How many Megapixels does the Sony A7 III have?
The Sony Alpha A7 III is equipped with a a full frame sensor that offers an image resolution of 24 megapixels (MP), or 24 million pixels. With its native aspect ratio of 3:2, the sensor has 6 000 horizontal pixels and 4 000 vertical pixels.
A 35mm film slide or negative contains 5-15 MP of useful detail, so that the Sony A7 III can be considered to be a high-resolution camera that outresolves any 35mm film camera.
A high megapixel count makes it possible to crop any captured image substantially or to make very large prints from the image file. On the downside, large megapixel files are slower to transfer and take up more storage space on the computer harddisk. Also, high-resolution imaging requires sharper, more expensive lenses than low-res picture taking.
How large can I print with 24 MP?
The maximum print size of the Sony A7 III for good quality output (200 dots per inch) amounts to 30 x 20 inches or 76.2 x 50.8 cm, for very good quality (250 dpi) 24 x 16 inches or 61 x 40.6 cm, and for excellent quality (300 dpi) 20 x 13.3 inches or 50.8 x 33.9 cm. Few people actually print their images that large on a regular basis, but it is nice to have the option to make very large prints of exceptional shots. Also, as mentioned earlier, a key advantage of high-MP cameras is that it is possible to crop an image ex-post and thereby, for example, change the composition of the capture or zoom in on some detail.
Sensor specs and performance
The table below compares the sensor specs of the Sony A7 III to those of several similar cameras. In addition to sensor class and megapixel count, DXO values are reported as indicators of the sensor's imaging quality (higher is better). Three aspects are covered: 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.
|1.||Sony A7 III||Full Frame||24.0||6000||4000||4K/30p||25.0||14.7||3730||96|
|2.||Canon 6D Mark II||Full Frame||26.0||6240||4160||1080/60p||24.4||11.9||2862||85|
|3.||Nikon Z6||Full Frame||24.3||6048||4024||4K/30p||25.3||14.3||3299||95|
|4.||Sony A7 IV||Full Frame||32.7||7008||4672||4K/60p||25.4||14.7||3379||97|
|5.||Sony A7C||Full Frame||24.0||6000||4000||4K/30p||25.0||14.7||3407||95|
|6.||Sony A9 II||Full Frame||24.0||6000||4000||4K/30p||25.0||14.0||3434||93|
|7.||Sony A7R IV||Full Frame||60.2||9504||6336||4K/30p||26.0||14.8||3344||99|
|8.||Sony A7R III||Full Frame||42.2||7952||5304||4K/30p||26.0||14.7||3523||100|
|9.||Sony A9||Full Frame||24.0||6000||4000||4K/30p||24.9||13.3||3517||92|
|10.||Sony A7 II||Full Frame||24.0||6000||4000||1080/60p||24.9||13.6||2449||90|
|11.||Sony A7||Full Frame||24.0||6000||4000||1080/60p||24.8||14.2||2248||90|
In the United States, the A7 III was initially launched in February 2018 at a price of $1,999.
Camera to camera comparisons
If you would like to see a side-by-side review with another camera, just use the search menu below. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.
|Camera Model||Sony A7 III|
|Camera Type||Mirrorless system camera|
|Camera Lens||Sony E mount lenses|
|Launch Date||February 2018|
|Launch Price||USD 1 999|
|Sensor Format||Full Frame Sensor|
|Sensor Size||35.6 x 23.8 mm|
|Sensor Area||847 mm2|
|Sensor Diagonal||42.8 mm|
|Sensor Resolution||24 Megapixels|
|Image Resolution||6 000 x 4 000 pixels|
|Pixel Pitch||5.94 μm|
|Pixel Density||2.83 MP/cm2|
|Moiré control||Anti-Alias filter|
|Movie Capability||4K/30p Video|
|ISO Setting||100 - 51 200 ISO|
|ISO Boost||50 - 204 800 ISO|
|Image Processor||BIONZ X|
|DXO Sensor Quality (score)||96|
|DXO Color Depth (bits)||25.0|
|DXO Dynamic Range (EV)||14.7|
|DXO Low Light (ISO)||3730|
|Viewfinder Type||Electronic viewfinder|
|Viewfinder Field of View||100%|
|Viewfinder Resolution||2359k dots|
|Top-Level Screen||no Top Display|
|LCD Framing||Live View|
|LCD Size||3.0 inch|
|LCD Resolution||922k dots|
|LCD Attachment||Tilting screen|
|V-logging Friendliness||No front-flip|
|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||200 000 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|
|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|
|Environmental Sealing||Weathersealed body|
|Battery Type||NP-FZ100 power pack|
|Battery Life (CIPA)||610 shots per charge|
|In-Camera Charging||USB charging|
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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