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
Minimalist full-frame box camera for creative stills and video.
$1,899
Released Jul 2019
EOS R6 Mark III is 6.3 years newer.
Wins
EOS R6 Mark III
Wins
fp
3 categories tied
Check current prices
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TL;DR — Key differences
- AEOS R6 Mark III has higher IBIS effectiveness (8.5 stops vs 0 stops)
- 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 11 fps)
- AEOS R6 Mark III has higher ISO max (native) (64,000 vs 25,600)
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
138 × 98 × 88 mm
720 g (1.59 lb / 25.40 oz)
EOS R6 Mark III and fp share virtually identical body dimensions.
EOS R6 Mark III is 21 g lighter than fp.
Depth (front-to-back): 88mm EOS R6 Mark III · 88mm fp
Back view, to scale
Width × Height — same proportions as the front of the body.
EOS R6 Mark III
138 × 98 mm
fp
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
138 × 88 mm
Sensor size, to scale
EOS R6 Mark III
35.9 × 23.9 mm · Full Frame
858 mm² area
fp
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: 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…
IBIS effectiveness
8.5 stops vs 0 stops — higher is better
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 11 fps — higher is better
ISO max (native)
64,000 vs 25,600 — higher is better
Reasons to choose
fp
Subject recognition
Adds Human, Animal, Bird…
Dimensions (W×H×D mm)
Adds 138, 98, 88
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
- ✓Battery life (CIPA) — Both 640 shots
- ✓EVF refresh rate — Both 120 Hz
- ✓Wi-Fi — Both support wi-fi
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
Pros
- ✓Ultra compact
- ✓L-mount
- ✓Unique concept
Cons
- –No IBIS
- –24MP
- –Poor ergonomics for long shoots
Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for sports, EOS R6 Mark III or fp?
EOS R6 Mark III scores 8.5/10 versus 2.5/10 for fp — 40fps burst — pro-level action capture.
What's the resolution difference between the EOS R6 Mark III and fp?
EOS R6 Mark III is 32.5 MP and fp is 24.2 MP, so the EOS R6 Mark III captures more detail for cropping and large prints.
Do the EOS R6 Mark III and fp have in-body image stabilization?
EOS R6 Mark III has 8.5-stop in-body image stabilization, while fp does not have IBIS.
Which shoots faster bursts — the EOS R6 Mark III or the fp?
EOS R6 Mark III reaches 40 fps electronic. fp reaches 11 fps electronic.
What's the weight difference between the EOS R6 Mark III and fp?
EOS R6 Mark III weighs 699 g and fp weighs 720 g, so the EOS R6 Mark III is 21 g lighter.
Do the EOS R6 Mark III and fp record 4K video?
EOS R6 Mark III: 4K up to 120p. fp: 4K up to 60p.
Are the EOS R6 Mark III and fp weather sealed?
EOS R6 Mark III: Yes. fp: No.
Which has better battery life?
Rated battery life is 640 shots (CIPA) for the EOS R6 Mark III and 640 shots for the fp, giving the fp the edge.
How much does each cost?
EOS R6 Mark III launched at $2,799 and fp at $1,899. The fp is $900 less.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed May 2026.
Product images courtesy of Canon and Sigma press materials.