Canon
EOS R1
Flagship 24.2MP full-frame BSI stacked RF body with 40fps burst, Dual Pixel Intelligent AF, 6K RAW, and 9.44M-dot EVF.
$6,299
Released Jul 2024
Leica
Q3 43
Q3 variant with 43mm equivalent perspective for classic reportage.
$5,995
Released Jun 2024
Released within a month of each other.
Wins
EOS R1
Wins
Q3 43
Check current prices
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TL;DR — Key differences
- AEOS R1 has higher Burst (mechanical) (12 fps vs 4 fps)
- AEOS R1 has higher Burst (electronic) (40 fps vs 15 fps)
- BQ3 43 has higher Resolution (60.3 MP vs 24.2 MP)
- BQ3 43 has lower ISO min (native) (50 vs 100)
- AEOS R1 has higher 4K max frame rate (120 fps vs 60 fps)
Key specs at a glance
Size and weight, to scale
EOS R1
158 × 150 × 87 mm
1115 g (2.46 lb / 39.33 oz)
Q3 43
130 × 80 × 92 mm
743 g (1.64 lb / 26.21 oz)
EOS R1 is 5mm thinner than Q3 43 but it is also 28mm wider and 70mm taller.
EOS R1 is 372 g heavier than Q3 43.
Depth (front-to-back): 87mm EOS R1 · 92mm Q3 43
Back view, to scale
Width × Height — same proportions as the front of the body.
EOS R1
158 × 150 mm
Q3 43
130 × 80 mm
Top view, to scale
Width × Depth (front-to-back) — see which body is chunkier on the table.
EOS R1
158 × 87 mm
Q3 43
130 × 92 mm
Sensor size, to scale
EOS R1
36 × 24 mm · Full Frame
864 mm² area
Q3 43
36 × 24 mm · Full Frame
864 mm² area
Lens ecosystem
Native lens selection
EOS R1
✓ more lensesCanon RF
105+
native lenses available
Q3 43: mount data unavailable
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 R1
Subject recognition
Adds People, Dogs, Cats…
Dimensions (W×H×D mm)
Adds 157.6, 149.5, 87.3
Card types
Adds CFexpress Type B, CFexpress Type B
Burst (mechanical)
12 fps vs 4 fps — higher is better
Burst (electronic)
40 fps vs 15 fps — higher is better
Codecs
Adds RAW, XF-HEVC S, XF-AVC S
AA filter
Only EOS R1 supports it
Pre-Capture / Pre-Release
Only EOS R1 supports it
Reasons to choose
Q3 43
Subject recognition
Adds Human, Face, Eye…
Dimensions (W×H×D mm)
Adds 130, 80, 92
Card types
Adds SD UHS-II
Resolution
60.3 MP vs 24.2 MP — higher is better
ISO min (native)
50 vs 100 — lower is better
Weight
743 g vs 1115 g — lower is better
Codecs
Adds ProRes
Both cameras share
- ✓Eye AF — Both support eye af
- ✓Animal / bird AF — Both support animal / bird af
- ✓Weather sealing — Both support weather sealing
- ✓Touchscreen — Both support touchscreen
- ✓Wi-Fi — Both support wi-fi
- ✓Bluetooth — Both support bluetooth
Pros & cons at a glance
Editorially curated highlights and trade-offs.
EOS R1
Pros
- ✓40fps electronic burst
- ✓24.2MP BSI stacked full-frame sensor
- ✓Dual Pixel Intelligent AF
- ✓6K RAW and 4K 120p video
- ✓Dual CFexpress Type B slots
Cons
- –24MP resolution
- –Very expensive
- –Large integrated-grip body
Q3 43
Pros
- ✓Unique 43mm view
- ✓60MP
- ✓Premium compact
Cons
- –Fixed lens
- –Expensive
- –Niche focal length
Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for sports, EOS R1 or Q3 43?
EOS R1 scores 8.5/10 versus 4.5/10 for Q3 43 — 40fps burst — pro-level action capture.
What's the resolution difference between the EOS R1 and Q3 43?
EOS R1 is 24.2 MP and Q3 43 is 60.3 MP, so the Q3 43 captures more detail for cropping and large prints.
Do the EOS R1 and Q3 43 have in-body image stabilization?
EOS R1 has 8.5-stop in-body image stabilization, while q3 43 does not have IBIS.
Which shoots faster bursts — the EOS R1 or the Q3 43?
EOS R1 reaches 40 fps electronic. Q3 43 reaches 15 fps electronic.
What's the weight difference between the EOS R1 and Q3 43?
EOS R1 weighs 1115 g and Q3 43 weighs 743 g, so the Q3 43 is 372 g lighter.
Do the EOS R1 and Q3 43 record 4K video?
EOS R1: 6K RAW (max), 4K up to 120p. Q3 43: 8K (max), 4K up to 60p.
Are the EOS R1 and Q3 43 weather sealed?
EOS R1: Yes. Q3 43: Yes.
How much does each cost?
EOS R1 launched at $6,299 and Q3 43 at $5,995. The Q3 43 is $304 less.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed May 2026.
Product images courtesy of Canon and Leica press materials.