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
Sigma
fp L
World's smallest full-frame interchangeable camera with 61MP and L-mount.
$2,499
Launch priceReleased Jul 2021
EOS R3 is 2 months newer.
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Wins
EOS R3
Wins
fp L
2 categories tied
Which would you choose?
TL;DR — Key differences
- AEOS R3 has higher AF points / zones (1053 vs 49)
- AEOS R3 has higher Max video bit rate (2600 Mbps vs 150 Mbps)
- AEOS R3 has higher RAW buffer depth (150 frames vs 12 frames)
- AEOS R3 has higher 4K max frame rate (120 fps vs 29.97 fps)
- AEOS R3 has higher ISO max (native) (102,400 vs 25,600)
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
fp L
113 × 70 × 45 mm
427 g (0.94 lb / 15.06 oz)
EOS R3 is 37mm wider, 73mm taller, and 42mm thicker than fp L.
EOS R3 is 588 g heavier than fp L.
Depth (front-to-back): 87mm EOS R3 · 45mm fp L
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
fp L
113 × 70 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
fp L
113 × 45 mm
Sensor size, to scale
EOS R3
36 × 24 mm · Full Frame
864 mm² area
fp L
36 × 24 mm · Full Frame
864 mm² area
Lens ecosystem
Native lens selection
EOS R3
✓ more lensesCanon RF
105+
native lenses available
fp L: 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 R3
AF low-light limit
-7.5 EV vs -5 EV — lower is better
Subject recognition
Adds People, Dogs, Cats…
Dimensions (W×H×D mm)
Adds 150, 142.6, 87.2
Card types
Adds CFexpress Type B, SD UHS-II
AF points / zones
1053 vs 49 — higher is better
Max video bit rate
2600 Mbps vs 150 Mbps — higher is better
RAW buffer depth
150 frames vs 12 frames — higher is better
4K max frame rate
120 fps vs 29.97 fps — higher is better
Reasons to choose
fp L
Subject recognition
Adds Human, Animal, Bird…
Dimensions (W×H×D mm)
Adds 112.6, 69.9, 45.3
Card types
Adds SD, SDHC, SDXC
Codecs
Adds CinemaDNG, MOV
Resolution
61 MP vs 24.1 MP — higher is better
Weight
427 g vs 1015 g — lower is better
Pre-Capture / Pre-Release
Only fp L supports it
EVF magnification
0.78 × vs 0.76 × — 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
- ✓Weather sealing — Both support weather sealing
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
fp L
Pros
- ✓Tiny full-frame
- ✓61MP
- ✓L-mount
- ✓Unique industrial design
Cons
- –No IBIS
- –Small battery
- –Minimal ergonomics
Decided which one is right for you?
Compare live prices for the EOS R3 and fp L at major authorized retailers.
Canon EOS R3
Sigma fp L
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Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for video, EOS R3 or fp L?
EOS R3 scores 9.0/10 versus 3.5/10 for fp L — 6K video for oversampled 4K.
What's the resolution difference between the EOS R3 and fp L?
EOS R3 is 24.1 MP and fp L is 61 MP, so the fp L captures more detail for cropping and large prints.
Do the EOS R3 and fp L have in-body image stabilization?
EOS R3 has 8-stop in-body image stabilization, while fp L does not have IBIS.
Which shoots faster bursts — the EOS R3 or the fp L?
EOS R3 reaches 30 fps electronic. fp L reaches 10 fps electronic.
What's the weight difference between the EOS R3 and fp L?
EOS R3 weighs 1015 g and fp L weighs 427 g, so the fp L is 588 g lighter.
Do the EOS R3 and fp L record 4K video?
EOS R3: 6K RAW (max), 4K up to 120p. fp L: 4K up to 29.97p.
Are the EOS R3 and fp L weather sealed?
EOS R3: Yes. fp L: Yes.
Which has better battery life?
Rated battery life is 620 shots (CIPA) for the EOS R3 and 240 shots for the fp L, giving the EOS R3 the edge.
How much does each cost?
EOS R3 launched at $5,999 and fp L at $2,499. The fp L is $3,500 less.
Can't decide between two? Compare a third camera.
Add any camera to get a three-way EOS R3 vs fp L vs X comparison.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed July 2026.
Product images courtesy of Canon and Sigma press materials.