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
Sigma
fp L
World's smallest full-frame interchangeable camera with 61MP and L-mount.
$2,499
Released Jul 2021
EOS R6 Mark III is 4.3 years newer.
Wins
EOS R6 Mark III
Wins
fp L
4 categories tied
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 Burst (electronic) (40 fps vs 15 fps)
- AEOS R6 Mark III has higher ISO max (native) (64,000 vs 25,600)
- AEOS R6 Mark III has higher RAW buffer depth (150 frames vs 60 frames)
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)
fp L
138 × 98 × 88 mm
720 g (1.59 lb / 25.40 oz)
EOS R6 Mark III and fp L share virtually identical body dimensions.
EOS R6 Mark III is 21 g lighter than fp L.
Depth (front-to-back): 88mm EOS R6 Mark III · 88mm fp L
Back view, to scale
Width × Height — same proportions as the front of the body.
EOS R6 Mark III
138 × 98 mm
fp L
138 × 98 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
fp L
138 × 88 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
AF points / zones
1053 vs 49 — higher is better
Max video bit rate
2600 Mbps vs 150 Mbps — higher is better
Burst (electronic)
40 fps vs 15 fps — higher is better
ISO max (native)
64,000 vs 25,600 — higher is better
RAW buffer depth
150 frames vs 60 frames — higher is better
Reasons to choose
fp L
Subject recognition
Adds Human, Animal, Bird…
Dimensions (W×H×D mm)
Adds 138, 98, 88
Resolution
61 MP vs 32.5 MP — higher 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
- ✓In-body stabilization — Both support in-body stabilization
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
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 8.5/10 versus 6.0/10 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 has 6-stop in-body image stabilization.
Which shoots faster bursts — the EOS R6 Mark III or the fp L?
EOS R6 Mark III reaches 40 fps electronic. fp L reaches 15 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 720 g, so the EOS R6 Mark III is 21 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 60p.
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 640 shots for the fp L, giving the fp L 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.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed May 2026.
Product images courtesy of Canon and Sigma press materials.