Canon
EOS R6 Mark II
Versatile 24.2MP full-frame hybrid with class-leading AF and 4K 60p video.
$2,499
Released Nov 2022
Sony
Alpha 7 IV
33MP hybrid all-rounder with 10-bit 4K 60p and AI-powered subject tracking.
$2,499
Released Oct 2021
EOS R6 Mark II is 1.1 years newer.
Wins
EOS R6 Mark II
Wins
Alpha 7 IV
4 categories tied
TL;DR — Key differences
- BAlpha 7 IV has higher RAW buffer depth (828 frames vs 180 frames)
- AEOS R6 Mark II has higher Burst (electronic) (40 fps vs 10 fps)
- AEOS R6 Mark II has higher ISO max (native) (102,400 vs 51,200)
- BAlpha 7 IV has higher Max video bit rate (600 Mbps vs 340 Mbps)
- AEOS R6 Mark II has higher IBIS effectiveness (8 stops vs 5.5 stops)
Key specs at a glance
Size and weight, to scale
EOS R6 Mark II
138 × 98 × 88 mm
680 g (1.50 lb / 23.99 oz)
Alpha 7 IV
131 × 96 × 80 mm
658 g (1.45 lb / 23.21 oz)
EOS R6 Mark II is 7mm wider, 2mm taller, and 9mm thicker than Alpha 7 IV.
EOS R6 Mark II is 22 g heavier than Alpha 7 IV.
Depth (front-to-back): 88mm EOS R6 Mark II · 80mm Alpha 7 IV
Back view, to scale
Width × Height — same proportions as the front of the body.
EOS R6 Mark II
138 × 98 mm
Alpha 7 IV
131 × 96 mm
Top view, to scale
Width × Depth (front-to-back) — see which body is chunkier on the table.
EOS R6 Mark II
138 × 88 mm
Alpha 7 IV
131 × 80 mm
Sensor size, to scale
EOS R6 Mark II
35.9 × 23.9 mm · Full Frame
858 mm² area
Alpha 7 IV
35.9 × 23.9 mm · Full Frame
858 mm² area
Lens ecosystem
Native lens selection
EOS R6 Mark II
Canon RF
105+
native lenses available
Alpha 7 IV
✓ 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
The verdict
With no price gap at $2499, the most decisive technical difference is the Canon's 40 fps electronic burst speed versus the Sony's higher 33-megapixel sensor resolution.
Choose the Canon EOS R6 Mark II if you shoot fast-moving subjects like professional sports or unpredictable wildlife, as it features a 40 fps electronic shutter to capture every moment of peak action.
Choose the Sony Alpha 7 IV if you require high-resolution files for detailed landscape photography or large physical prints, as its sensor provides 33 megapixels for significantly greater cropping flexibility than the Canon's 24.2 megapixels.
Why pick one over the other
Reasons to choose
EOS R6 Mark II
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
Burst (electronic)
40 fps vs 10 fps — higher is better
ISO max (native)
102,400 vs 51,200 — higher is better
Pre-Capture / Pre-Release
Only EOS R6 Mark II supports it
IBIS effectiveness
8 stops vs 5.5 stops — higher is better
AF points / zones
1053 vs 759 — higher is better
Reasons to choose
Alpha 7 IV
Subject recognition
Adds Human, Animal, Bird…
Dimensions (W×H×D mm)
Adds 131.3, 96.4, 79.8
RAW buffer depth
828 frames vs 180 frames — higher is better
Codecs
Adds XAVC HS, XAVC S, XAVC S-I
Card types
Adds CFexpress Type A
Max video bit rate
600 Mbps vs 340 Mbps — higher is better
Resolution
33 MP vs 24.2 MP — higher is better
Weight
658 g vs 680 g — lower 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
- ✓4K max frame rate — Both 60 fps
- ✓Internal RAW video — Both support internal raw video
Pros & cons at a glance
Editorially curated highlights and trade-offs.
EOS R6 Mark II
Pros
- ✓Up to 40fps electronic burst
- ✓4K 60p oversampled from 6K
- ✓Dual Pixel CMOS AF II — superb subject tracking
- ✓8-stop IBIS
- ✓Fully articulating touchscreen
Cons
- –24.2MP may feel limiting for large prints
- –No CFexpress on base body
- –Short battery life vs. A7 IV
Alpha 7 IV
Pros
- ✓33MP — more detail for cropping and print
- ✓10-bit 4K 60p (Super35 crop) / 4K 30p full-frame
- ✓Full-size HDMI port
- ✓759 phase-detect AF points
Cons
- –4K 60p requires Super35 crop
- –10fps burst lags behind R6 II at 40fps
- –Complex menu system
Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for sports, EOS R6 Mark II or Alpha 7 IV?
EOS R6 Mark II scores 8.5/10 versus 6.0/10 for Alpha 7 IV — 40fps burst — pro-level action capture.
What's the resolution difference between the EOS R6 Mark II and Alpha 7 IV?
EOS R6 Mark II is 24.2 MP and Alpha 7 IV is 33 MP, so the Alpha 7 IV captures more detail for cropping and large prints.
Do the EOS R6 Mark II and Alpha 7 IV have in-body image stabilization?
EOS R6 Mark II has 8-stop in-body image stabilization, while alpha 7 IV has 5.5-stop in-body image stabilization.
Which shoots faster bursts — the EOS R6 Mark II or the Alpha 7 IV?
EOS R6 Mark II reaches 40 fps electronic. Alpha 7 IV reaches 10 fps electronic.
What's the weight difference between the EOS R6 Mark II and Alpha 7 IV?
EOS R6 Mark II weighs 680 g and Alpha 7 IV weighs 658 g, so the Alpha 7 IV is 22 g lighter.
Do the EOS R6 Mark II and Alpha 7 IV record 4K video?
EOS R6 Mark II: 4K up to 60p. Alpha 7 IV: 4K up to 60p.
Are the EOS R6 Mark II and Alpha 7 IV weather sealed?
EOS R6 Mark II: Yes. Alpha 7 IV: Yes.
Which has better battery life?
Rated battery life is 760 shots (CIPA) for the EOS R6 Mark II and 580 shots for the Alpha 7 IV, giving the EOS R6 Mark II the edge.
How much does each cost?
Both launched at $2,499.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed May 2026.
Product images courtesy of Canon and Sony press materials.