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EOS R6 Mark III

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 price

Released Nov 2025

vs

Ricoh

GR Digital IV

Cult compact GR Digital with 10MP CCD sensor, fast 28mm equivalent f/1.9 lens, and sensor-shift stabilization.

$599

Launch price

Released Sep 2011

EOS R6 Mark III is 14.2 years newer.

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Wins

8categories

EOS R6 Mark III

Sports & ActionPortrait

Wins

2categories

GR Digital IV

Which would you choose?

TL;DR — Key differences

EOS R6 Mark III wins 5 categories·GR Digital IV wins 0 categories
  • AEOS R6 Mark III has higher Burst (electronic) (40 fps vs 1.54 fps)
  • AEOS R6 Mark III has higher ISO max (native) (64,000 vs 3,200)
  • AEOS R6 Mark III has higher Max video bit rate (2600 Mbps vs 150 Mbps)
  • AEOS R6 Mark III has higher Burst (mechanical) (12 fps vs 1.54 fps)
  • AEOS R6 Mark III has higher Resolution (32.5 MP vs 10 MP)

Key specs at a glance

EOS R6 Mark IIIGR Digital IV
Resolution32.5 MP10 MP
SensorFull Frame1/1.7 inch
ISO max64,0003,200
Burst40 fps1.54 fps
4K120 fps60 fps
IBIS8.5-stopYes
Weight699 g219 g
Battery640 shots390 shots

Size and weight, to scale

EOS R6 Mark III front view

EOS R6 Mark III

138 × 98 × 88 mm

699 g (1.54 lb / 24.66 oz)

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

Credit card

85.6 × 54 mm

for scale

GR Digital IV

109 × 60 × 33 mm

219 g (0.48 lb / 7.73 oz)

EOS R6 Mark III is 30mm wider, 39mm taller, and 56mm thicker than GR Digital IV.

EOS R6 Mark III is 480 g heavier than GR Digital IV.

Depth (front-to-back): 88mm EOS R6 Mark III · 33mm GR Digital IV

Back view, to scale

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

EOS R6 Mark III back view

EOS R6 Mark III

138 × 98 mm

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

Credit card

85.6 × 54 mm

GR Digital IV

109 × 60 mm

Top view, to scale

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

EOS R6 Mark III top view

EOS R6 Mark III

138 × 88 mm

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

Credit card

85.6 × 54 mm

GR Digital IV

109 × 33 mm

Sensor size, to scale

EOS R6 Mark III

35.9 × 23.9 mm · Full Frame

858 mm² area

Lens ecosystem

Native lens selection

EOS R6 Mark III

✓ more lenses

Canon RF

105+

native lenses available

45 first-party60 third-party

GR Digital IV: 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

Use caseEOS R6 Mark IIIGR Digital IV
Portrait
8.0Excellent✓ wins
2.0Limited
Sports & Action
10.0Excellent✓ wins
1.0Limited
Video & Hybrid
6.5Good✓ wins
3.5Limited
Landscape
7.5Good✓ wins
1.0Limited
Travel
7.5Good✓ wins
5.0Fair
Wildlife
6.5Good✓ wins
0.0Limited
Vlogging
5.5Fair✓ wins
5.0Fair

Why pick one over the other

Reasons to choose

EOS R6 Mark III

  • Subject recognition

    Adds People, Dogs, Cats…

  • Codecs

    Adds CRM, XF-HEVC S, XF-AVC S…

  • Dimensions (W×H×D mm)

    Adds 138.4, 98.4, 88.4

  • Card types

    Adds CFexpress Type B, SD UHS-II

  • Burst (electronic)

    40 fps vs 1.54 fps — higher is better

  • ISO max (native)

    64,000 vs 3,200 — higher is better

  • Max video bit rate

    2600 Mbps vs 150 Mbps — higher is better

  • Burst (mechanical)

    12 fps vs 1.54 fps — higher is better

Reasons to choose

GR Digital IV

  • Codecs

    Adds Motion JPEG AVI

  • Dimensions (W×H×D mm)

    Adds 108.6, 59.8, 32.5

  • Card types

    Adds SD, SDHC, Eye-Fi

  • Weight

    219 g vs 699 g — lower is better

  • ISO min (native)

    80 vs 100 — lower is better

Both cameras share

  • In-body stabilization (IBIS)Both support in-body stabilization (ibis)

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

GR Digital IV

Pros

  • Fast f/1.9 GR lens
  • CCD rendering
  • Compact classic
  • Sensor-shift stabilization

Cons

  • Small sensor
  • VGA video only
  • Very old model

Decided which one is right for you?

Compare live prices for the EOS R6 Mark III and GR Digital IV at major authorized retailers.

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Full specifications

= category winner

EOS R6 Mark III
GR Digital IV
Resolution
32.5 MP3.3× more
10 MP
Sensor type
Full Frame CMOS
1/1.7" CCD
Sensor size
35.9 × 23.9 mm
1/1.7 inch
AA filter
Yes
EOS R6 Mark III
GR Digital IV
Aperture
F1.9-F9
Focal length (35mm equiv.)
28 mm
EOS R6 Mark III
GR Digital IV
Processor
DIGIC X
GR ENGINE IV
EOS R6 Mark III
GR Digital IV
ISO min (native)
100
80−20 less
ISO max (native)
64,000+4.3 stops
3,200
ISO max (expanded)
102,400
3,200
EOS R6 Mark III
GR Digital IV
Shutter type
Mechanical / Electronic 1st Curtain + Electronic
Mechanical + electronic shutter
Max mechanical speed
1/8000 sec
1/2000 sec
Max electronic speed
1/16000 sec
1/16000 sec

Frequently asked

Quick answers generated from verified specs.

Which is better for sports, EOS R6 Mark III or GR Digital IV?

EOS R6 Mark III scores 10.0/10 versus 1.0/10 for GR Digital IV — 40fps burst — pro-level action capture.

What's the resolution difference between the EOS R6 Mark III and GR Digital IV?

EOS R6 Mark III is 32.5 MP and GR Digital IV is 10 MP, so the EOS R6 Mark III captures more detail for cropping and large prints.

Do the EOS R6 Mark III and GR Digital IV have in-body image stabilization?

EOS R6 Mark III has 8.5-stop in-body image stabilization, while GR Digital IV has in-body image stabilization.

Which shoots faster bursts — the EOS R6 Mark III or the GR Digital IV?

EOS R6 Mark III reaches 40 fps electronic. GR Digital IV reaches 1.54 fps electronic.

What's the weight difference between the EOS R6 Mark III and GR Digital IV?

EOS R6 Mark III weighs 699 g and GR Digital IV weighs 219 g, so the GR Digital IV is 480 g lighter.

Do the EOS R6 Mark III and GR Digital IV record 4K video?

EOS R6 Mark III: 4K up to 120p. GR Digital IV: 4K up to 60p.

Are the EOS R6 Mark III and GR Digital IV weather sealed?

EOS R6 Mark III: Yes. GR Digital IV: No.

Which has better battery life?

Rated battery life is 640 shots (CIPA) for the EOS R6 Mark III and 390 shots for the GR Digital IV, giving the EOS R6 Mark III the edge.

How much does each cost?

EOS R6 Mark III launched at $2,799 and GR Digital IV at $599. The GR Digital IV is $2,200 less.

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

Add any camera to get a three-way EOS R6 Mark III vs GR Digital IV vs X comparison.

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

Product images courtesy of Canon and Ricoh press materials.