What is the crop factor of the Sony A7R IV?
The Sony Alpha A7R IV is equipped with a full frame sensor, whose diagonal measures 42.9mm. The sensor has a crop factor (or format factor, or focal length multiplier) of 1.0.
The crop factor is defined as the ratio of the 35mm full-frame film diagonal to the diagonal of a digital sensor. This number indicates how a lens behaves in relation to the size of the image sensor.
Sensor size comparison with a film slide
With a crop factor of 1.0, the sensor in the Sony A7R IV has a similar size as a 35mm film slide or negative. As a result, a lens that is attached to the Sony A7R IV will offer the same angle of view and provide the same depth of field as a lens of the same focal length and aperture on a film camera.
Sensor specs and performance
The table below compares the sensor specs of the Sony A7R IV 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 IV | Full Frame | 60.2 | 9504 | 6336 | 4K/30p | 26.0 | 14.8 | 3344 | 99 | |
2. | Sony A7R V | Full Frame | 60.2 | 9504 | 6336 | 8k/24p | 26.5 | 14.8 | 3187 | 100 | |
3. | Sony A1 | Full Frame | 49.8 | 8640 | 5760 | 8k/30p | 25.9 | 14.5 | 3163 | 98 | |
4. | Sony A7R IIIA | Full Frame | 42.2 | 7952 | 5304 | 4K/30p | 26.0 | 14.7 | 3523 | 100 | |
5. | Sony A7R IVA | Full Frame | 60.2 | 9504 | 6336 | 4K/30p | 26.0 | 14.8 | 3344 | 99 | |
6. | Sony A7S III | Full Frame | 12.0 | 4240 | 2832 | 4K/120p | 23.7 | 13.9 | 2520 | 86 | |
7. | Sony A9 II | Full Frame | 24.0 | 6000 | 4000 | 4K/30p | 25.0 | 14.0 | 3434 | 93 | |
8. | Sony A7 III | Full Frame | 24.0 | 6000 | 4000 | 4K/30p | 25.0 | 14.7 | 3730 | 96 | |
9. | Sony A7R III | Full Frame | 42.2 | 7952 | 5304 | 4K/30p | 26.0 | 14.7 | 3523 | 100 | |
10. | Sony A7R II | Full Frame | 42.2 | 7952 | 5304 | 4K/30p | 26.0 | 13.9 | 3434 | 98 | |
11. | Sony A7S II | Full Frame | 12.0 | 4240 | 2832 | 4K/30p | 23.6 | 13.3 | 2993 | 85 |
In the United States, the A7R IV was initially launched in July 2019 at a price of $3,499.
Camera to camera comparisons
If you would like to see a side-by-side review with another camera, just make your choice using the following search menu. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.
- Canon 400D vs Sony A7R IV
- Canon 5D Mark III vs Sony A7R IV
- Fujifilm X-A1 vs Sony A7R IV
- Nikon D1 vs Nikon Z6
- Nikon D3500 vs Nikon Z6
- Nikon D70s vs Nikon Z6
- Nikon D800E vs Nikon Z6
- Nikon Z6 vs Olympus E-620
- Nikon Z6 vs Olympus E-M1X
- Olympus E-500 vs Sony A7R IV
- Sony A7R IV vs Sony A7S II
- Sony A7R IV vs Sony ZV-1
Camera Model | Sony A7R IV | |
---|---|---|
Camera Type | Mirrorless system camera | |
Camera Lens | Sony E mount lenses | |
Launch Date | July 2019 | |
Launch Price | USD 3 499 | |
Sensor Specs | ||
Sensor Technology | BSI-CMOS | |
Sensor Format | Full Frame Sensor | |
Sensor Size | 35.7 x 23.8 mm | |
Sensor Area | 850 mm2 | |
Sensor Diagonal | 42.9 mm | |
Crop Factor | 1.0x | |
Sensor Resolution | 60.2 Megapixels | |
Image Resolution | 9 504 x 6 336 pixels | |
Pixel Pitch | 3.76 μm | |
Pixel Density | 7.09 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) | 99 | |
DXO Color Depth (bits) | 26.0 | |
DXO Dynamic Range (EV) | 14.8 | |
DXO Low Light (ISO) | 3344 | |
Screen Specs | ||
Viewfinder Type | Electronic viewfinder | |
Viewfinder Field of View | 100% | |
Viewfinder Magnification | 0.78x | |
Viewfinder Resolution | 5760k dots | |
Top-Level Screen | no Top Display | |
LCD Framing | Live View | |
LCD Size | 3.0 inch | |
LCD Resolution | 1440k 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 | SDXC cards | |
Single or Dual Card Slots | Dual card slots | |
UHS card support | Dual UHS-II | |
Connectivity Specs | ||
External Flash | Hotshoe | |
Studio Flash | PC Sync socket | |
USB Connector | USB 3.1 | |
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) | 670 shots per charge | |
In-Camera Charging | USB charging | |
Body Dimensions |
129 x 96 x 78 mm (5.1 x 3.8 x 3.1 in) |
|
Camera Weight | 665 g (23.5 oz) |
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