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
Pentax
KF
Updated K-70 with modern connectivity and the same rugged Pentax philosophy.
$849
Released Nov 2022
EOS R6 Mark III is 3 years newer.
Wins
EOS R6 Mark III
Wins
KF
5 categories tied
TL;DR — Key differences
- AEOS R6 Mark III has higher Max video bit rate (2600 Mbps vs 150 Mbps)
- AEOS R6 Mark III has higher AF points / zones (1053 vs 101)
- 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)
KF
138 × 98 × 88 mm
520 g (1.15 lb / 18.34 oz)
EOS R6 Mark III and KF share virtually identical body dimensions.
EOS R6 Mark III is 179 g heavier than KF.
Depth (front-to-back): 88mm EOS R6 Mark III · 88mm KF
Back view, to scale
Width × Height — same proportions as the front of the body.
EOS R6 Mark III
138 × 98 mm
KF
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
KF
138 × 88 mm
Sensor size, to scale
EOS R6 Mark III
35.9 × 23.9 mm · Full Frame
858 mm² area
KF
23.5 × 15.6 mm · APS-C
367 mm² area
2.3× larger sensor area = shallower depth of field and better low-light performance.
Lens ecosystem
Native lens selection
EOS R6 Mark III
✓ more lensesCanon RF
105+
native lenses available
KF
Pentax K
70+
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 R6 Mark III
AF low-light limit
-6.5 EV vs -3 EV — lower is better
Subject recognition
Adds People, Dogs, Cats…
Dimensions (W×H×D mm)
Adds 138.4, 98.4, 88.4
Max video bit rate
2600 Mbps vs 150 Mbps — higher is better
AF points / zones
1053 vs 101 — 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
KF
Subject recognition
Adds Human, Animal, Bird…
Dimensions (W×H×D mm)
Adds 138, 98, 88
Weight
520 g vs 699 g — lower is better
EVF magnification
0.78 × vs 0.76 × — higher is better
Both cameras share
- ✓ISO min (native) — Both 100
- ✓AF frame coverage — 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
KF
Pros
- ✓Weather sealed
- ✓IBIS
- ✓Affordable DSLR
Cons
- –DSLR platform
- –No 4K
- –Niche ecosystem
Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for sports, EOS R6 Mark III or KF?
EOS R6 Mark III scores 8.5/10 versus 6.0/10 for KF — 40fps burst — pro-level action capture.
What's the resolution difference between the EOS R6 Mark III and KF?
EOS R6 Mark III is 32.5 MP and KF 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 KF have in-body image stabilization?
EOS R6 Mark III has 8.5-stop in-body image stabilization, while kF has 6-stop in-body image stabilization.
Which shoots faster bursts — the EOS R6 Mark III or the KF?
EOS R6 Mark III reaches 40 fps electronic. KF reaches 15 fps electronic.
What's the weight difference between the EOS R6 Mark III and KF?
EOS R6 Mark III weighs 699 g and KF weighs 520 g, so the KF is 179 g lighter.
Do the EOS R6 Mark III and KF record 4K video?
EOS R6 Mark III: 4K up to 120p. KF: 4K up to 60p.
Are the EOS R6 Mark III and KF weather sealed?
EOS R6 Mark III: Yes. KF: Yes.
Which has better battery life?
Rated battery life is 640 shots (CIPA) for the EOS R6 Mark III and 640 shots for the KF, giving the KF the edge.
How much does each cost?
EOS R6 Mark III launched at $2,799 and KF at $849. The KF is $1,950 less.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed May 2026.
Product images courtesy of Canon and Pentax press materials.