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EOS R1

Canon

EOS R1

Flagship 24.2MP full-frame BSI stacked RF body with 40fps burst, Dual Pixel Intelligent AF, 6K RAW, and 9.44M-dot EVF.

$6,299

Launch price

Released Jul 2024

vs
D850

Nikon

D850

Legendary 45MP DSLR still favored by landscape and studio photographers.

$3,299

Launch price

Released Aug 2017

EOS R1 is 6.9 years newer.

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Wins

9categories

EOS R1

Sports & ActionVideo & Hybrid

Wins

3categories

D850

Landscape

1 categories tied

Which would you choose?

TL;DR — Key differences

EOS R1 wins 5 categories·D850 wins 0 categories
  • AEOS R1 has higher IBIS effectiveness (8.5 stops vs 0 stops)
  • AEOS R1 has higher AF points / zones (1053 vs 153)
  • AEOS R1 has higher Burst (electronic) (40 fps vs 7 fps)
  • AEOS R1 has higher 4K max frame rate (120 fps vs 29.97 fps)
  • AEOS R1 has higher ISO max (native) (102,400 vs 25,600)

Key specs at a glance

EOS R1D850
Resolution24.2 MP45.7 MP
SensorFull FrameFull Frame
ISO max102,40025,600
Burst40 fps7 fps
4K120 fps29.97 fps
IBIS8.5-stopNo
Weight920 g1005 g
Battery1330 shots1840 shots

Size and weight, to scale

EOS R1 front view

EOS R1

158 × 150 × 87 mm

920 g (2.03 lb / 32.45 oz)

Credit card shown to scale as a size reference (ISO 7810, 85.6 × 54 mm)

Credit card

85.6 × 54 mm

for scale

D850 front view

D850

146 × 124 × 79 mm

1005 g (2.22 lb / 35.45 oz)

EOS R1 is 12mm wider, 26mm taller, and 9mm thicker than D850.

EOS R1 is 85 g lighter than D850.

Depth (front-to-back): 87mm EOS R1 · 79mm D850

Back view, to scale

Width × Height — same proportions as the front of the body.

EOS R1 back view

EOS R1

158 × 150 mm

Credit card shown to scale as a size reference (ISO 7810, 85.6 × 54 mm)

Credit card

85.6 × 54 mm

D850 back view

D850

146 × 124 mm

Top view, to scale

Width × Depth (front-to-back) — see which body is chunkier on the table.

EOS R1 top view

EOS R1

158 × 87 mm

Credit card shown to scale as a size reference (ISO 7810, 85.6 × 54 mm)

Credit card

85.6 × 54 mm

D850 top view

D850

146 × 79 mm

Sensor size, to scale

EOS R1

36 × 24 mm · Full Frame

864 mm² area

D850

35.9 × 23.9 mm · Full Frame

858 mm² area

Lens ecosystem

Native lens selection

EOS R1

Canon RF

105+

native lenses available

45 first-party60 third-party

D850

✓ more lenses

Nikon F

270+

native lenses available

90 first-party180 third-party

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

Use caseEOS R1D850
Portrait
7.5Good✓ wins
5.5Fair
Sports & Action
10.0Excellent✓ wins
1.5Limited
Video & Hybrid
9.0Excellent✓ wins
1.0Limited
Landscape
7.0Good
8.5Excellent✓ wins
Travel
6.5Good✓ wins
4.5Fair
Wildlife
6.5Good✓ wins
1.5Limited
Vlogging
5.5Fair✓ wins
1.0Limited

Why pick one over the other

Reasons to choose

EOS R1

  • AF low-light limit

    -7.5 EV vs -4 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 157.6, 149.5, 87.3

  • Card types

    Adds CFexpress Type B, CFexpress Type B

  • AF points / zones

    1053 vs 153 — higher is better

  • Burst (electronic)

    40 fps vs 7 fps — higher is better

  • Codecs

    Adds RAW, XF-HEVC S, XF-AVC S…

Reasons to choose

D850

  • Dimensions (W×H×D mm)

    Adds 146, 124, 78.5

  • Card types

    Adds SD/SDHC/SDXC, CFexpress Type B / XQD

  • Codecs

    Adds MOV, MP4

  • Resolution

    45.7 MP vs 24.2 MP — higher is better

  • ISO min (native)

    64 vs 100 — lower is better

  • Battery life (CIPA)

    1840 shots vs 1330 shots — higher is better

Both cameras share

  • Weather sealingBoth support weather sealing
  • Card slotsBoth 2
  • TouchscreenBoth support touchscreen
  • Wi-FiBoth support wi-fi
  • BluetoothBoth support bluetooth
  • Microphone jack (3.5mm)Both support microphone jack (3.5mm)

Pros & cons at a glance

Editorially curated highlights and trade-offs.

EOS R1

Pros

  • 40fps electronic burst
  • 24.2MP BSI stacked full-frame sensor
  • Dual Pixel Intelligent AF
  • 6K RAW and 4K 120p video
  • Dual CFexpress Type B slots

Cons

  • 24MP resolution
  • Very expensive
  • Large integrated-grip body

D850

Pros

  • 45MP DSLR classic
  • Excellent dynamic range
  • Huge F-mount lens library

Cons

  • DSLR mirror system
  • Heavy
  • No modern mirrorless AF

Decided which one is right for you?

Compare live prices for the EOS R1 and D850 at major authorized retailers.

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Full specifications

= category winner

EOS R1
D850
Resolution
24.2 MP
45.7 MP+89%
Sensor type
Full Frame BSI Stacked CMOS
BSI CMOS
Sensor size
36.0 × 24.0 mm
35.9 x 23.9 mm
AA filter
Yes
No
EOS R1
D850
Processor
DIGIC Accelerator + DIGIC X
EXPEED 5
EOS R1
D850
ISO min (native)
100
64−36 less
ISO max (native)
102,400+2 stops
25,600
ISO max (expanded)
409,600
102,400
EOS R1
D850
Shutter type
Mechanical + Electronic
Mechanical Focal Plane Shutter and Electronic Rolling Shutter
Max mechanical speed
1/8000 sec
1/8000
Max electronic speed
1/64000 sec
N/A

Frequently asked

Quick answers generated from verified specs.

Which is better for sports, EOS R1 or D850?

EOS R1 scores 10.0/10 versus 1.5/10 for D850 — 40fps burst — pro-level action capture.

What's the resolution difference between the EOS R1 and D850?

EOS R1 is 24.2 MP and D850 is 45.7 MP, so the D850 captures more detail for cropping and large prints.

Do the EOS R1 and D850 have in-body image stabilization?

EOS R1 has 8.5-stop in-body image stabilization, while D850 does not have IBIS.

Which shoots faster bursts — the EOS R1 or the D850?

EOS R1 reaches 40 fps electronic. D850 reaches 7 fps electronic.

What's the weight difference between the EOS R1 and D850?

EOS R1 weighs 920 g and D850 weighs 1005 g, so the EOS R1 is 85 g lighter.

Do the EOS R1 and D850 record 4K video?

EOS R1: 6K RAW (max), 4K up to 120p. D850: 4K up to 29.97p.

Are the EOS R1 and D850 weather sealed?

EOS R1: Yes. D850: Yes.

Which has better battery life?

Rated battery life is 1,330 shots (CIPA) for the EOS R1 and 1,840 shots for the D850, giving the D850 the edge.

How much does each cost?

EOS R1 launched at $6,299 and D850 at $3,299. The D850 is $3,000 less.

Can't decide between two? Compare a third camera.

Add any camera to get a three-way EOS R1 vs D850 vs X comparison.

Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed July 2026.

Product images courtesy of Canon and Nikon press materials.