Sony a7R IV vs Nikon D100

This is a full comparison between the cameras Sony a7R IV and Nikon D100. We compare them by looking at the categories you see below.

Manufacturing

Sony a7R IV is manufacturered by Sony but Nikon D100 is from Nikon. Both Sony and Nikon are well known brands though.

Sony a7R IV were released 2019 and Nikon D100 was released 2002. That is a 17 years difference. In tech, this period can be of interest since technology is always improving, etc.

Camera Released
Sony a7R IV 2019
Nikon D100 2002

Type of camera

Sony a7R IV is a Mirrorless camera while Nikon D100 is a DSLR camera. More information about their differences will come soon.

Sensors / crop factor

These cameras have different sensors. Sony a7R IV has a "Sony Full Frame"-sensor while Nikon D100 has a "Nikon DX"-sensor, and their difference in sensors will also affect the crop factor and experience focal length. See the table below.

Camera Focal length, 50mm f/1.8 **
Sony a7R IV 50 mm
Full-frame sensor
No crop factor/focal length multiplier
Nikon D100 75 mm
Nikon DX sensor
Crop factor/focal length multiplier by * 1.5

** 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 a7R IV has a 61 MP (Megapixels) resolution while Nikon D100 has 6 MP. If we break down this in more detail this is the data behind the numbers:

Camera Megapixels
Sony a7R IV 61 MP
60217344 pixels
9504 x 6336
Nikon D100 6 MP
6016000 pixels
3008 x 2000

Sony a7R IV has a 901 % larger resolution than Nikon D100. 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 a7R IV has a larger ISO-range than Nikon D100. Sony a7R IV has an ISO range that stretches from 100 to 32000 while Nikon D100 has 200 to 1600.

Camera ISO Range
Sony a7R IV 100-32000
Nikon D100 200-1600

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 a7R IV
Lens compatibility chart for Nikon D100

Pictures per second

Depending on what you are shooting the FPS, or frames/pictures per second, can definitely be of interest. Sony a7R IV can shoot up to 10 pictures per seconds and Nikon D100 can shoot up to 3 pictures per seconds.

Camera FPS (Frames per second)
Sony a7R IV 10
Nikon D100 3

Ability to record movies

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

When comparing these two cameras there is only one of them that can shoot movies and that is Sony a7R IV. Unfortunately Nikon D100 does not support recording movies and movie clips.

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 D100 weighs 780 gr (equal to 1.72 lb) which is 17% heavier than Sony a7R IV and its 665 gr (or 1.47 lb).

Camera Weight
Sony a7R IV 665 gr
1.47 lb
Nikon D100 780 gr
1.72 lb

Sony a7R IV vs Nikon D100 Specs

Below you will find the complete and detailed technical specs for both Sony a7R IV and Nikon D100, 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 a7R IV
Nikon D100
Name Sony a7R IV Nikon D100
Manufacturer Sony Nikon
Release Date and Price
Sony a7R IV
Nikon D100
Release Year 2019 2002
Release Date 2019-07-16 2002-02-21
MSRP 3499 USD 1999 USD
Buy it today
Camera Type
Sony a7R IV
Nikon D100
Camera Type Mirrorless DSLR
Sensor
Sony a7R IV
Nikon D100
Sensor Size Full Frame (approx 36 x 24 mm) APS-C (approx 23.7 x 15.5 mm)
Also known as "DX"
Sensor Type BSI-CMOS CCD
Resolution 9504 x 6336 pixels 3008 x 2000 pixels
Megapixels 61 MP 6 MP
Image Processor Bionz X EXPEED
Image
Sony a7R IV
Nikon D100
ISO Range 100 - 32000 200 - 1600
White Balance Presets 9 6
Custom White Balance Yes Yes
Image Stabilization Yes
(Sensor-Shift)
No
Image Stabilization CIPA Rating 5.5 stops 0 stops
Uncompressed format RAW RAW
Optics & Focus
Sony a7R IV
Nikon D100
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
Selective Single Point
Single
Continuous
Focus Points 567 5
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
DX / APS-C (1.5x)
1.5x multiplier
Example:
24 mm becomes 36 mm
50 mm becomes 75 mm
100 mm becomes 150 mm
200 mm becomes 300 mm
Screen & Viewfinder
Sony a7R IV
Nikon D100
Articulated LCD Tilting Fixed
Screen size 3” 1,8”
Screen dots 1440000 118000
Touch screen Yes No
Screen type TFT LCD N/A
Live view Yes No
Viewfinder Type Electronic Optical (pentaprism)
Viewfinder Coverage 100% 95%
Viewfinder Magnification 0.78x 0.8× (0.53× 35mm equiv.)
Viewfinder Resolution 5760000 N/A
Photography features
Sony a7R IV
Nikon D100
Frames per second 10 fps 3 fps
Minimum Shutter Speed 30 seconds 30 seconds
Maximum Shutter Speed 1/8000 seconds 1/4000 seconds
Built-in Flash No Yes
Built-in Flash Range N/A 11 meters
External Flash Yes Yes
Self-Timer Yes Yes
Time-lapse Yes No
Metering modes Multi
Center Weighted
Highlight Weighted
Spot
Average
Multi
Center Weighted
Spot
Exposure Compensation +/- 5 (at 1/3 EV, 1/2 EV steps) +/- 5 (at 1/3 EV, 1/2 EV steps)
Videography features
Sony a7R IV
Nikon D100
Video recording Yes No
Video format MPEG4
H.264
XAVC-S
N/A
Video resolution 1920 x 1080
3840 x 2160
N/A
Built-in Microphone Yes No
Built-in Speakers Yes No
Storage
Sony a7R IV
Nikon D100
Memory Card SD/SDHC
Compact Flash
Connectivity
Sony a7R IV
Nikon D100
HDMI Output Yes Yes
Microphone Port Yes No
Headphone Port Yes No
Wireless Yes
Built-in (802.11ac + Bluetooth 4.1 + NFC)
No
Remote Control Yes (via smartphone) Yes (Via Optional vertical grip or software)
GPS No No
Body & Dimensions
Sony a7R IV
Nikon D100
Enviromentally sealed Yes No
Battery Battery Pack Battery Pack
Battery Details NP-FZ100 lithium-ion battery & charger
Nikon EN-EL3 lithium-ion battery
Battery Life (CIPA) 670 shots N/A
Width 129 mm 144 mm
Height 96 mm 116 mm
Depth 78 mm 81 mm
Weight 665 gram 780 gram