Sony a1 vs Sony a7R IV
Compare key differences and full specifications to find the camera that suits your photography.
Key differences
- Year: Sony a1: 2021 ; Sony a7R IV: 2019
- Weight: Sony a1: 737 g ; Sony a7R IV: 665 g
- Sensor size: Sony a1: 35.9 x 24 mm ; Sony a7R IV: 35.7 x 23.8 mm
- Sensor resolution: Sony a1: 8669 x 5779 ; Sony a7R IV: 9566 x 6377
- Effective megapixels: Sony a1: 50.1 ; Sony a7R IV: 61.0
- AF phase-detection points: Sony a1: 759 ; Sony a7R IV: 567
- Max. video mode: Sony a1: 8K 30p (7680 x 4320) ; Sony a7R IV: 4K 30p (3840 x 2160)
- CIPA rated shots (EVF): Sony a1: 430 shots ; Sony a7R IV: 530 shots
- CIPA rated shots (LCD): Sony a1: 530 shots ; Sony a7R IV: 670 shots
Best for
Larger prints and more cropping detail: Sony a7R IV (61.0).
Longer battery life using the viewfinder (CIPA): Sony a7R IV (530 shots).
Longer battery life using the screen (CIPA): Sony a7R IV (670 shots).
| Specification | Sony a1 | Sony a7R IV |
|---|---|---|
| General | ||
| Brand | Sony | Sony |
| Model | a1 | a7R IV |
| Year | 2021 | 2019 |
| Body | ||
| Dimensions | 128.9 x 96.9 x 80.8 mm | 128.9 x 96.4 x 77.5 mm |
| Weight | 737 g | 665 g |
| Sensor | ||
| Sensor type | CMOS | CMOS |
| Sensor size | 35.9 x 24 mm | 35.7 x 23.8 mm |
| Sensor resolution | 8669 x 5779 | 9566 x 6377 |
| Crop factor | 1.0 | 1.01 |
| Total megapixels | 50.5 | 62.5 |
| Effective megapixels | 50.1 | 61.0 |
| Image | ||
| Max. image resolution | 8640 x 5760 | 9504 x 6336 |
| ISO | Auto, 100-32000 (extends to 50-102400) | Auto, 100-32000 (expandable to 50-102400) |
| Exposure & Shutter | ||
| Min. shutter speed | 30 sec | 30 sec |
| Max. shutter speed | 1/32000 sec | 1/8000 sec |
| Metering | Multi, Center-weighted, Highlight-weighted, Average, Spot | Multi, Center-weighted, Highlight-weighted, Average, Spot |
| Exposure compensation | ±5 EV (in 1/3 EV, 1/2 EV steps) | ±5 EV (in 1/3 EV, 1/2 EV steps) |
| Aperture priority | Yes | Yes |
| Shutter priority | Yes | Yes |
| White balance presets | 7.0 | 9.0 |
| Autofocus & Drive | ||
| Autofocus type | Fast Hybrid AF (phase + contrast detection) | Fast Hybrid AF (phase + contrast detection) |
| AF phase-detection points | 759 | 567 |
| Max burst (electronic shutter) | 30 fps | — |
| Max burst (mechanical shutter) | 10 fps | 10 fps |
| Stabilization | ||
| In-body stabilization (IBIS) | Yes, 5-axis sensor shift | Yes, 5-axis sensor shift |
| Rated stops | 5.5 stops | 5.5 stops |
| Video | ||
| Max. video mode | 8K 30p (7680 x 4320) | 4K 30p (3840 x 2160) |
| Display & Viewfinder | ||
| Screen size | 3" | 3" |
| Screen resolution | 1,440,000 dots | 1,440,000 dots |
| Viewfinder | Electronic | Electronic |
| Storage & Connectivity | ||
| Storage types | SD/SDHC/SDXC, CFexpress | SD/SDHC/SDXC |
| USB | USB 3.0 (5 GBit/sec) | USB 3.0 (5 GBit/sec) |
| Power | ||
| Battery | NP-FZ100 lithium-ion battery | NP-FZ100 lithium-ion battery |
| CIPA rated shots (EVF) | 430 shots | 530 shots |
| CIPA rated shots (LCD) | 530 shots | 670 shots |
| Lens & Focus | ||
| Digital zoom | Yes | Yes |