Sony a7S III vs Nikon D850

This is a full comparison between the cameras Sony a7S III and Nikon D850. We compare them by looking at the categories you see below.

Manufacturing

Sony a7S III is manufacturered by Sony but Nikon D850 is from Nikon. Both Sony and Nikon are well known brands though.

Sony a7S III were released 2020 and Nikon D850 was released 2017. That is a 3 years difference. In tech, this period can be of interest since technology is always improving, etc.

Camera Released
Sony a7S III 2020
Nikon D850 2017

Type of camera

Sony a7S III is a Mirrorless camera while Nikon D850 is a DSLR camera. More information about their differences will come soon.

Sensors / crop factor

Even though the camera sensors might be called differently they are both considered Full frame which means that the focal length of the lenses is not affected. There is no crop factor on any of these cameras and sensors.

Camera Focal length, 50mm f/1.8 **
Sony a7S III 50 mm
Full-frame sensor
No crop factor/focal length multiplier
Nikon D850 50 mm
Full-frame sensor
No crop factor/focal length multiplier

** Experienced focal length when using a lens such as a common "50mm f/1.8"

Learn more about crop factor and focal length multiplier here:
Camera selection can affect the focal length (Sony)
Camera selection can affect the focal length (Nikon)

Resolution

Sony a7S III has a 12 MP (Megapixels) resolution while Nikon D850 has 46 MP. If we break down this in more detail this is the data behind the numbers:

Camera Megapixels
Sony a7S III 12 MP
12007680 pixels
4240 x 2832
Nikon D850 46 MP
45441024 pixels
8256 x 5504

Nikon D850 has a 278 % larger resolution than Sony a7S III. This could give you more details in the picture but also a possibility to crop more in the pictures, afterward while editing the pictures, if needed that is.

ISO range

Sony a7S III has a larger ISO-range than Nikon D850. Sony a7S III has an ISO range that stretches from 80 to 102400 while Nikon D850 has 64 to 25600.

Camera ISO Range
Sony a7S III 80-102400
Nikon D850 64-25600

Autofocus and lens compatibility

Both of these cameras have a built-in autofocus motor. Some lenses, that support autofocus, do not have an autofocus motor of their own but this won't cause any problems with these two cameras.

Here is a complete overview of which lenses work with each camera:
Lens compatibility chart for Sony a7S III
Lens compatibility chart for Nikon D850

Pictures per second

Depending on what you are shooting the FPS, or frames/pictures per second, can definitely be of interest. Sony a7S III can shoot up to 10 pictures per seconds and Nikon D850 can shoot up to 9 pictures per seconds.

Camera FPS (Frames per second)
Sony a7S III 10
Nikon D850 9

Ability to record movies

It is becoming more and more popular to record movies with digital cameras.

In this case, both Sony a7S III and Nikon D850 can shoot movies.

Weight

The weight of the camera can be an extremely important factor, especially if the camera is about to be used, or carried around, for several hours at a time.

Nikon D850 weighs 1005 gr (equal to 2.22 lb) which is 44% heavier than Sony a7S III and its 699 gr (or 1.54 lb).

Camera Weight
Sony a7S III 699 gr
1.54 lb
Nikon D850 1005 gr
2.22 lb

Sony a7S III vs Nikon D850 Specs

Below you will find the complete and detailed technical specs for both Sony a7S III and Nikon D850, next to each other. Each category of data is a link to an article covering the subject, giving you a deeper understanding so you can better understand the strengths and weaknesses of the two camera models.

Product
Sony a7S III
Nikon D850
Name Sony a7S III Nikon D850
Manufacturer Sony Nikon
Release Date and Price
Sony a7S III
Nikon D850
Release Year 2020 2017
Release Date 2020-07-28 2017-07-25
MSRP 3499 USD 3299 USD
Buy it today
Camera Type
Sony a7S III
Nikon D850
Camera Type Mirrorless DSLR
Sensor
Sony a7S III
Nikon D850
Sensor Size Full Frame (approx 36 x 24 mm) Full Frame (approx 36 x 23.9 mm)
Also known as "FX"
Sensor Type BSI-CMOS BSI-CMOS
Resolution 4240 x 2832 pixels 8256 x 5504 pixels
Megapixels 12 MP 46 MP
Image Processor Bionz XR EXPEED 5
Image
Sony a7S III
Nikon D850
ISO Range 80 - 102400 64 - 25600
White Balance Presets 7 14
Custom White Balance Yes Yes
Image Stabilization Yes
(Sensor-Shift (5-axis))
No
Image Stabilization CIPA Rating 5.5 stops 0 stops
Uncompressed format RAW RAW + TIFF
Optics & Focus
Sony a7S III
Nikon D850
Autofocus Motor Yes Yes
Autofocus Contract Detect (sensor)
Phase Detect
Multi Area
Center
Selective Single Point
Tracking
Single
Continuous
Touch
Face Detection
LiveView
Contract Detect (sensor)
Phase Detect
Multi Area
Center
Selective Single Point
Tracking
Single
Continuous
Touch
Face Detection
LiveView
Focus Points 759 151
Lens Mount Sony E

See Compatible Lenses
Nikon F

See Compatible Lenses
Focal Length Multiplier Full frame
No multiplier
Example:
24 mm remains 24 mm
50 mm remains 50 mm
100 mm remains 100 mm
200 mm remains 200 mm
FX (Full frame)
No multiplier
Example:
24 mm remains 24 mm
50 mm remains 50 mm
100 mm remains 100 mm
200 mm remains 200 mm
Screen & Viewfinder
Sony a7S III
Nikon D850
Articulated LCD Fully articulated Tilting
Screen size 3” 3.2”
Screen dots 1440000 2359000
Touch screen Yes Yes
Screen type TFT LCD TFT LCD
Live view Yes Yes
Viewfinder Type Electronic Optical (pentaprism)
Viewfinder Coverage 100% 100%
Viewfinder Magnification 0.91x 0.75×
Viewfinder Resolution 9440000 0
Photography features
Sony a7S III
Nikon D850
Frames per second 10 fps 9 fps
Minimum Shutter Speed 30 seconds 30 seconds
Maximum Shutter Speed 1/8000 seconds 1/8000 seconds
Built-in Flash No No
Built-in Flash Range N/A N/A
External Flash Yes Yes
Self-Timer Yes Yes
Time-lapse No Yes
Metering modes Multi
Center Weighted
Highlight Weighted
Spot
Average
Multi
Center Weighted
Highlight Weighted
Spot
Exposure Compensation +/- 5 (at 1/3 EV, 1/2 EV steps) +/- 5 (at 1/3 EV, 1/2 EV, 1 EV steps)
Videography features
Sony a7S III
Nikon D850
Video recording Yes Yes
Video format MPEG4
H.264
H.265
XAVC-S
XAVC-HS
MPEG4
Video resolution 1920 x 1080
3840 x 2160
1280 x 720
1920 x 1080
3840 x 2160
Built-in Microphone Yes Yes
Built-in Speakers Yes Yes
Storage
Sony a7S III
Nikon D850
Memory Card Compact Flash Express
SD/SDHC
SD/SDHC
XQD
Connectivity
Sony a7S III
Nikon D850
HDMI Output Yes Yes
Microphone Port Yes Yes
Headphone Port Yes Yes
Wireless Yes
Built-in (802.11ac (dual band) + Bluetooth)
Yes
Built-In ( 802.11b/g + NFC + Bluetooth 4.1 LE)
Remote Control Yes (wireless or smartphone) Yes (wired, wireless, smartphone)
GPS No No
Body & Dimensions
Sony a7S III
Nikon D850
Enviromentally sealed Yes Yes
Battery Battery Pack Battery Pack
Battery Details NP-FZ100 lithium-ion battery charger
EN-EL15a lithium-ion battery & charger
Battery Life (CIPA) 600 shots 1840 shots
Width 129 mm 146 mm
Height 97 mm 124 mm
Depth 81 mm 79 mm
Weight 699 gram 1005 gram