What is the sensor size of the Sony A77?
The Sony Alpha SLT-A77 is a digital camera that has an APS-C sensor at its core. This imager measures 23.5mm in width and 15.6mm in height, so that the total imaging area of the sensor amounts to 367 mm2.
The A77 provides an image resolution of 24 megapixels, based on 6 000 horizontal pixels and 4 000 vertical pixels.
Sensor size comparison with a film slide
The sensor diagonal measures 28.2mm, which gives rise to a format factor (or crop factor) of 1.5. Hence, the Sony A77 is a crop-sensor camera, as its sensor is smaller than a traditional 35mm film slide or negative.
Sensor specs and performance
The table below compares the sensor specs of the Sony A77 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 A77 | APS-C | 24.0 | 6000 | 4000 | 1080/60p | 24.0 | 13.2 | 801 | 78 | |
2. | Canon 6D | Full Frame | 20.0 | 5472 | 3648 | 1080/30p | 23.8 | 12.1 | 2340 | 82 | |
3. | Nikon Z6 | Full Frame | 24.3 | 6048 | 4024 | 4K/30p | 25.3 | 14.3 | 3299 | 95 | |
4. | Nikon D600 | Full Frame | 24.2 | 6016 | 4016 | 1080/30p | 25.1 | 14.2 | 2980 | 94 | |
5. | Panasonic GH5 | Four Thirds | 20.2 | 5184 | 3888 | 4K/60p | 23.9 | 13.0 | 807 | 77 | |
6. | Sony A7 III | Full Frame | 24.0 | 6000 | 4000 | 4K/30p | 25.0 | 14.7 | 3730 | 96 | |
7. | Sony A9 | Full Frame | 24.0 | 6000 | 4000 | 4K/30p | 24.9 | 13.3 | 3517 | 92 | |
8. | Sony A7 II | Full Frame | 24.0 | 6000 | 4000 | 1080/60p | 24.9 | 13.6 | 2449 | 90 | |
9. | Sony A77 II | APS-C | 24.0 | 6000 | 4000 | 1080/60p | 24.4 | 13.4 | 1013 | 82 | |
10. | Sony A99 | Full Frame | 24.0 | 6000 | 4000 | 1080/60p | 25.0 | 14.0 | 1555 | 89 | |
11. | Sony A850 | Full Frame | 24.4 | 6048 | 4032 | none | 23.8 | 12.2 | 1415 | 79 |
In the United States, the A77 was initially launched in August 2011 at a price of $1,399.
Camera to camera comparisons
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Camera Model | Sony A77 | |
---|---|---|
Camera Type | Digital single lens reflex | |
Camera Lens | Sony A mount lenses | |
Launch Date | August 2011 | |
Launch Price | USD 1 399 | |
Sensor Specs | ||
Sensor Technology | CMOS | |
Sensor Format | APS-C Sensor | |
Sensor Size | 23.5 x 15.6 mm | |
Sensor Area | 367 mm2 | |
Sensor Diagonal | 28.2 mm | |
Crop Factor | 1.5x | |
Sensor Resolution | 24 Megapixels | |
Image Resolution | 6 000 x 4 000 pixels | |
Pixel Pitch | 3.91 μm | |
Pixel Density | 6.55 MP/cm2 | |
Moiré control | Anti-Alias filter | |
Movie Capability | 1080/60p Video | |
ISO Setting | 100 - 16 000 ISO | |
ISO Boost | 50 - 25 600 ISO | |
Image Processor | BIONZ X | |
DXO Sensor Quality (score) | 78 | |
DXO Color Depth (bits) | 24.0 | |
DXO Dynamic Range (EV) | 13.2 | |
DXO Low Light (ISO) | 801 | |
Screen Specs | ||
Viewfinder Type | Electronic viewfinder | |
Viewfinder Field of View | 100% | |
Viewfinder Magnification | 0.73x | |
Viewfinder Resolution | 2359k dots | |
Top-Level Screen | Control Panel | |
LCD Framing | Live View | |
LCD Size | 3.0 inch | |
LCD Resolution | 921k dots | |
LCD Attachment | Fully flexible screen | |
V-logging Friendliness | Front-flip possible | |
Touch Input | No touchscreen | |
Shooting Specs | ||
Focus System | Phase-detect AF | |
Manual Focusing Aid | Focus Peaking | |
Maximum Shutter Speed | 1/8000s | |
Continuous Shooting | 12 shutter flaps/s | |
Shutter Life Expectancy | 150 000 actuations | |
Silent Shooting | no E-Shutter | |
Time Lapse Photography | no Intervalometer | |
Image Stabilization | In-body stabilization | |
Fill Flash | Built-in Flash | |
Storage Medium | MS or SDXC cards | |
Single or Dual Card Slots | Single card slot | |
UHS card support | UHS-I | |
Connectivity Specs | ||
External Flash | Hotshoe | |
Studio Flash | PC Sync socket | |
USB Connector | USB 2.0 | |
HDMI Port | mini HDMI | |
Microphone Port | External MIC port | |
Wifi Support | no Wifi | |
Geotagging | GPS built-in | |
Body Specs | ||
Environmental Sealing | Weathersealed body | |
Battery Type | Sony NP-FM500H power pack | |
Battery Life (CIPA) | 470 shots per charge | |
Body Dimensions |
143 x 104 x 81 mm (5.6 x 4.1 x 3.2 in) |
|
Camera Weight | 732 g (25.8 oz) |
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