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 1
Original 50MP stacked flagship for sports and wildlife pros.
$6,499
Released Jan 2021
EOS R6 Mark II is 1.8 years newer.
Wins
EOS R6 Mark II
Wins
Alpha 1
2 categories tied
TL;DR — Key differences
- AEOS R6 Mark II has higher ISO max (native) (102,400 vs 32,000)
- BAlpha 1 has higher EVF resolution (9,437,184 vs 3,690,000)
- AEOS R6 Mark II has higher Max video bit rate (340 Mbps vs 150 Mbps)
- BAlpha 1 has higher Resolution (50.1 MP vs 24.2 MP)
- BAlpha 1 has higher 4K max frame rate (120 fps vs 60 fps)
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 1
129 × 97 × 81 mm
737 g (1.62 lb / 26.00 oz)
EOS R6 Mark II is 10mm wider, 2mm taller, and 8mm thicker than Alpha 1.
EOS R6 Mark II is 57 g lighter than Alpha 1.
Depth (front-to-back): 88mm EOS R6 Mark II · 81mm Alpha 1
Back view, to scale
Width × Height — same proportions as the front of the body.
EOS R6 Mark II
138 × 98 mm
Alpha 1
129 × 97 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 1
129 × 81 mm
Sensor size, to scale
EOS R6 Mark II
35.9 × 23.9 mm · Full Frame
858 mm² area
Alpha 1
35.9 × 24 mm · Full Frame
862 mm² area
Lens ecosystem
Native lens selection
EOS R6 Mark II
Canon RF
105+
native lenses available
Alpha 1
✓ 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 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
ISO max (native)
102,400 vs 32,000 — higher is better
Max video bit rate
340 Mbps vs 150 Mbps — 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
Battery life (CIPA)
760 shots vs 530 shots — higher is better
Reasons to choose
Alpha 1
Subject recognition
Adds Human, Animal, Bird
Dimensions (W×H×D mm)
Adds 128.9, 96.9, 80.8
EVF resolution
9,437,184 vs 3,690,000 — higher is better
Codecs
Adds XAVC HS, XAVC S, XAVC S-I
Resolution
50.1 MP vs 24.2 MP — higher is better
4K max frame rate
120 fps vs 60 fps — higher is better
Card types
Adds CFexpress Type A
EVF refresh rate
240 Hz vs 120 Hz — 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 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 1
Pros
- ✓50MP stacked
- ✓30fps burst
- ✓8K video
- ✓Pro AF
Cons
- –Superseded by A1 II
- –Very expensive
- –Large files
Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for vlogging, EOS R6 Mark II or Alpha 1?
EOS R6 Mark II scores 8.0/10 versus 5.5/10 for Alpha 1 — Fully articulating screen — see yourself while filming.
What's the resolution difference between the EOS R6 Mark II and Alpha 1?
EOS R6 Mark II is 24.2 MP and Alpha 1 is 50.1 MP, so the Alpha 1 captures more detail for cropping and large prints.
Do the EOS R6 Mark II and Alpha 1 have in-body image stabilization?
EOS R6 Mark II has 8-stop in-body image stabilization, while alpha 1 has 5.5-stop in-body image stabilization.
Which shoots faster bursts — the EOS R6 Mark II or the Alpha 1?
EOS R6 Mark II reaches 40 fps electronic. Alpha 1 reaches 30 fps electronic.
What's the weight difference between the EOS R6 Mark II and Alpha 1?
EOS R6 Mark II weighs 680 g and Alpha 1 weighs 737 g, so the EOS R6 Mark II is 57 g lighter.
Do the EOS R6 Mark II and Alpha 1 record 4K video?
EOS R6 Mark II: 4K up to 60p. Alpha 1: 8K (max), 4K up to 120p.
Are the EOS R6 Mark II and Alpha 1 weather sealed?
EOS R6 Mark II: Yes. Alpha 1: Yes.
Which has better battery life?
Rated battery life is 760 shots (CIPA) for the EOS R6 Mark II and 530 shots for the Alpha 1, giving the EOS R6 Mark II the edge.
How much does each cost?
EOS R6 Mark II launched at $2,499 and Alpha 1 at $6,499. The EOS R6 Mark II is $4,000 less.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed May 2026.
Product images courtesy of Canon and Sony press materials.