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 II
Compact 33MP full-frame with AI AF, 4K 60p, and travel-friendly body.
$2,199
Released Oct 2023
EOS R6 Mark III is 2.1 years newer.
Wins
EOS R6 Mark III
Wins
Alpha 7C II
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 RAW buffer depth (150 frames vs 60 frames)
- AEOS R6 Mark III has higher 4K max frame rate (120 fps vs 60 fps)
- 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 II
124 × 71 × 63 mm
514 g (1.13 lb / 18.13 oz)
EOS R6 Mark III is 14mm wider, 27mm taller, and 25mm thicker than Alpha 7C II.
EOS R6 Mark III is 185 g heavier than Alpha 7C II.
Depth (front-to-back): 88mm EOS R6 Mark III · 63mm Alpha 7C II
Back view, to scale
Width × Height — same proportions as the front of the body.
EOS R6 Mark III
138 × 98 mm
Alpha 7C II
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 II
124 × 63 mm
Sensor size, to scale
EOS R6 Mark III
35.9 × 23.9 mm · Full Frame
858 mm² area
Alpha 7C II
35.9 × 23.9 mm · Full Frame
858 mm² area
Lens ecosystem
Native lens selection
EOS R6 Mark III
Canon RF
105+
native lenses available
Alpha 7C II
✓ 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
Burst (electronic)
40 fps vs 10 fps — higher is better
RAW buffer depth
150 frames vs 60 frames — higher is better
Codecs
Adds CRM, XF-HEVC S, XF-AVC S
Pre-Capture / Pre-Release
Only EOS R6 Mark III supports it
Reasons to choose
Alpha 7C II
Subject recognition
Adds Human, Animal, Bird…
Dimensions (W×H×D mm)
Adds 124, 71.1, 63.4
Codecs
Adds XAVC HS, XAVC S, XAVC S-I
Weight
514 g vs 699 g — lower is better
Resolution
33 MP vs 32.5 MP — 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
- ✓Internal RAW video — Both support internal raw video
- ✓In-body stabilization — Both support in-body stabilization
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 II
Pros
- ✓Compact full-frame
- ✓33MP sensor
- ✓AI subject recognition
- ✓4K 60p
Cons
- –Small grip
- –Single card slot
- –Micro HDMI
Decided which one is right for you?
Compare live prices for the EOS R6 Mark III and Alpha 7C II at major authorized retailers.
Canon EOS R6 Mark III
Sony Alpha 7C 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 II?
EOS R6 Mark III scores 8.5/10 versus 5.0/10 for Alpha 7C II — 40fps burst — pro-level action capture.
What's the resolution difference between the EOS R6 Mark III and Alpha 7C II?
EOS R6 Mark III is 32.5 MP and Alpha 7C II is 33 MP, so the Alpha 7C II captures more detail for cropping and large prints.
Do the EOS R6 Mark III and Alpha 7C II have in-body image stabilization?
EOS R6 Mark III has 8.5-stop in-body image stabilization, while alpha 7C II has 7-stop in-body image stabilization.
Which shoots faster bursts — the EOS R6 Mark III or the Alpha 7C II?
EOS R6 Mark III reaches 40 fps electronic. Alpha 7C II reaches 10 fps electronic.
What's the weight difference between the EOS R6 Mark III and Alpha 7C II?
EOS R6 Mark III weighs 699 g and Alpha 7C II weighs 514 g, so the Alpha 7C II is 185 g lighter.
Do the EOS R6 Mark III and Alpha 7C II record 4K video?
EOS R6 Mark III: 4K up to 120p. Alpha 7C II: 4K up to 60p.
Are the EOS R6 Mark III and Alpha 7C II weather sealed?
EOS R6 Mark III: Yes. Alpha 7C II: Yes.
Which has better battery life?
Rated battery life is 640 shots (CIPA) for the EOS R6 Mark III and 540 shots for the Alpha 7C II, giving the EOS R6 Mark III the edge.
How much does each cost?
EOS R6 Mark III launched at $2,799 and Alpha 7C II at $2,199. The Alpha 7C II is $600 less.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed May 2026.
Product images courtesy of Canon and Sony press materials.