Sony Alpha 7S III vs. Sony Alpha 9 III - Camera Comparison

Comparison of the Sony Alpha 7S III and the Sony Alpha 9 III

Sony Alpha 7S III
86 points
Sony Alpha 9 III
88 points
Sony Alpha 7S III
Sony Alpha 7S III ✭ Camspex.com
96 mm
129 mm
BODY
Sony Alpha 9 III
Sony Alpha 9 III ✭ Camspex.com
97 mm
136 mm
2020
YEARYear of announcement
2023
Aluminium alloy
BODY MATERIAL
Magnesium alloy
Weather
sealed
WEATHER SEALING
Weather
sealed
Sony E
LENS MOUNT
Sony E
n/a
SHUTTER LIFEThe shutter durability as rated by the manufacturer.
n/a
699 g
1.54 lb
129 x 96 x 78 mm
5.1 x 3.8 x 3.1 in.
DIMENSIONS
& WEIGHTLength x Height x Width and the Weight incl. batteries and memory card
DIMENS.
& WEIGHTLength x Height x Width and the Weight incl. batteries and memory card
136 x 97 x 83 mm
5.4 x 3.8 x 3.3 in.
702 g
1.55 lb
Sony Alpha 7S III
Sony Alpha 9 III
12.1 MP
Sony IMX510 Exmor R CMOS Full Frame Sensor
SENSOR The number of effective megapixels (MP). Sensor manufacturer (if known) and sensor type.
SENSOR Sensor manufacturer (if known) and sensor type.
24.6 MP
Sony Exmor RS CMOS Full Frame Sensor
12.1 MP
EFFECTIVE MEGAPIX The number of effective megapixels (MP).
24.6 MP
35.6 x 23.8 mm
SENSOR SIZE
35.6 x 23.8 mm
4240 x 2832 pixels
MAX. RESOLUTIONMaximum still image resolution
MAX. RESOLUT.Maximum still image resolution
6000 x 4000 pixels
1x
CROP FACTORA 50mm lens on a camera with a crop factor of 1.5x would behave like a 75mm lens on a full-frame camera with a crop factor of 1x (50mm x 1.5 = 75mm)
1x
Bayer array
COLOR FILTER
Bayer array
8.4 μm
PIXEL PITCHThe center-to-center distance between two pixels (photosites) on a sensor. The larger the photosites, the more light they can capture and the lower is the level of visible "noise" in captured images.
5.9 μm
Fixed
LOW-PASS FILTERA low-pass filter blurs fine details of an image to eliminate the moiré and the color artifacts of finely patterned structures. Without a low-pass filter images will appear sharper, but there is also a risk of moiré occurring in certain scenes.
Fixed
3:2
NATIVE
ASPECT RATIOThe width to height ratio of the "straight out of the camera" images. However, most modern digital cameras are capable of producing images in various aspect ratios.
ASPECT RATIOThe width to height ratio of the "straight out of the camera" images. However, most modern digital cameras are capable of producing images in various aspect ratios.
3:2
Sony Alpha 7S III
DXOMARK
SENSOR
SCOREAnalysis of the camera image quality by dxomark.com
Sony Alpha 9 III
86
OVERALL SCOREDXOMARK Sensor Overall Score shows a camera's sensor quality in terms of noise, ability to render high contrast, formation of colored noise, ability to shoot in low light.
Not tested
 
23.7
COLOR DEPTHThe color depth performance (DXOMARK Portrait Score) in bits
Not tested
 
13.9
DYNAMIC RANGEThe maximum dynamic range performance (DXOMARK Landscape Score) in exposure value (EV)
Not tested
 
2520
LOW-LIGHT ISOThe low-light sensitivity performance (DXOMARK Sports Score) in ISO sensitivity value
Not tested
 
Sony Alpha 7S III
Sony Alpha 9 III
COVERAGE:
100 %
REAL SIZE:
0.90
VIEW­FINDERThe viewfinder frame COVERAGE in percent and the real viewfinder SIZE (VF magnification corrected by the crop factor of a camera — this way cameras with different sensor sizes can be compared).
COVERAGE:
100 %
REAL SIZE:
0.90
Electronic 
(9 437 184 dot OLED)
VF TYPE
Electronic 
(9 437 184 dot OLED)
Articulated
 1 440 000 dot LCD
REAR SCREEN
Articulated 
2 095 104 dot LCD
3 inch
SCREEN SIZE
3.2 inch
LIVE VIEW & TOUCH SCREEN
No top LCD panel
TOP LCD PANELLCD panel on top of the camera which provides information about the current camera settings.
No top LCD panel
Sony Alpha 7S III
Sony Alpha 9 III
Hybrid detection
AUTOFOCUS SYSTEM
AF SYSTEM
Hybrid detection
Fast Hybrid AF
AUTOFOCUS MODULE
AF MODULE
Fast Hybrid AF
759 (phase)  
425 (contrast)
759
 (phase)  
425
 (contrast)
FOCUS POINTSAutofocus points
as shown in the figures below:

° linear sensors
° cross-type sensors
° dual cross-type sensors
contrast autofocus areas
759 (phase)  
425 (contrast)
759
 (phase)  
425
 (contrast)
0
CROSS-TYPE FOCUS POINTS
CROSS-TYPE FP
0
camspex.com — Autofocus system — Sony Alpha 7S III
-6
EV

100

The minimum exposure value of the AF working range (at 23°C and ISO 100). The smaller this value, the less light is needed for normal autofocus operation.
-5
camspex.com — Autofocus system — Sony Alpha 9 III
94 %
AF COVERAGEFrame coverage by AF sensors in percent.
96 %
None
IN-BODY
AF MOTORAn in-body AF motor gives the ability to auto-focus with older lenses which don't have their own motors.
None
5-axis sensor shift
IN-BODY IMAGE STABILIZATION
IMAGE STABILIZ.
5-axis sensor shift
Sony Alpha 7S III
Sony Alpha 9 III
Dual BIONZ XR
IMAGE
PROCESSOR
Dual BIONZ XR
14 bit RAW, 10 bit HEIF, JPEG
OUTPUT FORMATS
14 bit RAW, 10 bit HEIF, JPEG
Auto, 80 - 102400
(can be extended to 40 - 409600)
ISO SEN­SITIVITY
Auto, 250 - 25600
(can be extended to ISO 125, 51200)
10
fps
CONTINUOUS DRIVEMaximum frames per second (fps) in continuous drive mode when using the mechanical shutter.
CONT. DRIVEMaximum frames per second (fps) in continuous drive mode when using the mechanical shutter.
120
fps
1000 JPEG shots
1000 RAW shots
MAX. BURSTMaximum number of shots in high-speed continuous drive mode until the buffer is full.
192 JPEG shots
96 RAW shots
2160p @ 120 fps (4K)
MAX. VIDEO RESOLUTION
VIDEO
2160p @ 120 fps (4K)
-5/+5 EV  (in 1/3 or 1/2 EV steps)
EXPOSURE COMPENSATION
EXPOSURE COMPENS.
-5/+5 EV  (in 1/3 or 1/2 EV steps)
Bulb,
 
30 sec → 1/8000 sec
SHUTTER SPEED Maximum and minimum possible exposure time in seconds.
Bulb, 
30 sec → 1/80000 sec
Sony Alpha 7S III
Sony Alpha 9 III

X-SYNC:
1/250
No
built-in
flash

No
flash
BUILT-IN FLASH
No
built-in
flash

No
flash

X-SYNC:
1/500
Yes
HOT SHOE
Yes
USB 3.0 (5 Gbit/sec)
USB
USB 3.2 (10 Gbit/sec)
Microphone port, Headphone port, HDMI
CONNECTIONS
CONNECT.
Microphone port, Headphone port, HDMI
BUILT-IN
DEVICES
CFexpress Type A, SD, SDHC, SDXC (UHS-I/II compatible)
STORAGE TYPES
CFexpress Type A, SD, SDHC, SDXC (UHS-I/II compatible)
2
CARD SLOTS
2
510
shots
BATTERY LIFEMaximum number of images that can be shot per single battery charge (according to CIPA).
400
shots

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