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Sony a7 IV vs Canon R6 Mark II

The two default full-frame hybrids, head to head. Sony's 33-megapixel resolution or Canon's uncropped 4K60 and speed? Which system to buy into.

By Stephen V.Last updated How we pick

These are the two cameras most people cross-shop when they step up to full-frame for serious photo-and-video work. Both are superb hybrids with in-body stabilization, dual card slots, excellent autofocus and a fully articulating screen. Choosing between them is less about which is “better” and more about which trade-off suits you — and which lens system you want to live in for years.

The headline difference is the sensor. Sony’s a7 IV packs 33 megapixels, giving you more detail and real cropping room for stills. Canon’s R6 Mark II runs a 24-megapixel sensor tuned for speed and video, and it shoots uncropped 4K60 where the Sony crops into Super 35 for 60p. Here is how they compare.

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Sony a7 IVCanon EOS R6 Mark II
SensorFull-frame, 33 MPFull-frame, 24.2 MP
4K60 video4K60 in Super 35 (crop)4K60 uncropped
4K30 video4K30 full-width4K30 oversampled
Stabilization5-axis in-body5-axis in-body
Card slotsDual (CFexpress A / SD)Dual (SD UHS-II)
MountSony ECanon RF
Weight658 g670 g

Both cameras in full

#1Best for resolution

Sony a7 IV

The default full-frame hybrid for good reason: 33 megapixels is plenty for stills and cropping, autofocus is excellent, and it shoots 4K60 in Super 35. It is more camera than most creators need — but if you are building a paid photo-and-video kit, it is the safe center of it.

Strengths

  • 33 MP full-frame sensor gives real cropping room
  • In-body stabilization and dual card slots
  • Excellent autofocus with reliable eye tracking

Trade-offs

  • 4K60 comes with a Super 35 crop
  • Big step up in price and size from APS-C
SensorFull-frame CMOS, 33 MP
MountSony E
Video4K30 full-width, 4K60 in Super 35
Stabilization5-axis in-body (IBIS)
Weight658 g with battery

Specifications read from the manufacturer listing, on July 18, 2026.

#2Best for video

Canon EOS R6 Mark II

Canon's do-everything full-frame hybrid and the natural rival to the Sony a7 IV. Uncropped 4K60, superb autofocus and in-body stabilization, tuned more for speed and video than for megapixels. If you are on Canon glass and want one body for paid work, this is it.

Strengths

  • Uncropped 4K60 with excellent rolling-shutter control
  • Class-leading autofocus and subject detection
  • In-body stabilization and dual card slots

Trade-offs

  • 24 MP is modest for heavy cropping or large prints
  • Can overheat in the longest 4K60 clips
SensorFull-frame CMOS, 24.2 MP
MountCanon RF
Video4K60 uncropped, 6K RAW over HDMI
Stabilization5-axis in-body (IBIS)
Weight670 g with battery

Specifications read from the manufacturer listing, on July 18, 2026.

Which should you buy?

Buy the Sony a7 IV ifstills matter as much as video and you want resolution and cropping room: 33 megapixels gives you more detail for prints and more freedom to reframe. Sony’s E-mount also has the widest, most mature full-frame lens lineup of any system, including huge third-party support from Sigma and Tamron — which often means cheaper glass. If you value the ecosystem and the extra megapixels, it’s the pick.

Buy the Canon R6 Mark II ifvideo leans first: its uncropped 4K60 keeps your lenses wide and your low-light performance intact where the Sony crops in, its autofocus and subject detection are class-leading, and 24 megapixels is plenty for most stills while keeping file sizes manageable. If you already own Canon glass or shoot a lot of fast-moving video, it’s the more natural home.

Honestly, you can’t go wrong — both are among the best hybrids you can buy, and the deciding factor is usually the lens system and the price on the day. Whichever you choose, budget for good glass; see our portrait lens guide for the upgrade that improves your images most, and our hybrid camera guide for the APS-C alternatives if full-frame is more than you need.

Frequently asked questions

Which is better for video, the a7 IV or the R6 Mark II?

The Canon R6 Mark II has the edge for video because its 4K60 is uncropped — it uses the full sensor width, keeping your lenses wide and low-light performance intact. The a7 IV crops into Super 35 for 4K60. Both shoot excellent 4K30, but if high-frame-rate 4K matters, Canon leads here.

Which has more megapixels?

The Sony a7 IV, at 33 megapixels versus the R6 Mark II's 24.2. That gives the Sony more detail and more room to crop for stills. For video and general shooting the difference is minor; for large prints or heavy cropping, the extra resolution helps.

Do they use the same lenses?

No — the a7 IV uses the Sony E-mount and the R6 Mark II uses the Canon RF mount, and they are not cross-compatible without adapters. Choosing a body is choosing a lens system, so factor in the glass you'll want (and its price) before you decide. Sony's E-mount currently has broader third-party lens support.

Is 24 megapixels enough on the R6 Mark II?

For the vast majority of work, yes. 24 megapixels makes large prints, crops comfortably and keeps file sizes and buffer demands lower — which suits fast shooting and video. Only heavy croppers or those printing very large will feel limited, and that's where the a7 IV's 33 megapixels pulls ahead.

Sources

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