High-resolution mirrorless cameras used to mean slow autofocus and sluggish burst rates. The A7R V and R5 Mark II blew that assumption apart. Sony's 61MP back-side illuminated sensor pairs with an AI-powered focus system; Canon's 45MP stacked CMOS enables 30 fps burst with full AF and face detection. DXOmark scored the A7R V sensor at 100 — the highest score ever recorded for a full-frame camera at the time of its launch.
Sony A7R V
Sony A7R V wins on resolution and sensor quality; Canon R5 Mark II wins on speed and video capability.
Specs Comparison
| Spec | Sony A7R V | Canon EOS R5 Mark II |
|---|---|---|
| Resolution | 61 MP | 45 MP |
| Sensor Type | BSI CMOS | Stacked CMOS |
| Max Burst | 10 fps (mech) / 30 fps (e-shutter) | 30 fps (full AF) |
| 8K Video | No | Yes (RAW internal) |
| 4K Video | 4K/60p (cropped) | 4K/120p (full width) |
| DXOmark Score | 100 | ~89 |
| Dynamic Range | 14.7 stops | ~14.0 stops |
| Price | ~$3,900 | ~$4,299 |
Resolution and Image Quality
Sony A7R V's 61MP sensor gives landscape and studio photographers unmatched cropping latitude and output size. DXOmark scored it at 100 — 14.7 stops of dynamic range, ISO sensitivity score of 3783, and color depth of 26.4 bits. These numbers translate to files that hold extraordinary detail in shadows and highlights.
Canon R5 Mark II's 45MP stacked sensor is no slouch. It scores highly for high-resolution sports/wildlife use where stacked CMOS enables 30 fps — the A7R V's BSI sensor tops out at 10 fps (or 30 fps in electronic shutter mode with rolling shutter caveats). If you're shooting fast action with a high-res camera, the R5 II's stacked sensor is the right tool.
For landscape, architecture, fine art, and studio work where you want the absolute most resolving power, A7R V's 61MP over R5 II's 45MP is a meaningful real-world difference in final print size.
Autofocus and Speed
Canon R5 Mark II introduced Canon's best-ever AF system: deep learning subject recognition with pre-burst action prediction. It can detect the pre-motion cues of a sprinting athlete and begin tracking before the action peaks. Wildlife photographers from Sports Shooter reported exceptional bird-in-flight hit rates.
Sony A7R V's 693-point phase-detect system with AI recognition is excellent for a high-resolution camera, but the R5 II's stacked sensor architecture enables full-speed tracking at 30 fps. A7R V burst in mechanical shutter is limited to 10 fps.
For sports and wildlife, R5 Mark II is clearly the better tool. A7R V is built for lower-speed, higher-resolution work.
Video
Canon R5 Mark II shoots 8K RAW internally — a first for Canon and a genuine differentiator for high-end video production. 4K/120p from full width is also possible, which was unheard of at R5 II's price point at launch.
Sony A7R V is not primarily a video camera. It shoots 4K/60p but with significant crop and no 8K. For photographers who want occasional video, it's sufficient. For video-first work at this price point, R5 Mark II wins by a wide margin.
Both cameras have IBIS and log profiles. Canon's Cinema RAW Light workflow is well-supported in DaVinci Resolve; Sony's XAVC S RAW requires specific NLE support.
Sony A7R V Strengths
- 61MP BSI sensor — DXOmark score of 100, highest ever for full-frame
- 14.7 stops dynamic range enables extraordinary shadow recovery
- Better low-light per-pixel performance than R5 II
- Larger E-mount ecosystem with more native lens options
Canon EOS R5 Mark II Strengths
- Stacked CMOS enables 30 fps burst with full AF at 45MP
- 8K RAW internal recording — exclusive at this tier
- 4K/120p from full sensor width
- Best-in-class AF with pre-burst action prediction
Sony A7R V Weaknesses
- 10 fps mechanical shutter limits wildlife/sports use cases
- No 8K video capability
- Higher file sizes from 61MP create storage and editing overhead
Canon EOS R5 Mark II Weaknesses
- 45MP sensor scores lower than A7R V on DXOmark dynamic range
- 8K RAW files require significant storage and processing power
- Higher price at ~$4,299
Best For
- a: Landscape, studio, and architecture photographers who need the highest resolution and dynamic range available
- b: Sports, wildlife, and video creators who need fast burst rates, 8K, and pre-burst action prediction AF
FAQ
Can A7R V shoot sports?
In e-shutter mode at 30 fps, yes — but with rolling shutter risk. For serious sports work, the stacked CMOS in R5 II is the better choice.
Does Canon R5 Mark II require a CFexpress card for 8K?
Yes — 8K RAW internal requires a CFexpress Type B card. 4K modes work with compatible SD cards.
How large can you print from a 61MP file?
At 300 PPI, the A7R V's 61MP file can print approximately 29×19 inches with full detail — large-format print territory.