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 7 II
First affordable IBIS full-frame mirrorless that changed the industry.
$1,999
Released Nov 2014
EOS R6 Mark III is 11 years newer.
Wins
EOS R6 Mark III
Wins
Alpha 7 II
2 categories tied
Check current prices
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TL;DR — Key differences
- AEOS R6 Mark III has higher 4K max frame rate (120 fps vs 0 fps)
- AEOS R6 Mark III has higher Max video bit rate (2600 Mbps vs 150 Mbps)
- AEOS R6 Mark III has higher AF points / zones (1053 vs 117)
- AEOS R6 Mark III has higher Burst (electronic) (40 fps vs 5 fps)
- AEOS R6 Mark III has higher ISO max (native) (64,000 vs 25,600)
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 7 II
127 × 96 × 60 mm
599 g (1.32 lb / 21.13 oz)
EOS R6 Mark III is 12mm wider, 3mm taller, and 29mm thicker than Alpha 7 II.
EOS R6 Mark III is 100 g heavier than Alpha 7 II.
Depth (front-to-back): 88mm EOS R6 Mark III · 60mm Alpha 7 II
Back view, to scale
Width × Height — same proportions as the front of the body.
EOS R6 Mark III
138 × 98 mm
Alpha 7 II
127 × 96 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 7 II
127 × 60 mm
Sensor size, to scale
EOS R6 Mark III
35.9 × 23.9 mm · Full Frame
858 mm² area
Alpha 7 II
35.8 × 23.9 mm · Full Frame
856 mm² area
Lens ecosystem
Native lens selection
EOS R6 Mark III
Canon RF
105+
native lenses available
Alpha 7 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 -1 EV — lower is better
Subject recognition
Adds People, Dogs, Cats…
4K max frame rate
120 fps vs 0 fps — higher is better
Dimensions (W×H×D mm)
Adds 138.4, 98.4, 88.4
Card types
Adds CFexpress Type B, SD UHS-II
Max video bit rate
2600 Mbps vs 150 Mbps — higher is better
AF points / zones
1053 vs 117 — higher is better
Burst (electronic)
40 fps vs 5 fps — higher is better
Reasons to choose
Alpha 7 II
Subject recognition
Adds Human
Dimensions (W×H×D mm)
Adds 126.9, 95.7, 59.7
Card types
Adds SD UHS-I
Codecs
Adds XAVC S, AVCHD, MP4
Weight
599 g vs 699 g — lower is better
Both cameras share
- ✓AA filter — Both support aa filter
- ✓ISO min (native) — Both 100
- ✓Eye AF — Both support eye af
- ✓In-body stabilization — Both support in-body stabilization
- ✓Weather sealing — Both support weather sealing
- ✓EVF refresh rate — Both 120 Hz
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 7 II
Pros
- ✓Historic IBIS FF
- ✓Affordable used
- ✓Huge lens catalog
Cons
- –Very dated AF
- –No 4K
- –Superseded many times
Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for sports, EOS R6 Mark III or Alpha 7 II?
EOS R6 Mark III scores 8.5/10 versus 1.5/10 for Alpha 7 II — 40fps burst — pro-level action capture.
What's the resolution difference between the EOS R6 Mark III and Alpha 7 II?
EOS R6 Mark III is 32.5 MP and Alpha 7 II is 24.3 MP, so the EOS R6 Mark III captures more detail for cropping and large prints.
Do the EOS R6 Mark III and Alpha 7 II have in-body image stabilization?
EOS R6 Mark III has 8.5-stop in-body image stabilization, while alpha 7 II has 4.5-stop in-body image stabilization.
Which shoots faster bursts — the EOS R6 Mark III or the Alpha 7 II?
EOS R6 Mark III reaches 40 fps electronic. Alpha 7 II reaches 5 fps electronic.
What's the weight difference between the EOS R6 Mark III and Alpha 7 II?
EOS R6 Mark III weighs 699 g and Alpha 7 II weighs 599 g, so the Alpha 7 II is 100 g lighter.
Do the EOS R6 Mark III and Alpha 7 II record 4K video?
EOS R6 Mark III: 4K up to 120p. Alpha 7 II: Full HD.
Are the EOS R6 Mark III and Alpha 7 II weather sealed?
EOS R6 Mark III: Yes. Alpha 7 II: Yes.
Which has better battery life?
Rated battery life is 640 shots (CIPA) for the EOS R6 Mark III and 350 shots for the Alpha 7 II, giving the EOS R6 Mark III the edge.
How much does each cost?
EOS R6 Mark III launched at $2,799 and Alpha 7 II at $1,999. The Alpha 7 II is $800 less.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed May 2026.
Product images courtesy of Canon and Sony press materials.