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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
Luna Ultra

Insta360

Luna Ultra

Flagship dual-lens 3-axis gimbal camera with Leica Summicron 1-inch 8K main lens, 1/1.3-inch telephoto, detachable 2-inch OLED screen, 8K30 / 4K120 video, and 37MP UltraPhoto.

$770

Launch price

Released Jun 2026

Luna Ultra is 7 months newer.

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Wins

4categories

EOS R6 Mark III

Sports & ActionPortrait

Wins

3categories

Luna Ultra

Sports & ActionVideo & Hybrid

2 categories tied

Which would you choose?

TL;DR — Key differences

EOS R6 Mark III wins 3 categories·Luna Ultra wins 2 categories
  • AEOS R6 Mark III has higher Max video bit rate (2600 Mbps vs 120 Mbps)
  • AEOS R6 Mark III has higher ISO max (native) (64,000 vs 6,400)
  • BLuna Ultra has lower Weight (233 g vs 699 g)
  • AEOS R6 Mark III has higher Card slots (2 vs 1)
  • BLuna Ultra has higher 1080p max frame rate (240 fps vs 180 fps)

Key specs at a glance

EOS R6 Mark IIILuna Ultra
Resolution32.5 MP37 MP
SensorFull Frame13.2 × 8.8 mm
ISO max64,0006,400
Burst40 fps
4K120 fps120 fps
IBIS8.5-stopNo
Weight699 g233 g
Battery640 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

Luna Ultra front view

Luna Ultra

52 × 170 × 39 mm

233 g (0.51 lb / 8.22 oz)

EOS R6 Mark III is 72mm shorter than Luna Ultra but it is also 86mm wider and 50mm thicker.

EOS R6 Mark III is 466 g heavier than Luna Ultra.

Depth (front-to-back): 88mm EOS R6 Mark III · 39mm Luna Ultra

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

Luna Ultra back view

Luna Ultra

52 × 170 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

Luna Ultra top view

Luna Ultra

52 × 39 mm

Sensor size, to scale

EOS R6 Mark III

35.9 × 23.9 mm · Full Frame

858 mm² area

Luna Ultra

13.2 × 8.8 mm · 1-inch

116 mm² area

7.4× larger sensor area = shallower depth of field and better low-light performance.

Lens ecosystem

Native lens selection

EOS R6 Mark III

✓ more lenses

Canon RF

105+

native lenses available

45 first-party60 third-party

Luna Ultra: 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 IIILuna Ultra
Portrait
8.0Excellent✓ wins
2.5Limited
Sports & Action
10.0Excellent✓ wins
7.5Good
Video & Hybrid
6.5Good✓ wins
6.0Good
Landscape
7.5Good✓ wins
2.0Limited
Travel
7.5Good✓ wins
4.5Fair
Wildlife
6.5Good✓ wins
0.0Limited
Vlogging
5.5Fair✓ wins
4.0Fair

Why pick one over the other

Reasons to choose

EOS R6 Mark III

  • Subject recognition

    Adds People, Dogs, Cats…

  • Dimensions (W×H×D mm)

    Adds 138.4, 98.4, 88.4

  • Card types

    Adds CFexpress Type B, SD UHS-II

  • Max video bit rate

    2600 Mbps vs 120 Mbps — higher is better

  • ISO max (native)

    64,000 vs 6,400 — higher is better

  • Codecs

    Adds CRM, XF-HEVC S, XF-AVC S…

  • AA filter

    Only EOS R6 Mark III supports it

  • Eye AF

    Only EOS R6 Mark III supports it

Reasons to choose

Luna Ultra

  • Dimensions (W×H×D mm)

    Adds 52.4, 169.9, 38.5

  • Card types

    Adds microSD

  • Weight

    233 g vs 699 g — lower is better

  • 1080p max frame rate

    240 fps vs 180 fps — higher is better

  • Resolution

    37 MP vs 32.5 MP — higher is better

Both cameras share

  • ISO min (native)Both 100
  • 4K max frame rateBoth 120 fps
  • TouchscreenBoth support touchscreen
  • Wi-FiBoth support wi-fi
  • BluetoothBoth support bluetooth

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

Luna Ultra

Pros

  • Dual Leica lenses (1" + tele)
  • 8K30 with 4K120 & 1080p240
  • Detachable 2" OLED screen
  • 3-axis gimbal + Deep Track 5.0

Cons

  • Premium vs Pocket 3
  • No waterproofing
  • Tele reach capped at 240mm equiv

Decided which one is right for you?

Compare live prices for the EOS R6 Mark III and Luna Ultra at major authorized retailers.

Affiliate disclosure: As an Amazon Associate, Cameraegg earns from qualifying purchases. Cameraegg may also earn commission from B&H links, at no extra cost to you.

Full specifications

= category winner

EOS R6 Mark III
Luna Ultra
Resolution
32.5 MP
37 MP+14%
Sensor type
Full Frame CMOS
1" CMOS main + 1/1.3" tele (Leica Summicron)
Sensor size
35.9 × 23.9 mm
13.2 × 8.8 mm
AA filter
Yes
No
EOS R6 Mark III
Luna Ultra
Aperture
f/1.8 main / f/2.0 tele
Focal length (35mm equiv.)
20mm main / 60mm tele
EOS R6 Mark III
Luna Ultra
Processor
DIGIC X
Triple AI Chip (dual imaging + 4nm AI)
EOS R6 Mark III
Luna Ultra
ISO min (native)
100
100
ISO max (native)
64,000+3.3 stops
6,400
ISO max (expanded)
102,400
6,400
EOS R6 Mark III
Luna Ultra
Shutter type
Mechanical / Electronic 1st Curtain + Electronic
Electronic shutter
Max mechanical speed
1/8000 sec
1/8000 sec
Max electronic speed
1/16000 sec
1/8000 sec

Frequently asked

Quick answers generated from verified specs.

Which is better for wildlife, EOS R6 Mark III or Luna Ultra?

EOS R6 Mark III scores 6.5/10 versus 0.0/10 for Luna Ultra — 40fps burst captures fleeting moments.

What's the resolution difference between the EOS R6 Mark III and Luna Ultra?

EOS R6 Mark III is 32.5 MP and Luna Ultra is 37 MP, so the Luna Ultra captures more detail for cropping and large prints.

Do the EOS R6 Mark III and Luna Ultra have in-body image stabilization?

EOS R6 Mark III has 8.5-stop in-body image stabilization, while Luna Ultra uses a 3-axis mechanical gimbal.

What's the weight difference between the EOS R6 Mark III and Luna Ultra?

EOS R6 Mark III weighs 699 g and Luna Ultra weighs 233 g, so the Luna Ultra is 466 g lighter.

Do the EOS R6 Mark III and Luna Ultra record 4K video?

EOS R6 Mark III: 4K up to 120p. Luna Ultra: 8K (7680×4320) (max), 4K up to 120p.

Are the EOS R6 Mark III and Luna Ultra weather sealed?

EOS R6 Mark III: Yes. Luna Ultra: No.

How much does each cost?

EOS R6 Mark III launched at $2,799 and Luna Ultra at $770. The Luna Ultra is $2,029 less.

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

Add any camera to get a three-way EOS R6 Mark III vs Luna Ultra vs X comparison.

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

Product images courtesy of Canon and Insta360 press materials.