Fujifilm GFX 100 vs Canon EOS 20D Astrophotography

This is a full comparison between the cameras Fujifilm GFX 100 and Canon EOS 20D Astrophotography. We compare them by looking at the categories you see below.

Manufacturing

Fujifilm GFX 100 is manufacturered by Fujifilm but Canon EOS 20D Astrophotography is from Canon. Both Fujifilm and Canon are well known brands though.

Fujifilm GFX 100 were released 2019 and Canon EOS 20D Astrophotography was released 2005. That is a 14 years difference. In tech, this period can be of interest since technology is always improving, etc.

Camera Released
Fujifilm GFX 100 2019
Canon EOS 20D Astrophotography 2005

Type of camera

Fujifilm GFX 100 is a Mirrorless camera while Canon EOS 20D Astrophotography is a DSLR camera. More information about their differences will come soon.

Sensors / crop factor

These cameras have different sensors. Fujifilm GFX 100 has a "Fujifilm Medium Format"-sensor while Canon EOS 20D Astrophotography has a "Canon APS-C"-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 **
Fujifilm GFX 100 39.5 mm
Fujifilm Medium Format sensor
Crop factor/focal length multiplier by * 0.79
Canon EOS 20D Astrophotography 80 mm
Canon APS-C sensor
Crop factor/focal length multiplier by * 1.6

** 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:

Resolution

Fujifilm GFX 100 has a 102 MP (Megapixels) resolution while Canon EOS 20D Astrophotography has 8,2 MP. If we break down this in more detail this is the data behind the numbers:

Camera Megapixels
Fujifilm GFX 100 102 MP
101756928 pixels
11648 x 8736
Canon EOS 20D Astrophotography 8,2 MP
8185344 pixels
3504 x 2336

Fujifilm GFX 100 has a 1143 % larger resolution than Canon EOS 20D Astrophotography. 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

Fujifilm GFX 100 has a larger ISO-range than Canon EOS 20D Astrophotography. Fujifilm GFX 100 has an ISO range that stretches from 10 to 12800 while Canon EOS 20D Astrophotography has 100 to 3200.

Camera ISO Range
Fujifilm GFX 100 10-12800
Canon EOS 20D Astrophotography 100-3200

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 Fujifilm GFX 100
Lens compatibility chart for Canon EOS 20D Astrophotography

Pictures per second

Depending on what you are shooting the FPS, or frames/pictures per second, can definitely be of interest. Fujifilm GFX 100 can shoot up to 5 pictures per seconds and Canon EOS 20D Astrophotography can shoot up to 5 pictures per seconds.

Camera FPS (Frames per second)
Fujifilm GFX 100 5
Canon EOS 20D Astrophotography 5

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 Fujifilm GFX 100. Unfortunately Canon EOS 20D Astrophotography 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.

Fujifilm GFX 100 weighs 1320 gr (equal to 2.91 lb) which is 71% heavier than Canon EOS 20D Astrophotography and its 770 gr (or 1.7 lb).

Camera Weight
Fujifilm GFX 100 1320 gr
2.91 lb
Canon EOS 20D Astrophotography 770 gr
1.7 lb

Fujifilm GFX 100 vs Canon EOS 20D Astrophotography Specs

Below you will find the complete and detailed technical specs for both Fujifilm GFX 100 and Canon EOS 20D Astrophotography, 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
Fujifilm GFX 100
Canon EOS 20D Astrophotography
Name Fujifilm GFX 100 Canon EOS 20D Astrophotography
Manufacturer Fujifilm Canon
Release Date and Price
Fujifilm GFX 100
Canon EOS 20D Astrophotography
Release Year 2019 2005
Release Date 2019-05-23 2005-06-01
MSRP 9999 USD 1499 USD
Buy it today
Camera Type
Fujifilm GFX 100
Canon EOS 20D Astrophotography
Camera Type Mirrorless DSLR
Sensor
Fujifilm GFX 100
Canon EOS 20D Astrophotography
Sensor Size Medium Format (approx 44 x 33 mm) APS-C (approx 22.3 x 14.9 mm)
Sensor Type BSI-CMOS CMOS
Resolution 11648 x 8736 pixels 3504 x 2336 pixels
Megapixels 102 MP 8,2 MP
Image Processor X-Processor 4 DIGIC 2
Image
Fujifilm GFX 100
Canon EOS 20D Astrophotography
ISO Range 10 - 12800 100 - 3200
White Balance Presets 7 6
Custom White Balance Yes Yes
Image Stabilization Yes
(Sensor-Shift (5-axis))
No
Image Stabilization CIPA Rating 0 stops 0 stops
Uncompressed format RAW + TIFF RAW
Optics & Focus
Fujifilm GFX 100
Canon EOS 20D Astrophotography
Autofocus Motor Yes Yes
Autofocus Contract Detect (sensor)
Phase Detect
Multi Area
Center
Selective Single Point
Tracking
Single
Continuous
Touch
Face Detection
LiveView
Phase Detect
Multi Area
Selective Single Point
Single
Continuous
Focus Points 425 9
Lens Mount Fujifilm G

See Compatible Lenses
Canon EF
Canon EF-S

See Compatible Lenses
Focal Length Multiplier Medium Format
0.79x multiplier
Example:
24 mm becomes 19 mm
50 mm becomes 40 mm
100 mm becomes 79 mm
200 mm becomes 158 mm
APS-C Sensor
1.6x multiplier
Example:
24 mm becomes 38 mm
50 mm becomes 80 mm
100 mm becomes 160 mm
200 mm becomes 320 mm
Screen & Viewfinder
Fujifilm GFX 100
Canon EOS 20D Astrophotography
Articulated LCD Tilting Fixed
Screen size 3.2” 1.8”
Screen dots 2360000 118000
Touch screen Yes No
Screen type TFT LCD N/A
Live view Yes No
Viewfinder Type Electronic (optional) Optical (pentaprism)
Viewfinder Coverage 100% 95%
Viewfinder Magnification 0.68× (0.86× 35mm equiv.) 0.9× (0.56× 35mm equiv.)
Viewfinder Resolution 5760000 N/A
Photography features
Fujifilm GFX 100
Canon EOS 20D Astrophotography
Frames per second 5 fps 5 fps
Minimum Shutter Speed 30 seconds 30 seconds
Maximum Shutter Speed 1/4000 seconds 1/8000 seconds
Built-in Flash No Yes
Built-in Flash Range N/A 12 meters
External Flash Yes Yes
Self-Timer Yes Yes
Time-lapse Yes Yes
Metering modes Multi
Center Weighted
Spot
Average
Multi
Center Weighted
Partial
Exposure Compensation +/- 5 (at 1/3 EV steps) +/- 2 (at 1/3 EV, 1/2 EV steps)
Videography features
Fujifilm GFX 100
Canon EOS 20D Astrophotography
Video recording Yes No
Video format MPEG4
H.264
H.265
N/A
Video resolution 1920 x 1080
3840 x 2160
4096 x 2160
N/A
Built-in Microphone Yes No
Built-in Speakers Yes No
Storage
Fujifilm GFX 100
Canon EOS 20D Astrophotography
Memory Card SD/SDHC
Compact Flash
Connectivity
Fujifilm GFX 100
Canon EOS 20D Astrophotography
HDMI Output Yes No
Microphone Port Yes No
Headphone Port Yes No
Wireless Yes
Built-in (802.11ac + Bluetooth)
No
Remote Control Yes (via wired remote or smartphone) Yes (N3 connector)
GPS No No
Body & Dimensions
Fujifilm GFX 100
Canon EOS 20D Astrophotography
Enviromentally sealed Yes No
Battery Battery Pack Battery Pack
Battery Details Built-in grip holds one or two NP-T125 batteries
Battery Pack BP-511A
Battery Life (CIPA) 800 shots 1000 shots
Width 156 mm 144 mm
Height 144 mm 106 mm
Depth 75 mm 72 mm
Weight 1320 gram 770 gram