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
Alpha 7C
Smallest full-frame E-mount body with A7 III performance in a travel-friendly package.
$1,799
Released Sep 2020
EOS R6 Mark III is 5.2 years newer.
Wins
EOS R6 Mark III
Wins
Alpha 7C
2 categories tied
TL;DR — Key differences
- 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 10 fps)
- AEOS R6 Mark III has higher 4K max frame rate (120 fps vs 30 fps)
- AEOS R6 Mark III has higher RAW buffer depth (150 frames vs 60 frames)
- AEOS R6 Mark III has higher Card slots (2 vs 1)
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)
Alpha 7C
124 × 71 × 60 mm
509 g (1.12 lb / 17.95 oz)
EOS R6 Mark III is 14mm wider, 27mm taller, and 29mm thicker than Alpha 7C.
EOS R6 Mark III is 190 g heavier than Alpha 7C.
Depth (front-to-back): 88mm EOS R6 Mark III · 60mm Alpha 7C
Back view, to scale
Width × Height — same proportions as the front of the body.
EOS R6 Mark III
138 × 98 mm
Alpha 7C
124 × 71 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
Alpha 7C
124 × 60 mm
Sensor size, to scale
EOS R6 Mark III
35.9 × 23.9 mm · Full Frame
858 mm² area
Alpha 7C
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
Alpha 7C
✓ 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
AF low-light limit
-6.5 EV vs -4 EV — lower is better
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 10 fps — higher is better
4K max frame rate
120 fps vs 30 fps — higher is better
RAW buffer depth
150 frames vs 60 frames — higher is better
Reasons to choose
Alpha 7C
Subject recognition
Adds Human, Animal
Dimensions (W×H×D mm)
Adds 124, 71.1, 59.7
Codecs
Adds XAVC S, AVCHD
Weight
509 g vs 699 g — lower is better
Battery life (CIPA)
740 shots vs 640 shots — higher is better
Both cameras share
- ✓AA filter — Both support aa filter
- ✓ISO min (native) — Both 100
- ✓Eye AF — Both support eye af
- ✓Animal / bird AF — Both support animal / bird af
- ✓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
Alpha 7C
Pros
- ✓Tiny full-frame
- ✓5-axis IBIS
- ✓24MP hybrid
- ✓Great for travel
Cons
- –Small grip
- –Single card slot
- –Superseded by A7C II
Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for sports, EOS R6 Mark III or Alpha 7C?
EOS R6 Mark III scores 8.5/10 versus 4.0/10 for Alpha 7C — 40fps burst — pro-level action capture.
What's the resolution difference between the EOS R6 Mark III and Alpha 7C?
EOS R6 Mark III is 32.5 MP and Alpha 7C 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 Alpha 7C have in-body image stabilization?
EOS R6 Mark III has 8.5-stop in-body image stabilization, while alpha 7C has 5-stop in-body image stabilization.
Which shoots faster bursts — the EOS R6 Mark III or the Alpha 7C?
EOS R6 Mark III reaches 40 fps electronic. Alpha 7C reaches 10 fps electronic.
What's the weight difference between the EOS R6 Mark III and Alpha 7C?
EOS R6 Mark III weighs 699 g and Alpha 7C weighs 509 g, so the Alpha 7C is 190 g lighter.
Do the EOS R6 Mark III and Alpha 7C record 4K video?
EOS R6 Mark III: 4K up to 120p. Alpha 7C: 4K up to 30p.
Are the EOS R6 Mark III and Alpha 7C weather sealed?
EOS R6 Mark III: Yes. Alpha 7C: Yes.
Which has better battery life?
Rated battery life is 640 shots (CIPA) for the EOS R6 Mark III and 740 shots for the Alpha 7C, giving the Alpha 7C the edge.
How much does each cost?
EOS R6 Mark III launched at $2,799 and Alpha 7C at $1,799. The Alpha 7C is $1,000 less.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed May 2026.
Product images courtesy of Canon and Sony press materials.