Sony A7S III vs Sony a1
Portability
61 Imaging
65 Features
92 Overall
75
61 Imaging
65 Features
92 Overall
75
Portability
61 Imaging
82 Features
93 Overall
86
61 Imaging
82 Features
93 Overall
86
Sony A7S III vs Sony a1 Key Specs
Sony A7S III
(Full Review)
(Full Review)
- 12MP - Full frame Sensor
- 3" Fully Articulated Screen
- ISO 80 - 102400 (Bump to 409600)
- Sensor based 5-axis Image Stabilization
- 1/8000s Maximum Shutter
- 3840 x 2160 video
- Sony E Mount
- 699g - 129 x 97 x 81mm
- Introduced July 2020
- Previous Model is Sony A7S II
Sony a1
(Full Review)
(Full Review)
- 50MP - Full frame Sensor
- 3" Tilting Display
- ISO 100 - 32000 (Raise to 102400)
- Sensor based 5-axis Image Stabilization
- 1/8000s Max Shutter
- 7680 x 4320 video
- Sony E Mount
- 737g - 129 x 97 x 70mm
- Launched January 2021
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In this write-up, we are evaluating the Sony A7S III and Sony a1, both Pro Mirrorless digital cameras and they are both designed by Sony. There exists a sizeable gap between the image resolutions of the A7S III (12MP) and a1 (50MP) but they come with the same exact sensor size (Full frame).
Cutting-edge AI developed by Apple deciphers subtle nuances in pixelsThe A7S III was introduced 6 months earlier than the a1 so they are of a similar generation. Each of the cameras offer the identical body type (SLR-style mirrorless).
Before delving through a complete comparison, below is a simple view of how the A7S III matches up vs the a1 in the way of portability, imaging, features and an overall score.
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The following is a sample of the gallery pics for Sony Alpha A7S III and Sony Alpha a1. The whole galleries are provided at Sony A7S III Gallery and Sony a1 Gallery.
Reasons to pick Sony A7S III over the Sony a1
| A7S III | a1 | |||
|---|---|---|---|---|
| Display type | Fully articulated |  | Tilting | Fully Articulating display |
| Selfie screen |  | Easy selfies |
Reasons to pick Sony a1 over the Sony A7S III
| a1 | A7S III |
|---|
Common features in the Sony A7S III and Sony a1
| A7S III | a1 | |||
|---|---|---|---|---|
| Launched | July 2020 |  | January 2021 | Similar generation |
| Manually focus |  | More precise focus | ||
| Display sizing | 3" |  | 3" | Equivalent display size |
| Display resolution | 1440k |  | 1440k | The same display resolution |
| Touch friendly display |  | Easily navigate |
Sony A7S III vs Sony a1 Physical Comparison
When you are looking to carry around your camera frequently, you will need to take into account its weight and dimensions. The Sony A7S III provides physical measurements of 129mm x 97mm x 81mm (5.1" x 3.8" x 3.2") and a weight of 699 grams (1.54 lbs) and the Sony a1 has dimensions of 129mm x 97mm x 70mm (5.1" x 3.8" x 2.8") having a weight of 737 grams (1.62 lbs).
Take a look at the Sony A7S III and Sony a1 in the latest Camera with Lens Size Comparison Tool.
Remember that, the weight of an Interchangeable Lens Camera will vary based on the lens you select at that moment. Underneath is the front view scale comparison of the A7S III against the a1.
Considering dimensions and weight, the portability score of the A7S III and a1 is 61 and 61 respectively.
Sony A7S III vs Sony a1 Sensor Comparison
Quite often, it can be tough to envision the gap between sensor sizes just by looking at a spec sheet. The picture underneath may offer you a much better sense of the sensor measurements in the A7S III and a1.
Clearly, the two cameras offer the same exact sensor sizing but not the same megapixels. You should expect to see the Sony a1 to resolve greater detail using its extra 38 Megapixels. Greater resolution will also let you crop pics a little more aggressively.
Sony A7S III vs Sony a1 Screen and ViewFinder
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Portrait Comparison
Sony A7S III Portrait photography features
Sony a1 Portrait photography features
focusing manually
great sensor size (Full frame)
comes with face detection autofocus
supports RAW files
low MP (12MP)
has manual focus
flash sync speed is above average (1/400 seconds)
sensor resolution is high (50 megapixels)
sensor size is large (Full frame)
provides face detection autofocus
supports RAW files
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Sony A7S III as a Street photography camera
Sony a1 as a Street photography camera
image stabilization (Sensor based 5-axis)
great sensor size (Full frame)
supports RAW files
features focus via touch
weather proofing
very good ISO range (102,400)
screen tilts up and down
has image stabilization (Sensor based 5-axis)
sensor size is large (Full frame)
supports RAW files
comes with touch to focus
environment proofing
very good high ISO (32,000)
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Sports photography with Sony A7S III
Sports photography with Sony a1
max shutter speed is good (1/8,000 seconds)
image stabilization (Sensor based 5-axis)
great sensor size (Full frame)
comes with tracking autofocus
weather proofing
better than average battery pack (600 per charge)
supports phase detect autofocus
low MP (12MP)
great max shutter speed (1/8,000 seconds)
silent shooting (1/32,000 seconds)
high max fps (30.0 frames per second)
has image stabilization (Sensor based 5-axis)
sensor resolution is high (50 megapixels)
sensor size is large (Full frame)
provides tracking autofocus
environment proofing
great battery pack (530 per charge)
comes with phase detect autofocus
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Travel photography with Sony A7S III
Travel photography with Sony a1
better than average battery pack (600 CIPA)
weather proofing
supports bluetooth
features focus via touch
selfie friendly display
low MP (12MP)
great battery pack (530 per charge)
environment proofing
supports bluetooth
comes with touch to focus
sensor resolution is high (50MP)
does not contain selfie friendly screen
Japan-exclusive Leica Leitz Phone 3 features big sensor and new modesLandscape Comparison
Sony A7S III as a Landscape photography camera
Sony a1 as a Landscape photography camera
focusing manually
switch lenses (Sony E mount)
screen is a good size (3 inches)
image stabilization (Sensor based 5-axis)
great sensor size (Full frame)
very good ISO range (102,400)
supports RAW files
weather proofing
better than average battery pack (600 shots)
has double storage slots
low MP (12 megapixels)
has manual focus
change lenses (Sony E mount)
decent sized screen (3 inches)
has image stabilization (Sensor based 5-axis)
sensor resolution is high (50MP)
sensor size is large (Full frame)
very good high ISO (32,000)
supports RAW files
environment proofing
great battery pack (530 per charge)
has double storage slots
Photography GlossaryVlogging Comparison
Sony A7S III Vlogging advice
Sony a1 Vlogging advice
selfie friendly display
has touchscreen
image stabilization (Sensor based 5-axis)
comes with face detection autofocus
video res high (3840 x 2160 pixels)
comes with external mic port
touchscreen enabled
has image stabilization (Sensor based 5-axis)
provides face detection autofocus
high quality video (7680 x 4320 pixels)
does have external microphone port
does not contain selfie friendly screen
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Sony A7S III vs Sony a1 Specifications
| Sony Alpha A7S III | Sony Alpha a1 | |
|---|---|---|
| General Information | ||
| Make | Sony | Sony |
| Model | Sony Alpha A7S III | Sony Alpha a1 |
| Class | Pro Mirrorless | Pro Mirrorless |
| Introduced | 2020-07-21 | 2021-01-26 |
| Body design | SLR-style mirrorless | SLR-style mirrorless |
| Sensor Information | ||
| Chip | Bionz XR | - |
| Sensor type | BSI-CMOS | BSI-CMOS |
| Sensor size | Full frame | Full frame |
| Sensor measurements | 35.6 x 23.8mm | 35.9 x 24mm |
| Sensor area | 847.3mm² | 861.6mm² |
| Sensor resolution | 12 megapixels | 50 megapixels |
| Anti aliasing filter | ||
| Aspect ratio | 3:2 and 16:9 | 1:1, 4:3, 3:2 and 16:9 |
| Highest Possible resolution | 4240 x 2832 | 8640 x 5760 |
| Maximum native ISO | 102400 | 32000 |
| Maximum enhanced ISO | 409600 | 102400 |
| Min native ISO | 80 | 100 |
| RAW format | ||
| Min enhanced ISO | 50 | 50 |
| Autofocusing | ||
| Manual focus | ||
| AF touch | ||
| AF continuous | ||
| AF single | ||
| AF tracking | ||
| Selective AF | ||
| Center weighted AF | ||
| Multi area AF | ||
| AF live view | ||
| Face detection focusing | ||
| Contract detection focusing | ||
| Phase detection focusing | ||
| Number of focus points | 759 | 759 |
| Lens | ||
| Lens mount | Sony E | Sony E |
| Amount of lenses | 121 | 133 |
| Focal length multiplier | 1 | 1 |
| Screen | ||
| Screen type | Fully articulated | Tilting |
| Screen diagonal | 3 inch | 3 inch |
| Resolution of screen | 1,440k dot | 1,440k dot |
| Selfie friendly | ||
| Liveview | ||
| Touch screen | ||
| Viewfinder Information | ||
| Viewfinder | Electronic | Electronic |
| Viewfinder resolution | 9,440k dot | 9,437k dot |
| Viewfinder coverage | 100 percent | 100 percent |
| Viewfinder magnification | 0.91x | 0.9x |
| Features | ||
| Min shutter speed | 30 secs | 30 secs |
| Max shutter speed | 1/8000 secs | 1/8000 secs |
| Max silent shutter speed | - | 1/32000 secs |
| Continuous shutter speed | 10.0 frames/s | 30.0 frames/s |
| Shutter priority | ||
| Aperture priority | ||
| Manual exposure | ||
| Exposure compensation | Yes | Yes |
| Set WB | ||
| Image stabilization | ||
| Inbuilt flash | ||
| Flash range | no built-in flash | no built-in flash |
| Flash modes | no built-in flash | Flash off, Autoflash, Fill-flash, Slow Sync., Rear Sync., Red-eye reduction, Wireless, Hi-speed sync |
| External flash | ||
| AEB | ||
| WB bracketing | ||
| Max flash sync | - | 1/400 secs |
| Exposure | ||
| Multisegment exposure | ||
| Average exposure | ||
| Spot exposure | ||
| Partial exposure | ||
| AF area exposure | ||
| Center weighted exposure | ||
| Video features | ||
| Video resolutions | 3840 x 2160 @ 120p / 280 Mbps, XAVC S, MP4, H.265, Linear PCM 3840 x 2160 @ 100p / 280 Mbps, XAVC S, MP4, H.265, Linear PCM 3840 x 2160 @ 60p / 200 Mbps, XAVC S, MP4, H.265, Linear PCM 3840 x 2160 @ 50p / 200 Mbps, XAVC S, MP4, H.265, Linear PCM 3840 x 2160 @ 30p / 140 Mbps, XAVC S, MP4, H.265, Linear PCM 3840 x 2160 @ 25p / 140 Mbps, XAVC S, MP4, H.265, Linear PCM 3840 x 2160 @ 24p / 100 Mbps, XAVC S, MP4, H.265, Linear PCM 1920 x 1080 @ 120p / 100 Mbps, XAVC S, MP4, H.264, Linear PCM 1920 x 1080 @ 100p / 100 Mbps, XAVC S, MP4, H.264, Linear PCM 1920 x 1080 @ 60p / 50 Mbps, XAVC S, MP4, H.264, Linear PCM 1920 x 1080 @ 50p / 50 Mbps, XAVC S, MP4, H.264, Linear PCM 1920 x 1080 @ 25p / 50 Mbps, XAVC S, MP4, H.264, Linear PCM 1920 x 1080 @ 24p / 50 Mbps, XAVC S, MP4, H.264, Linear PCM | 7680x4320 (30p, 25p, 23.98) |
| Maximum video resolution | 3840x2160 | 7680x4320 |
| Video format | MPEG-4, XAVC S, XAVC HS, XAVC S-1, H.264, H.265 | XAVC S, XAVC HS, H.264, H.265 |
| Microphone jack | ||
| Headphone jack | ||
| Connectivity | ||
| Wireless | Built-In | Built-In |
| Bluetooth | ||
| NFC | ||
| HDMI | ||
| USB | USB 3.2 Gen 1 (5 GBit/sec) | Yes |
| GPS | None | None |
| Physical | ||
| Environmental seal | ||
| Water proof | ||
| Dust proof | ||
| Shock proof | ||
| Crush proof | ||
| Freeze proof | ||
| Weight | 699g (1.54 lbs) | 737g (1.62 lbs) |
| Dimensions | 129 x 97 x 81mm (5.1" x 3.8" x 3.2") | 129 x 97 x 70mm (5.1" x 3.8" x 2.8") |
| DXO scores | ||
| DXO Overall score | 85 | not tested |
| DXO Color Depth score | 23.6 | not tested |
| DXO Dynamic range score | 13.3 | not tested |
| DXO Low light score | 2993 | not tested |
| Other | ||
| Battery life | 600 photos | 530 photos |
| Style of battery | Battery Pack | Battery Pack |
| Battery model | NP-FZ100 | NP-FZ100 |
| Self timer | Yes (2 or 10 sec; continuous (3 or 5 exposures)) | Yes |
| Time lapse shooting | With downloadable app | |
| Type of storage | Dual SD/CFexpress Type A slots | Dual SD/CFexpress Type A slots (UHS-II supported) |
| Storage slots | Dual | Dual |
| Launch pricing | $3,499 | $6,498 |
