What is the sensor size of the Sony A7R IIIA?
The Sony Alpha A7R IIIA is a digital camera that has a full frame sensor at its core. This imager measures 35.9mm in width and 24.0mm in height, so that the total imaging area of the sensor amounts to 862 mm2.
The A7R IIIA provides an image resolution of 42.2 megapixels, based on 7 952 horizontal pixels and 5 304 vertical pixels.
Sensor size comparison with a film slide
The sensor diagonal measures 43.2mm, which gives rise to a format factor (or crop factor) of 1.0. Therefore, the Sony A7R IIIA is a full-frame camera, as its sensor size corresponds to that of a traditional 35mm film slide or negative.
Sensor specs and performance
The table below compares the sensor specs of the Sony A7R IIIA to those of several similar cameras. The reported DXO values are indicators of the sensor's imaging quality (higher is better), covering color depth (DXO Portrait), dynamic range (DXO Landscape), and high-ISO noise (DXO Sports). Larger sensor cameras tend to outperform cameras of the same generation that are equipped with a smaller imager. On the other hand, larger sensors are more expensive and require bigger and heavier lenses than smaller light receptors.
Camera Model |
Sensor Class |
Resolution (MP) |
Horiz. Pixels |
Vert. Pixels |
Video Format |
DXO Portrait |
DXO Landscape |
DXO Sports |
DXO Overall |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Sony A7R IIIA | Full Frame | 42.2 | 7952 | 5304 | 4K/30p | 26.0 | 14.7 | 3523 | 100 | |
2. | Sony A1 | Full Frame | 49.8 | 8640 | 5760 | 8k/30p | 25.9 | 14.5 | 3163 | 98 | |
3. | Sony A7R II | Full Frame | 42.2 | 7952 | 5304 | 4K/30p | 26.0 | 13.9 | 3434 | 98 | |
4. | Sony A7R III | Full Frame | 42.2 | 7952 | 5304 | 4K/30p | 26.0 | 14.7 | 3523 | 100 | |
5. | Sony A7R IV | Full Frame | 60.2 | 9504 | 6336 | 4K/30p | 26.0 | 14.8 | 3344 | 99 | |
6. | Sony A7R IVA | Full Frame | 60.2 | 9504 | 6336 | 4K/30p | 26.0 | 14.8 | 3344 | 99 | |
7. | Sony A7R V | Full Frame | 60.2 | 9504 | 6336 | 8k/24p | 26.5 | 14.8 | 3187 | 100 | |
8. | Sony A7S II | Full Frame | 12.0 | 4240 | 2832 | 4K/30p | 23.6 | 13.3 | 2993 | 85 | |
9. | Sony A7S III | Full Frame | 12.0 | 4240 | 2832 | 4K/120p | 23.7 | 13.9 | 2520 | 86 | |
10. | Sony A9 | Full Frame | 24.0 | 6000 | 4000 | 4K/30p | 24.9 | 13.3 | 3517 | 92 | |
11. | Sony A99 II | Full Frame | 42.2 | 7952 | 5304 | 4K/30p | 25.4 | 13.4 | 2317 | 92 |
In the United States, the A7R IIIA was initially launched in April 2021 at a price of $3,199.
Camera to camera comparisons
In case you would like to check on the differences and similarities with other camera models, just make a corresponding selection in the search boxes below. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.
- Canon 600D vs Nikon Z6
- Canon R6 vs Sony A7R IIIA
- Canon SL1 vs Nikon Z6
- Fujifilm X-E4 vs Sony A7R IIIA
- Fujifilm X-T30 vs Sony A7R IIIA
- Leica Q Typ 116 vs Nikon Z6
- Nikon A1000 vs Sony A7R IIIA
- Nikon Z6 vs Panasonic GX850
- Nikon Z6 vs Sony A77
- Nikon Z6 vs Sony A7S III
- OM System OM-1 vs Sony A7R IIIA
- Sony A7R IIIA vs Sony ZV-1 II
Camera Model | Sony A7R IIIA | |
---|---|---|
Camera Type | Mirrorless system camera | |
Camera Lens | Sony E mount lenses | |
Launch Date | April 2021 | |
Launch Price | USD 3 199 | |
Sensor Specs | ||
Sensor Technology | BSI-CMOS | |
Sensor Format | Full Frame Sensor | |
Sensor Size | 35.9 x 24.0 mm | |
Sensor Area | 862 mm2 | |
Sensor Diagonal | 43.2 mm | |
Crop Factor | 1.0x | |
Sensor Resolution | 42.2 Megapixels | |
Image Resolution | 7 952 x 5 304 pixels | |
Pixel Pitch | 4.52 μm | |
Pixel Density | 4.90 MP/cm2 | |
Moiré control | no AA filter | |
Movie Capability | 4K/30p Video | |
ISO Setting | 100 - 32 000 ISO | |
ISO Boost | 50 - 102 400 ISO | |
Image Processor | BIONZ X | |
DXO Sensor Quality (score) | 100 | |
DXO Color Depth (bits) | 26.0 | |
DXO Dynamic Range (EV) | 14.7 | |
DXO Low Light (ISO) | 3523 | |
Screen Specs | ||
Viewfinder Type | Electronic viewfinder | |
Viewfinder Field of View | 100% | |
Viewfinder Magnification | 0.78x | |
Viewfinder Resolution | 3686k dots | |
Top-Level Screen | no Top Display | |
LCD Framing | Live View | |
LCD Size | 3.0 inch | |
LCD Resolution | 2340k dots | |
LCD Attachment | Tilting screen | |
V-logging Friendliness | No front-flip | |
Touch Input | Touchscreen | |
Shooting Specs | ||
Focus System | On-Sensor Phase-detect | |
Manual Focusing Aid | Focus Peaking | |
Maximum Shutter Speed | 1/8000s | |
Continuous Shooting | 10 shutter flaps/s | |
Shutter Life Expectancy | 500 000 actuations | |
Silent Shooting | Electronic Shutter | |
Time Lapse Photography | Intervalometer Built-in | |
Image Stabilization | In-body stabilization | |
Fill Flash | no On-Board Flash | |
Storage Medium | MS or SDXC cards | |
Single or Dual Card Slots | Dual card slots | |
UHS card support | Single UHS-II | |
Connectivity Specs | ||
External Flash | Hotshoe | |
Studio Flash | PC Sync socket | |
USB Connector | USB 3.2 | |
HDMI Port | micro HDMI | |
Microphone Port | External MIC port | |
Headphone Socket | Headphone port | |
Wifi Support | Wifi built-in | |
Near-Field Communication | NFC built-in | |
Bluetooth Support | Bluetooth built-in | |
Body Specs | ||
Environmental Sealing | Weathersealed body | |
Battery Type | Sony NP-FZ100 power pack | |
Battery Life (CIPA) | 650 shots per charge | |
In-Camera Charging | USB charging | |
Body Dimensions |
127 x 96 x 74 mm (5.0 x 3.8 x 2.9 in) |
|
Camera Weight | 650 g (22.9 oz) |
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