Canon
EOS R3
Pro 24MP full-frame stacked-sensor body built for sports, news, wildlife, and high-speed hybrid capture.
$5,999
Launch priceReleased Sep 2021
Canon
EOS R8 Mark II
Compact 24.2MP full-frame RF body with 5-axis IBIS (up to 7.5-stop Coordinated Control IS), Dual Pixel CMOS AF II, 40fps electronic bursts, and 6K-oversampled 4K 60p.
$1,899
Launch priceReleased Sep 2026
EOS R8 Mark II is 5 years newer.
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Wins
EOS R3
Wins
EOS R8 Mark II
5 categories tied
Which would you choose?
TL;DR — Key differences
- AEOS R3 has higher Max video bit rate (2600 Mbps vs 250 Mbps)
- AEOS R3 has higher ISO max (native) (102,400 vs 25,600)
- AEOS R3 has higher EVF resolution (5,760,000 vs 2,360,000)
- AEOS R3 has higher RAW buffer depth (150 frames vs 73 frames)
- BEOS R8 Mark II has lower Weight (499 g vs 1015 g)
Key specs at a glance
Size and weight, to scale
📸 Snap this size diff to shareEOS R3
150 × 143 × 87 mm
1015 g (2.24 lb / 35.80 oz)
Credit card
85.6 × 54 mm
for scale
EOS R8 Mark II
131 × 90 × 80 mm
499 g (1.10 lb / 17.60 oz)
EOS R3 is 19mm wider, 53mm taller, and 7mm thicker than EOS R8 Mark II.
EOS R3 is 516 g heavier than EOS R8 Mark II.
Depth (front-to-back): 87mm EOS R3 · 80mm EOS R8 Mark II
Back view, to scale
Width × Height — same proportions as the front of the body.
EOS R3
150 × 143 mm
Credit card
85.6 × 54 mm
EOS R8 Mark II
131 × 90 mm
Top view, to scale
Width × Depth (front-to-back) — see which body is chunkier on the table.
EOS R3
150 × 87 mm
Credit card
85.6 × 54 mm
EOS R8 Mark II
131 × 80 mm
Sensor size, to scale
EOS R3
36 × 24 mm · Full Frame
864 mm² area
EOS R8 Mark II
36 × 24 mm · Full Frame
864 mm² area
Lens ecosystem
Native lens selection
EOS R3
✓ more lensesCanon RF
105+
native lenses available
EOS R8 Mark II
✓ more lensesCanon RF
105+
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 R3
Subject recognition
Adds People, Dogs, Cats…
Codecs
Adds RAW, H.265, H.264
Dimensions (W×H×D mm)
Adds 150, 142.6, 87.2
Card types
Adds CFexpress Type B, SD UHS-II
Max video bit rate
2600 Mbps vs 250 Mbps — higher is better
ISO max (native)
102,400 vs 25,600 — higher is better
EVF resolution
5,760,000 vs 2,360,000 — higher is better
RAW buffer depth
150 frames vs 73 frames — higher is better
Reasons to choose
EOS R8 Mark II
Subject recognition
Adds Human, Animal, Bird…
Codecs
Adds XF-HEVC S
Stabilization modes
Adds IBIS, Coordinated Control IS, Movie Digital IS…
Dimensions (W×H×D mm)
Adds 131.3, 89.9, 79.8
Card types
Adds SD, SDHC, SDXC
Weight
499 g vs 1015 g — lower is better
Pre-Capture / Pre-Release
Only EOS R8 Mark II supports it
Burst (electronic)
40 fps vs 30 fps — higher is better
Both cameras share
- ✓AA filter — Both support aa filter
- ✓ISO min (native) — Both 100
- ✓AF points / zones — Both 1053
- ✓AF frame coverage — Both 100 %
- ✓Eye AF — Both support eye af
- ✓Animal / bird AF — Both support animal / bird af
Pros & cons at a glance
Editorially curated highlights and trade-offs.
EOS R3
Pros
- ✓30fps electronic burst from a stacked full-frame sensor
- ✓Exceptional low-light AF down to -7.5 EV
- ✓Integrated pro body with large LP-E19 battery
- ✓6K RAW video and 4K 120p
- ✓Rugged weather-sealed construction
Cons
- –24MP resolution trails higher-detail rivals
- –Large integrated-grip body
- –Expensive compared with enthusiast full-frame bodies
EOS R8 Mark II
Pros
- ✓Lightest EOS full-frame body with IBIS (546g)
- ✓Up to 7.5-stop Coordinated Control IS
- ✓40fps electronic + 20-frame pre-capture
- ✓Uncropped 6K-oversampled 4K 60p / FHD 180p
- ✓Wi-Fi 6, USB 10 Gbps, headphone jack
Cons
- –Same 24.2MP sensor as original R8
- –Single SD UHS-II slot
- –LP-E17 battery (~340 LCD / 220 EVF shots)
- –No mechanical shutter
Decided which one is right for you?
Compare live prices for the EOS R3 and EOS R8 Mark II at major authorized retailers.
Canon EOS R3
Canon EOS R8 Mark II
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Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for video, EOS R3 or EOS R8 Mark II?
EOS R3 scores 9.0/10 versus 3.5/10 for EOS R8 Mark II — 6K video for oversampled 4K.
What's the resolution difference between the EOS R3 and EOS R8 Mark II?
EOS R3 is 24.1 MP and EOS R8 Mark II is 24.2 MP, so the EOS R8 Mark II captures more detail for cropping and large prints.
Do the EOS R3 and EOS R8 Mark II have in-body image stabilization?
EOS R3 has 8-stop in-body image stabilization, while EOS R8 Mark II has 7.5-stop in-body image stabilization.
Which shoots faster bursts — the EOS R3 or the EOS R8 Mark II?
EOS R3 reaches 30 fps electronic. EOS R8 Mark II reaches 40 fps electronic.
What's the weight difference between the EOS R3 and EOS R8 Mark II?
EOS R3 weighs 1015 g and EOS R8 Mark II weighs 499 g, so the EOS R8 Mark II is 516 g lighter.
Do the EOS R3 and EOS R8 Mark II record 4K video?
EOS R3: 6K RAW (max), 4K up to 120p. EOS R8 Mark II: 4K up to 59.94p.
Are the EOS R3 and EOS R8 Mark II weather sealed?
EOS R3: Yes. EOS R8 Mark II: Yes.
Which has better battery life?
Rated battery life is 620 shots (CIPA) for the EOS R3 and 340 shots for the EOS R8 Mark II, giving the EOS R3 the edge.
How much does each cost?
EOS R3 launched at $5,999 and EOS R8 Mark II at $1,899. The EOS R8 Mark II is $4,100 less.
Can't decide between two? Compare a third camera.
Add any camera to get a three-way EOS R3 vs EOS R8 Mark II vs X comparison.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed September 2026.
Product images courtesy of Canon press materials.