Canon
EOS R6 V
Video-first 32.5MP full-frame EOS V-series body with 7K RAW 60p, 4K 120p, active cooling, and Canon RF mount.
$2,499
Released May 2026
Sony
Alpha 7R III
42MP workhorse for landscape and studio before the A7R IV/V era.
$3,199
Released Oct 2017
EOS R6 V is 8.6 years newer.
Wins
EOS R6 V
Wins
Alpha 7R III
2 categories tied
TL;DR — Key differences
- AEOS R6 V has higher Max video bit rate (2600 Mbps vs 150 Mbps)
- AEOS R6 V has higher AF points / zones (6097 vs 399)
- AEOS R6 V has higher Burst (electronic) (40 fps vs 10 fps)
- AEOS R6 V has higher 4K max frame rate (120 fps vs 30 fps)
- AEOS R6 V has higher ISO max (native) (64,000 vs 32,000)
Key specs at a glance
Size and weight, to scale
EOS R6 V
142 × 83 × 80 mm
688 g (1.52 lb / 24.27 oz)
Alpha 7R III
127 × 96 × 74 mm
657 g (1.45 lb / 23.18 oz)
EOS R6 V is 12mm shorter than Alpha 7R III but it is also 15mm wider and 6mm thicker.
EOS R6 V is 31 g heavier than Alpha 7R III.
Depth (front-to-back): 80mm EOS R6 V · 74mm Alpha 7R III
Back view, to scale
Width × Height — same proportions as the front of the body.
EOS R6 V
142 × 83 mm
Alpha 7R III
127 × 96 mm
Top view, to scale
Width × Depth (front-to-back) — see which body is chunkier on the table.
EOS R6 V
142 × 80 mm
Alpha 7R III
127 × 74 mm
Sensor size, to scale
EOS R6 V
35.9 × 23.9 mm · Full Frame
858 mm² area
Alpha 7R III
35.9 × 24 mm · Full Frame
862 mm² area
Lens ecosystem
Native lens selection
EOS R6 V
Canon RF
105+
native lenses available
Alpha 7R III
✓ 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 V
AF low-light limit
-6.5 EV vs -3 EV — lower is better
Dimensions (W×H×D mm)
Adds 141.8, 83.3, 79.7
Max video bit rate
2600 Mbps vs 150 Mbps — higher is better
AF points / zones
6097 vs 399 — higher is better
Codecs
Adds RAW, 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
Subject recognition
Adds Bird, Horse, Vehicle…
Reasons to choose
Alpha 7R III
Dimensions (W×H×D mm)
Adds 126.9, 95.6, 73.7
Codecs
Adds XAVC S, AVCHD
Card types
Adds SD UHS-I
Resolution
42.4 MP vs 32.5 MP — higher is better
Weight
657 g vs 688 g — lower is better
Battery life (CIPA)
650 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 V
Pros
- ✓7K RAW 60p and 7K Open Gate recording
- ✓4K DCI/UHD 120p with no crop
- ✓Dual Pixel CMOS AF II with people, animal, and vehicle detection
- ✓Active cooling for long-form recording
- ✓Full-size HDMI and dual CFexpress/SD card recording
Cons
- –No built-in EVF
- –Single CFexpress Type B slot plus one SD slot
- –Video-first body may be less ideal for stills-first shooters
- –Battery grip not supported
Alpha 7R III
Pros
- ✓42MP proven
- ✓10fps with AF
- ✓Dual slots
- ✓Great used value
Cons
- –Superseded
- –No 8K
- –Older AF
Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for wildlife, EOS R6 V or Alpha 7R III?
EOS R6 V scores 10.0/10 versus 4.5/10 for Alpha 7R III — 40fps burst captures fleeting moments.
What's the resolution difference between the EOS R6 V and Alpha 7R III?
EOS R6 V is 32.5 MP and Alpha 7R III is 42.4 MP, so the Alpha 7R III captures more detail for cropping and large prints.
Do the EOS R6 V and Alpha 7R III have in-body image stabilization?
EOS R6 V has 7.5-stop in-body image stabilization, while alpha 7R III has 5.5-stop in-body image stabilization.
Which shoots faster bursts — the EOS R6 V or the Alpha 7R III?
EOS R6 V reaches 40 fps electronic. Alpha 7R III reaches 10 fps electronic.
What's the weight difference between the EOS R6 V and Alpha 7R III?
EOS R6 V weighs 688 g and Alpha 7R III weighs 657 g, so the Alpha 7R III is 31 g lighter.
Do the EOS R6 V and Alpha 7R III record 4K video?
EOS R6 V: 4K up to 120p. Alpha 7R III: 4K up to 30p.
Are the EOS R6 V and Alpha 7R III weather sealed?
EOS R6 V: Yes. Alpha 7R III: Yes.
Which has better battery life?
Rated battery life is 640 shots (CIPA) for the EOS R6 V and 650 shots for the Alpha 7R III, giving the Alpha 7R III the edge.
How much does each cost?
EOS R6 V launched at $2,499 and Alpha 7R III at $3,199. The EOS R6 V is $700 less.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed May 2026.
Product images courtesy of Canon and Sony press materials.