Canon
EOS R6 Mark III
Hybrid 32.5MP full-frame RF body with 7K RAW video, 40fps electronic burst, 8.5-stop IBIS, and Dual Pixel CMOS AF II.
$2,799
Released Nov 2025
OM System
OM-5
Compact weather-sealed MFT for travel and outdoor photography.
$1,199
Released Nov 2022
EOS R6 Mark III is 3 years newer.
Wins
EOS R6 Mark III
Wins
OM-5
3 categories tied
TL;DR — Key differences
- AEOS R6 Mark III has higher Max video bit rate (2600 Mbps vs 150 Mbps)
- AEOS R6 Mark III has higher AF points / zones (1053 vs 121)
- AEOS R6 Mark III has higher 4K max frame rate (120 fps vs 30 fps)
- AEOS R6 Mark III has higher Card slots (2 vs 1)
- BOM-5 has lower Weight (414 g vs 699 g)
Key specs at a glance
Size and weight, to scale
EOS R6 Mark III
138 × 98 × 88 mm
699 g (1.54 lb / 24.66 oz)
OM-5
125 × 85 × 50 mm
414 g (0.91 lb / 14.60 oz)
EOS R6 Mark III is 13mm wider, 13mm taller, and 39mm thicker than OM-5.
EOS R6 Mark III is 285 g heavier than OM-5.
Depth (front-to-back): 88mm EOS R6 Mark III · 50mm OM-5
Back view, to scale
Width × Height — same proportions as the front of the body.
EOS R6 Mark III
138 × 98 mm
OM-5
125 × 85 mm
Top view, to scale
Width × Depth (front-to-back) — see which body is chunkier on the table.
EOS R6 Mark III
138 × 88 mm
OM-5
125 × 50 mm
Sensor size, to scale
EOS R6 Mark III
35.9 × 23.9 mm · Full Frame
858 mm² area
OM-5
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
EOS R6 Mark III
Canon RF
105+
native lenses available
OM-5
✓ 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
EOS R6 Mark III
Dimensions (W×H×D mm)
Adds 138.4, 98.4, 88.4
Max video bit rate
2600 Mbps vs 150 Mbps — higher is better
AF points / zones
1053 vs 121 — higher is better
4K max frame rate
120 fps vs 30 fps — higher is better
Subject recognition
Adds Dogs, Cats, Horses…
Codecs
Adds CRM, XF-HEVC S, XF-AVC S
AA filter
Only EOS R6 Mark III supports it
Internal RAW video
Only EOS R6 Mark III supports it
Reasons to choose
OM-5
AF low-light limit
-8 EV vs -6.5 EV — lower is better
Dimensions (W×H×D mm)
Adds 125.3, 85.2, 49.7
Subject recognition
Adds Animals, Motorsports, Airplanes
Card types
Adds SD UHS-I
Weight
414 g vs 699 g — lower is better
ISO max (native)
102,400 vs 64,000 — higher is better
Codecs
Adds MOV
ISO min (native)
80 vs 100 — lower is better
Both cameras share
- ✓AF frame coverage — Both 100 %
- ✓Eye AF — Both support eye af
- ✓Animal / bird AF — Both support animal / bird af
- ✓Pre-Capture / Pre-Release — Both support pre-capture / pre-release
- ✓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 Mark III
Pros
- ✓32.5MP full-frame sensor
- ✓7K RAW video & 4K 120p
- ✓40fps electronic burst with Pre-Continuous
- ✓8.5-stop IBIS
Cons
- –Single CFexpress Type B + SD slot
- –Smaller LCD than R5 II
- –LP-E6P required for full features
OM-5
Pros
- ✓Compact
- ✓IP53 sealing
- ✓Computational features
Cons
- –No grip extension
- –MFT sensor
- –Single slot
Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for landscape, EOS R6 Mark III or OM-5?
EOS R6 Mark III scores 7.5/10 versus 2.5/10 for OM-5 — 32.5MP — ample resolution.
What's the resolution difference between the EOS R6 Mark III and OM-5?
EOS R6 Mark III is 32.5 MP and OM-5 is 20.4 MP, so the EOS R6 Mark III captures more detail for cropping and large prints.
Do the EOS R6 Mark III and OM-5 have in-body image stabilization?
EOS R6 Mark III has 8.5-stop in-body image stabilization, while oM-5 has 6.5-stop in-body image stabilization.
Which shoots faster bursts — the EOS R6 Mark III or the OM-5?
EOS R6 Mark III reaches 40 fps electronic. OM-5 reaches 30 fps electronic.
What's the weight difference between the EOS R6 Mark III and OM-5?
EOS R6 Mark III weighs 699 g and OM-5 weighs 414 g, so the OM-5 is 285 g lighter.
Do the EOS R6 Mark III and OM-5 record 4K video?
EOS R6 Mark III: 4K up to 120p. OM-5: 4K up to 30p.
Are the EOS R6 Mark III and OM-5 weather sealed?
EOS R6 Mark III: Yes. OM-5: Yes.
Which has better battery life?
Rated battery life is 640 shots (CIPA) for the EOS R6 Mark III and 640 shots for the OM-5, giving the OM-5 the edge.
How much does each cost?
EOS R6 Mark III launched at $2,799 and OM-5 at $1,199. The OM-5 is $1,600 less.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed May 2026.
Product images courtesy of Canon and OM System press materials.