5 EV — lower is better
Subject recognition
Adds People, Dogs, Cats…
Dimensions (W×H×D mm)
Adds 138.4, 98.4, 88.4
AF points / zones
1053 vs 49 — higher is better
Max video bit rate
2600 Mbps vs 150 Mbps — higher is better
Burst (electronic)
40 fps vs 15 fps — higher is better
ISO max (native)
64,000 vs 25,600 — higher is better
RAW buffer depth
150 frames vs 60 frames — higher is better
Reasons to choose
sd Quattro
Subject recognition
Adds Human, Animal, Bird…
Dimensions (W×H×D mm)
Adds 138, 98, 88
Weight
520 g vs 699 g — lower is better
EVF magnification
0.78 × vs 0.76 × — higher is better
Both cameras share
- ✓ISO min (native) — Both 100
- ✓Eye AF — Both support eye af
- ✓Animal / bird AF — Both support animal / bird af
- ✓Pre-Capture / Pre-Release — Both support pre-capture / pre-release
- ✓In-body stabilization — Both support in-body stabilization
- ✓Weather sealing — Both support weather sealing
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
sd Quattro
Pros
- ✓Unique Foveon color
- ✓High acutance
- ✓Distinct rendering
Cons
- –Slow
- –Poor high ISO
- –SA mount limited
Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for sports, EOS R6 Mark III or sd Quattro?
EOS R6 Mark III scores 8.5/10 versus 6.0/10 for sd Quattro — 40fps burst — pro-level action capture.
What's the resolution difference between the EOS R6 Mark III and sd Quattro?
EOS R6 Mark III is 32.5 MP and sd Quattro is 29.5 MP, so the EOS R6 Mark III captures more detail for cropping and large prints.
Do the EOS R6 Mark III and sd Quattro have in-body image stabilization?
EOS R6 Mark III has 8.5-stop in-body image stabilization, while sd Quattro has 6-stop in-body image stabilization.
Which shoots faster bursts — the EOS R6 Mark III or the sd Quattro?
EOS R6 Mark III reaches 40 fps electronic. sd Quattro reaches 15 fps electronic.
What's the weight difference between the EOS R6 Mark III and sd Quattro?
EOS R6 Mark III weighs 699 g and sd Quattro weighs 520 g, so the sd Quattro is 179 g lighter.
Do the EOS R6 Mark III and sd Quattro record 4K video?
EOS R6 Mark III: 4K up to 120p. sd Quattro: 4K up to 60p.
Are the EOS R6 Mark III and sd Quattro weather sealed?
EOS R6 Mark III: Yes. sd Quattro: Yes.
Which has better battery life?
Rated battery life is 640 shots (CIPA) for the EOS R6 Mark III and 640 shots for the sd Quattro, giving the sd Quattro the edge.
How much does each cost?
EOS R6 Mark III launched at $2,799 and sd Quattro at $999. The sd Quattro is $1,800 less.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed May 2026.
Product images courtesy of Canon and Sigma press materials.