Canon
EOS C70
Super 35 cinema box with RF mount, 4K 120p, Canon Log 2/3, and built-in ND for documentary crews.
$5,499
Released Sep 2020
Sony
Alpha 7R VI
66.8MP fully-stacked full-frame high-resolution body with 30fps bursts, 8K 30p, 4K 120p, and Sony's new BIONZ XR2 engine.
$4,499
Released Jun 2026
Alpha 7R VI is 5.7 years newer.
Wins
EOS C70
Wins
Alpha 7R VI
2 categories tied
TL;DR — Key differences
- BAlpha 7R VI has higher Resolution (66.8 MP vs 8.85 MP)
- BAlpha 7R VI has higher Max video bit rate (600 Mbps vs 200 Mbps)
- BAlpha 7R VI has higher EVF resolution (9,437,184 vs 3,690,000)
- BAlpha 7R VI has higher 4K max frame rate (120 fps vs 60 fps)
- BAlpha 7R VI has higher Burst (electronic) (30 fps vs 20 fps)
Key specs at a glance
Size and weight, to scale
EOS C70
138 × 98 × 88 mm
720 g (1.59 lb / 25.40 oz)
Alpha 7R VI
133 × 97 × 83 mm
713 g (1.57 lb / 25.15 oz)
EOS C70 is 5mm wider, 1mm taller, and 5mm thicker than Alpha 7R VI.
EOS C70 is 7 g heavier than Alpha 7R VI.
Depth (front-to-back): 88mm EOS C70 · 83mm Alpha 7R VI
Back view, to scale
Width × Height — same proportions as the front of the body.
EOS C70
138 × 98 mm
Alpha 7R VI
133 × 97 mm
Top view, to scale
Width × Depth (front-to-back) — see which body is chunkier on the table.
EOS C70
138 × 88 mm
Alpha 7R VI
133 × 83 mm
Sensor size, to scale
EOS C70
36 × 24 mm · Full Frame
864 mm² area
Alpha 7R VI
35.9 × 24 mm · Full Frame
862 mm² area
Lens ecosystem
Native lens selection
EOS C70
Canon RF
105+
native lenses available
Alpha 7R VI
✓ 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 C70
Dimensions (W×H×D mm)
Adds 138, 98, 88
Card types
Adds SD UHS-II
AA filter
Only EOS C70 supports it
AF low-light limit
-6.5 EV vs -6 EV — lower is better
Pre-Capture / Pre-Release
Only EOS C70 supports it
Internal RAW video
Only EOS C70 supports it
Weather sealing
Only EOS C70 supports it
Codecs
Adds ProRes
Reasons to choose
Alpha 7R VI
Dimensions (W×H×D mm)
Adds 132.7, 96.9, 82.9
Card types
Adds CFexpress Type A, SDXC UHS-II
Resolution
66.8 MP vs 8.85 MP — higher is better
Max video bit rate
600 Mbps vs 200 Mbps — higher is better
EVF resolution
9,437,184 vs 3,690,000 — higher is better
Codecs
Adds XAVC HS, XAVC S, XAVC S-I
4K max frame rate
120 fps vs 60 fps — higher is better
Subject recognition
Adds Eye, Insect
Both cameras share
- ✓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
- ✓Card slots — Both 2
- ✓Touchscreen — Both support touchscreen
Pros & cons at a glance
Editorially curated highlights and trade-offs.
EOS C70
Pros
- ✓4K 120p internal
- ✓Built-in ND filters
- ✓Dual pixel AF in cinema form
- ✓RF mount flexibility
Cons
- –Super 35 not full-frame
- –No stills-first ergonomics
- –Large for gimbal work
Alpha 7R VI
Pros
- ✓66.8MP fully-stacked Exmor RS sensor
- ✓30fps blackout-free electronic burst
- ✓8K 30p and 4K 120p video
- ✓8.5-stop in-body stabilization
- ✓9.44M-dot HDR OLED EVF
Cons
- –Very expensive
- –Large files demand fast cards and storage
- –8K workflow can be heavy
Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for sports, EOS C70 or Alpha 7R VI?
EOS C70 scores 8.0/10 versus 5.5/10 for Alpha 7R VI — 20fps burst — fast action ready.
What's the resolution difference between the EOS C70 and Alpha 7R VI?
EOS C70 is 8.85 MP and Alpha 7R VI is 66.8 MP, so the Alpha 7R VI captures more detail for cropping and large prints.
Do the EOS C70 and Alpha 7R VI have in-body image stabilization?
EOS C70 has 7-stop in-body image stabilization, while alpha 7R VI has in-body image stabilization.
Which shoots faster bursts — the EOS C70 or the Alpha 7R VI?
EOS C70 reaches 20 fps electronic. Alpha 7R VI reaches 30 fps electronic.
What's the weight difference between the EOS C70 and Alpha 7R VI?
EOS C70 weighs 720 g and Alpha 7R VI weighs 713 g, so the Alpha 7R VI is 7 g lighter.
Do the EOS C70 and Alpha 7R VI record 4K video?
EOS C70: 4K up to 60p. Alpha 7R VI: 8K (max), 4K up to 120p.
Are the EOS C70 and Alpha 7R VI weather sealed?
EOS C70: Yes. Alpha 7R VI: No.
Which has better battery life?
Rated battery life is 640 shots (CIPA) for the EOS C70 and 600 shots for the Alpha 7R VI, giving the EOS C70 the edge.
How much does each cost?
EOS C70 launched at $5,499 and Alpha 7R VI at $4,499. The Alpha 7R VI 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.