Camera Comparison
Sony a7R IV vs Sony FX3
Key Differences
- Sony a7R IV has a better effective resolution (61 MP vs 12.1 MP).
- Sony FX3 has a better 4k recording (Up to 120p vs Up to 30p).
- Sony FX3 has a better 1080p recording (Up to 240p vs Up to 120p).
- Sony FX3 has a better low light af (-6 EV vs -3 EV).
- Sony FX3 has a better phase detect points (759 vs 567).
| Product | ||
|---|---|---|
| Imaging | ||
| Sensor Type | BSI CMOS | BSI CMOS |
| Sensor Size | Full-Frame | Full-Frame |
| Effective Resolution | 61 MP | 12.1 MP |
| Max Image Size | 4K | 4K |
| Lens Mount | Sony E | Sony E |
| Exposure Control | ||
| ISO Range (Native) | 100 – 32000 | 80 – 102400 |
| ISO Range (Extended) | 50 – 102400 | 40 – 409600 |
| Mechanical Shutter | 1/8000 | − |
| Electronic Shutter | 1/8000 | 1/8000 |
| Flash Sync Speed | 1/250 | 1/250 |
| Still Image Capture | ||
| Continuous Shooting | 10 fps | − |
| Buffer (RAW) | 68 shots | − |
| Video Capture | ||
| Max Resolution | 4K | 4K |
| 8K Recording | − | − |
| 4K Recording | Up to 30p | Up to 120p |
| 1080p Recording | Up to 120p | Up to 240p |
| 10-bit Internal | Yes | Yes |
| Recording Limit | 29 min | No limit |
| Log Profiles | S-Log3 / HLG | S-Log3 / HLG / S-Cinetone |
| Built-in Mic | Stereo | Stereo (XLR via top handle) |
| Headphone Jack | Yes | Yes |
| Mic Input | Yes | Yes |
| HDMI Output | Micro (Type D) | Full-size (Type A) |
| Focus | ||
| Phase Detect Points | 567 | 759 |
| Contrast Detect Points | − | − |
| Low Light AF | -3 EV | -6 EV |
| Eye AF | Yes | Yes |
| Animal AF | Yes | Yes |
| Vehicle AF | No | No |
| Viewfinder | ||
| EVF Type | OLED | − |
| EVF Resolution | 5.76M dots | − |
| EVF Magnification | 0.78x | − |
| Monitor | ||
| LCD Size | 3.2" | 3" |
| LCD Resolution | 1.44M dots | 1.44M dots |
| LCD Type | Tilting | Vari-Angle |
| Touch Screen | Yes | Yes |
| Interface | ||
| Wi-Fi | Wi-Fi 5 | Wi-Fi 5 |
| Bluetooth | v4.2 | v5 |
| USB | USB-C 3.1 Gen 1 | USB-C 3.2 |
| GPS | No | No |
| General | ||
| Price (MSRP) | $3,499 | $3,899 |
| Body Material | Magnesium Alloy | Magnesium Alloy |
| Dimensions | 128.9×96.4×77.5 mm | 129.7×77.8×84.5 mm |
| Weight | 665g (1.47 lb) | 715g (1.58 lb) |
| Weather Sealed | Yes | Yes |
| In-Body Stabilization | Yes | Yes |
| Battery Life (EVF) | 530 shots | − |
| Battery Life (LCD) | 670 shots | 600 shots |
| Battery Type | NP-FZ100 | NP-FZ100 |
