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
Launch priceReleased Nov 2025
Sigma
fp L
World's smallest full-frame interchangeable camera with 61MP and L-mount.
$2,499
Launch priceReleased Jul 2021
EOS R6 Mark III is 4.3 years newer.
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Wins
EOS R6 Mark III
Wins
fp L
2 categories tied
Which would you choose?
TL;DR — Key differences
- AEOS R6 Mark III has higher AF points / zones (1053 vs 49)
- AEOS R6 Mark III has higher Max video bit rate (2600 Mbps vs 150 Mbps)
- AEOS R6 Mark III has higher RAW buffer depth (150 frames vs 12 frames)
- AEOS R6 Mark III has higher 4K max frame rate (120 fps vs 29.97 fps)
- AEOS R6 Mark III has higher Burst (electronic) (40 fps vs 10 fps)
Key specs at a glance
Size and weight, to scale
📸 Snap this size diff to share
EOS R6 Mark III
138 × 98 × 88 mm
699 g (1.54 lb / 24.66 oz)
Credit card
85.6 × 54 mm
for scale
fp L
113 × 70 × 45 mm
427 g (0.94 lb / 15.06 oz)
EOS R6 Mark III is 26mm wider, 29mm taller, and 43mm thicker than fp L.
EOS R6 Mark III is 272 g heavier than fp L.
Depth (front-to-back): 88mm EOS R6 Mark III · 45mm fp L
Back view, to scale
Width × Height — same proportions as the front of the body.
EOS R6 Mark III
138 × 98 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 R6 Mark III
138 × 88 mm
Credit card
85.6 × 54 mm
fp L
113 × 45 mm
Sensor size, to scale
EOS R6 Mark III
35.9 × 23.9 mm · Full Frame
858 mm² area
fp L
36 × 24 mm · Full Frame
864 mm² area
Lens ecosystem
Native lens selection
EOS R6 Mark III
✓ 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 R6 Mark III
AF low-light limit
-6.5 EV vs -5 EV — lower is better
Subject recognition
Adds People, Dogs, Cats…
Dimensions (W×H×D mm)
Adds 138.4, 98.4, 88.4
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
Codecs
Adds CRM, XF-HEVC S, XF-AVC S…
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 32.5 MP — higher is better
Weight
427 g vs 699 g — lower is better
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
- ✓Pre-Capture / Pre-Release — Both support pre-capture / pre-release
- ✓Internal RAW video — Both support internal raw video
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
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 R6 Mark III and fp L at major authorized retailers.
Canon EOS R6 Mark III
Sigma fp L
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Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for sports, EOS R6 Mark III or fp L?
EOS R6 Mark III scores 10.0/10 versus 6.5/10 for fp L — 40fps burst — pro-level action capture.
What's the resolution difference between the EOS R6 Mark III and fp L?
EOS R6 Mark III is 32.5 MP and fp L is 61 MP, so the fp L captures more detail for cropping and large prints.
Do the EOS R6 Mark III and fp L have in-body image stabilization?
EOS R6 Mark III has 8.5-stop in-body image stabilization, while fp L does not have IBIS.
Which shoots faster bursts — the EOS R6 Mark III or the fp L?
EOS R6 Mark III reaches 40 fps electronic. fp L reaches 10 fps electronic.
What's the weight difference between the EOS R6 Mark III and fp L?
EOS R6 Mark III weighs 699 g and fp L weighs 427 g, so the fp L is 272 g lighter.
Do the EOS R6 Mark III and fp L record 4K video?
EOS R6 Mark III: 4K up to 120p. fp L: 4K up to 29.97p.
Are the EOS R6 Mark III and fp L weather sealed?
EOS R6 Mark III: Yes. fp L: Yes.
Which has better battery life?
Rated battery life is 640 shots (CIPA) for the EOS R6 Mark III and 240 shots for the fp L, giving the EOS R6 Mark III the edge.
How much does each cost?
EOS R6 Mark III launched at $2,799 and fp L at $2,499. The fp L is $300 less.
Can't decide between two? Compare a third camera.
Add any camera to get a three-way EOS R6 Mark III 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.