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.

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.

** 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:

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.

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.

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).

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
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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