Main trade-off
Canon EOS R6 Mark II body
No 7K 3:2 source or internal 4K120. RAW pre-shooting produces a roll that needs extraction.
Head-to-head
Canon EOS R6 Mark II vs Mark III: Mark III reframes one take, Mark II keeps a two-SD setup
The short answer
Mark III reframes one take, while Mark II keeps a two-SD setup. Choose Mark III for a tall 7K 3:2 source, internal RAW or 4K120 that you will actually use. Choose Mark II when full-width 4K60 and compatible two-SD duplication cover the job. Both links are body-only. Mark III needs LP-E6P for full functions, and its RAW or high-frame-rate movies cannot make identical internal card copies. Its 3:2 mode stops at about 30fps.
Before you choose
The reasoning and the trade-offs
One performance can become two edits with less cropping pressure
Mark III’s 6912×4608 3:2 MP4 source can yield a 2592×4608 portrait crop before other adjustments. A 3840×2160 landscape source from Mark II yields about 1215×2160 at the same 9:16 shape. Both can support a 1080×1920 portrait export in principle. Mark III leaves more room to reposition a singer, child or speaker while also keeping a wide version for a television. You still need to frame for both outputs and edit the result. A subject outside the recorded picture cannot be recovered. This benefit belongs to the up-to-30p 3:2 mode, not the separate 4K120 setting.
What this is based on
4608×9/16=2592 and 2160×9/16=1215. Source geometry before stabilization or rotation, not a measured sharpness comparison. Ordinary-speed modes only.
Main trade-off
Canon EOS R6 Mark III body
Full functions require LP-E6P. Older batteries and BG-R10 restrict functions. One Type B slot and one SD slot replace the two-SD setup.
Canon EOS R6 Mark II body
- Choose it for
- Full-width 4K60 and configured photo or compatible movie copies on two SD cards meet the job.
- Your existing LP-E6NH-based setup is useful, and you do not need 7K 3:2 recording or internal RAW.
- Main trade-off
- No 7K 3:2 source or internal 4K120. RAW pre-shooting produces a roll that needs extraction.
Canon EOS R6 Mark III body
- Choose it for
- One event needs both horizontal and portrait edits, and a 7K 3:2 source at up to 29.97p justifies the editing.
- Internal RAW or 4K120 removes a real limitation, with the correct card, LP-E6P battery and backup plan budgeted.
- Main trade-off
- Full functions require LP-E6P. Older batteries and BG-R10 restrict functions. One Type B slot and one SD slot replace the two-SD setup.
About this comparison
R6 Mark II vs Mark III for family events and hybrid work. Check portrait crops from one take, older-battery limits, mixed cards and movie backup.
This is a direct upgrade decision for Canon owners who can keep compatible lenses. The new recording options change the whole setup, including batteries, grips, cards and the edit after the event.
Winner by situation
Start with what you need it to do
Make wide and portrait edits from one up-to-30p take
Mark III offers a taller high-resolution 3:2 source.
- Canon EOS R6 Mark II body
- Good
- Canon EOS R6 Mark III body
- Better fit
Reuse an existing pair of suitable SD cards
Mark III has only one SD slot.
- Canon EOS R6 Mark II body
- Better fit
- Canon EOS R6 Mark III body
- Caution
Keep LP-E6NH spares without the newer body’s restrictions
Mark III needs LP-E6P for full functions.
- Canon EOS R6 Mark II body
- Better fit
- Canon EOS R6 Mark III body
- Caution
Record internal 4K120
Mark III adds the mode, with media and backup limits.
- Canon EOS R6 Mark II body
- Not suitable
- Canon EOS R6 Mark III body
- Better fit
What matters in practice
The differences that matter
One performance can become two edits with less cropping pressure
Mark III’s 6912×4608 3:2 MP4 source can yield a 2592×4608 portrait crop before other adjustments. A 3840×2160 landscape source from Mark II yields about 1215×2160 at the same 9:16 shape. Both can support a 1080×1920 portrait export in principle. Mark III leaves more room to reposition a singer, child or speaker while also keeping a wide version for a television. You still need to frame for both outputs and edit the result. A subject outside the recorded picture cannot be recovered. This benefit belongs to the up-to-30p 3:2 mode, not the separate 4K120 setting.
How we reached this conclusion
4608×9/16=2592 and 2160×9/16=1215. Source geometry before stabilization or rotation, not a measured sharpness comparison. Ordinary-speed modes only.
The spare battery can break the sharing routine halfway through an outing
A Mark II owner may carry charged LP-E6NH batteries and expect them to behave the same in Mark III. Canon allows those batteries but restricts functions, including Wi-Fi, burst speed and usable capacity. If you photograph an event and send selected pictures to relatives before going home, changing to an old spare can remove the wireless step you rely on. An old BG-R10 grip also carries restrictions. Budget enough LP-E6P power for the intended job before calling the upgrade body-only. Mark II remains a reasonable choice when the existing battery setup works and the new recording modes would rarely be used.
How we reached this conclusion
Canon battery compatibility table explicitly distinguishes full-function LP-E6P from restricted LP-E6NH/N and BG-R10. Sharing consequence assumes a Wi-Fi workflow, not a claim about all transfer methods.
The impressive recording mode may be the one without an identical safety copy
For an important event, two slots can look like a simple insurance policy. Mark III complicates that expectation because RAW and high-frame-rate movies cannot record identical copies to both cards. A RAW main file with a 4K sub file is a different arrangement, not a second RAW original. Mark II supports duplicate compatible movies on two SD cards, while Mark III uses one Type B card and one SD. If your normal job is ordinary 4K with immediate card redundancy, the older setup may already solve it. Choose Mark III for a specific recording benefit and plan protection for that exact mode.
How we reached this conclusion
Both card-role manuals plus Mark III recording-format footnotes. RAW/sub is distinguished from identical duplication. No claim that all ordinary modes support redundancy without checking settings.
Choice A
Canon, 5666C002
Canon EOS R6 Mark II body
Full-width 4K60 and configured photo or compatible movie copies on two SD cards meet the job.
- Best matched use
- Full-width 4K60 and configured photo or compatible movie copies on two SD cards meet the job.
Checked facts
- One take for two orientations: Internal 4K 16:9 source
- Media already in the bag: Two UHS-II SD slots
- Older Canon batteries: LP-E6NH is the specified battery
- Internal high-speed movie: 4K up to 60p
Choice B
Canon, 7084C002
Canon EOS R6 Mark III body
One event needs both horizontal and portrait edits, and a 7K 3:2 source at up to 29.97p justifies the editing.
- Best matched use
- One event needs both horizontal and portrait edits, and a 7K 3:2 source at up to 29.97p justifies the editing.
Checked facts
- One take for two orientations: 7K 3:2 MP4 at 6912×4608, up to 29.97p
- Media already in the bag: One CFexpress Type B plus one SD
- Older Canon batteries: LP-E6P for full functions, NH/N restricted
- Internal high-speed movie: 4K up to 120p
Meaningful differences
What changes the fit
| What changes | Canon EOS R6 Mark II body | Canon EOS R6 Mark III body | Why it matters |
|---|---|---|---|
| One take for two orientations | Internal 4K 16:9 source | 7K 3:2 MP4 at 6912×4608, up to 29.97p | Mark III leaves more vertical source pixels for a portrait edit. |
| Media already in the bag | Two UHS-II SD slots | One CFexpress Type B plus one SD | The newer body cannot take an existing SD pair in both slots. |
| Older Canon batteries | LP-E6NH is the specified battery | LP-E6P for full functions, NH/N restricted | A battery that fits may disable the function you planned to use. |
| Internal high-speed movie | 4K up to 60p | 4K up to 120p | The faster mode adds card and backup restrictions. |
| Duplicate movie recording | Supported with compatible settings and matching card formats | Supported modes only, no identical RAW or high-frame-rate copies | More recording formats do not mean backup across every format. |
What you give up
Every choice has a cost
If you choose Canon EOS R6 Mark II body
- The familiar setup can remain sufficient. An external recording upgrade, if wanted, needs its own compatibility and cost check.
If you choose Canon EOS R6 Mark III body
- A tall source still needs editing. RAW and high-frame-rate recording do not provide identical dual-card movie backup.
Recommendation switch
The decision flips if...
Ordinary 4K and the current two-SD setup cover the job
Choose Canon EOS R6 Mark II body. Mark II avoids replacing useful supporting equipment.
The taller source or high-speed mode changes the finished work
Choose Canon EOS R6 Mark III body. Mark III adds meaningful outputs when the whole workflow is budgeted.
What matters in practice
Before you choose
You want one camera to cover more jobs without discovering that your trusted spare battery or second card no longer does what you expect.
What this comparison cannot tell you
- Pixel geometry is not a measured image-quality result.
- No unlimited runtime or universal two-card backup promise.
What the facts say
What the comparison shows
Useful conclusions from the current mirrorless cameras comparison, followed by the checked facts used to reach them.
See the checked facts and calculation notes
| Product | Needs matched | Checked facts | Source records |
|---|---|---|---|
| Canon EOS R6 Mark II body |
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| Canon EOS R6 Mark III body |
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Ready to choose?
Check the price. Read the owner reviews.
Open either model on Amazon to check the current price, customer reviews and delivery options.
Canon EOS R6 Mark II body
Full-width 4K60 and configured photo or compatible movie copies on two SD cards meet the job.
Your existing LP-E6NH-based setup is useful, and you do not need 7K 3:2 recording or internal RAW.
See price & reviews on AmazonCanon EOS R6 Mark III body
One event needs both horizontal and portrait edits, and a 7K 3:2 source at up to 29.97p justifies the editing.
Internal RAW or 4K120 removes a real limitation, with the correct card, LP-E6P battery and backup plan budgeted.
See price & reviews on AmazonLinks open in a new tab.