Leica
Q3 43
Q3 variant with 43mm equivalent perspective for classic reportage.
$5,995
Launch priceReleased Jun 2024
OM System
OM-3
Retro-styled MFT body with modern AF and creator-friendly design.
$1,699
Launch priceReleased Jan 2025
OM-3 is 7 months newer.
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Wins
Q3 43
Wins
OM-3
1 categories tied
Which would you choose?
TL;DR — Key differences
- BOM-3 has higher Burst (electronic) (120 fps vs 15 fps)
- AQ3 43 has lower ISO min (native) (50 vs 200)
- AQ3 43 has higher ISO max (native) (100,000 vs 25,600)
- AQ3 43 has higher Resolution (60.3 MP vs 20.4 MP)
- BOM-3 has higher Burst (mechanical) (10 fps vs 4 fps)
Key specs at a glance
Size and weight, to scale
📸 Snap this size diff to shareQ3 43
130 × 80 × 92 mm
743 g (1.64 lb / 26.21 oz)
Credit card
85.6 × 54 mm
for scale
OM-3
139 × 89 × 46 mm
413 g (0.91 lb / 14.57 oz)
Q3 43 is 9mm narrower and 9mm shorter than OM-3 but it is also 46mm thicker.
Q3 43 is 330 g heavier than OM-3.
Depth (front-to-back): 92mm Q3 43 · 46mm OM-3
Back view, to scale
Width × Height — same proportions as the front of the body.
Q3 43
130 × 80 mm
Credit card
85.6 × 54 mm
OM-3
139 × 89 mm
Top view, to scale
Width × Depth (front-to-back) — see which body is chunkier on the table.
Q3 43
130 × 92 mm
Credit card
85.6 × 54 mm
OM-3
139 × 46 mm
Sensor size, to scale
Q3 43
36 × 24 mm · Full Frame
864 mm² area
OM-3
17.4 × 13 mm · Compact / large-type
226 mm² area
3.8× larger sensor area = shallower depth of field and better low-light performance.
Lens ecosystem
Native lens selection
Q3 43: mount data unavailable
OM-3
✓ more lensesMicro Four Thirds
130+
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
Q3 43
Subject recognition
Adds Human, Face, Eye…
Dimensions (W×H×D mm)
Adds 130, 80, 92
Card types
Adds SD UHS-II
ISO min (native)
50 vs 200 — lower is better
ISO max (native)
100,000 vs 25,600 — higher is better
Resolution
60.3 MP vs 20.4 MP — higher is better
EVF resolution
5,760,000 vs 2,360,000 — higher is better
Codecs
Adds ProRes
Reasons to choose
OM-3
Subject recognition
Adds People, Birds, Animals…
Dimensions (W×H×D mm)
Adds 139.3, 88.9, 45.8
Card types
Adds SD, SDHC, SDXC
Burst (electronic)
120 fps vs 15 fps — higher is better
Burst (mechanical)
10 fps vs 4 fps — higher is better
Pre-Capture / Pre-Release
Only OM-3 supports it
Codecs
Adds MOV, MPEG-4 AVC
In-body stabilization (IBIS)
Only OM-3 supports it
Both cameras share
- ✓Eye AF — Both support eye af
- ✓Animal / bird AF — Both support animal / bird af
- ✓Weather sealing — Both support weather sealing
- ✓Card slots — Both 1
- ✓Touchscreen — Both support touchscreen
- ✓Wi-Fi — Both support wi-fi
Pros & cons at a glance
Editorially curated highlights and trade-offs.
Q3 43
Pros
- ✓Unique 43mm view
- ✓60MP
- ✓Premium compact
Cons
- –Fixed lens
- –Expensive
- –Niche focal length
OM-3
Pros
- ✓Retro design
- ✓Modern AF
- ✓Compact
Cons
- –MFT sensor
- –Premium for MFT
- –Smaller lens selection
Decided which one is right for you?
Compare live prices for the Q3 43 and OM-3 at major authorized retailers.
Leica Q3 43
OM System OM-3
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Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for landscape, Q3 43 or OM-3?
Q3 43 scores 8.0/10 versus 2.5/10 for OM-3 — 60.3MP — massive detail for large prints.
What's the resolution difference between the Q3 43 and OM-3?
Q3 43 is 60.3 MP and OM-3 is 20.4 MP, so the Q3 43 captures more detail for cropping and large prints.
Do the Q3 43 and OM-3 have in-body image stabilization?
Q3 43 does not have IBIS, while OM-3 has 6.5-stop in-body image stabilization.
Which shoots faster bursts — the Q3 43 or the OM-3?
Q3 43 reaches 15 fps electronic. OM-3 reaches 120 fps electronic.
What's the weight difference between the Q3 43 and OM-3?
Q3 43 weighs 743 g and OM-3 weighs 413 g, so the OM-3 is 330 g lighter.
Do the Q3 43 and OM-3 record 4K video?
Q3 43: 8K (max), 4K up to 60p. OM-3: 4K up to 59.94p.
Are the Q3 43 and OM-3 weather sealed?
Q3 43: Yes. OM-3: Yes.
Which has better battery life?
Rated battery life is 350 shots (CIPA) for the Q3 43 and 640 shots for the OM-3, giving the OM-3 the edge.
How much does each cost?
Q3 43 launched at $5,995 and OM-3 at $1,699. The OM-3 is $4,296 less.
Can't decide between two? Compare a third camera.
Add any camera to get a three-way Q3 43 vs OM-3 vs X comparison.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed September 2026.
Product images courtesy of Leica and OM System press materials.