Fujifilm GFX 100S vs Sony a900

This is a full comparison between the cameras Fujifilm GFX 100S and Sony a900. We compare them by looking at the categories you see below.

Manufacturing

Fujifilm GFX 100S is manufacturered by Fujifilm but Sony a900 is from Sony. Both Fujifilm and Sony are well known brands though.

Type of camera

Fujifilm GFX 100S is a Mirrorless camera while Sony a900 is a DSLR camera. More information about their differences will come soon.

Sensors / crop factor

These cameras have different sensors. Fujifilm GFX 100S has a "Fujifilm Medium Format"-sensor while Sony a900 has a "Sony Full Frame"-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 100S has a 102 MP (Megapixels) resolution while Sony a900 has 25 MP. If we break down this in more detail this is the data behind the numbers:

Fujifilm GFX 100S has a 317 % larger resolution than Sony a900. 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 100S has a larger ISO-range than Sony a900. Fujifilm GFX 100S has an ISO range that stretches from 100 to 12800 while Sony a900 has 100 to 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 Fujifilm GFX 100S
Lens compatibility chart for Sony a900

Pictures per second

Depending on what you are shooting the FPS, or frames/pictures per second, can definitely be of interest. Fujifilm GFX 100S can shoot up to 5 pictures per seconds and Sony a900 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 100S. Unfortunately Sony a900 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 100S weighs 900 gr (equal to 1.98 lb) which is 1% heavier than Sony a900 and its 895 gr (or 1.97 lb).

Fujifilm GFX 100S vs Sony a900 Specs

Below you will find the complete and detailed technical specs for both Fujifilm GFX 100S and Sony a900, 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 100S	Sony a900
Name	Fujifilm GFX 100S	Sony a900
Manufacturer	Fujifilm	Sony
Release Date and Price	Fujifilm GFX 100S	Sony a900
Release Year	2021	2008
Release Date	2021-01-27	2008-09-09
MSRP	5999 USD	2999 USD
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Camera Type	Fujifilm GFX 100S	Sony a900
Camera Type	Mirrorless	DSLR
Sensor	Fujifilm GFX 100S	Sony a900
Sensor Size	Medium Format (approx 44 x 33 mm)	Full Frame (approx 36 x 24 mm)
Sensor Type	BSI-CMOS	CMOS
Resolution	11648 x 8736 pixels	6048 x 4032 pixels
Megapixels	102 MP	25 MP
Image Processor	X-Processor 4	Bionz
Image	Fujifilm GFX 100S	Sony a900
ISO Range	100 - 12800	100 - 1600
White Balance Presets	7	7
Custom White Balance	Yes	Yes
Image Stabilization	Yes (Sensor-Shift)	Yes (Sensor-Shift)
Image Stabilization CIPA Rating	6 stops	0 stops
Uncompressed format	RAW + TIFF	RAW
Optics & Focus	Fujifilm GFX 100S	Sony a900
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 Center Selective Single Point Single Continuous
Focus Points	425	9
Lens Mount	Fujifilm G See Compatible Lenses	Sony A 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	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	Fujifilm GFX 100S	Sony a900
Articulated LCD	Tilting	Fixed
Screen size	3.2”	3”
Screen dots	2360000	921600
Touch screen	Yes	No
Screen type	TFT LCD	TFT Xtra Fine color LCD
Live view	Yes	No
Viewfinder Type	Electronic	Optical (pentaprism)
Viewfinder Coverage	100%	100%
Viewfinder Magnification	0.61× (0.77× 35mm equiv.)	0.74x
Viewfinder Resolution	3690000	N/A
Photography features	Fujifilm GFX 100S	Sony a900
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	No
Built-in Flash Range	N/A	N/A
External Flash	Yes	Yes
Self-Timer	Yes	Yes
Time-lapse	Yes	No
Metering modes	Multi Center Weighted Spot Average	Multi Center Weighted Spot
Exposure Compensation	+/- 5 (at 1/3 EV steps)	+/- 3 (at 1/3 EV steps)
Videography features	Fujifilm GFX 100S	Sony a900
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 100S	Sony a900
Memory Card	SD/SDHC	Compact Flash Memory Stick Pro Duo
Connectivity	Fujifilm GFX 100S	Sony a900
HDMI Output	Yes	Yes
Microphone Port	Yes	No
Headphone Port	Yes	No
Wireless	Yes Built-in (802.11 b/g/n + Bluetooth)	No
Remote Control	Supported (no further information)	Yes (Wired or Wireless (Optional))
GPS	No	No
Body & Dimensions	Fujifilm GFX 100S	Sony a900
Enviromentally sealed	Yes	Yes
Battery	Battery Pack	Battery Pack
Battery Details	NP-W235 lithium-ion battery & charger	Lithium-Ion NP-FM500H rechargeable battery & charger
Battery Life (CIPA)	460 shots	880 shots
Width	150 mm	156 mm
Height	104 mm	117 mm
Depth	87 mm	82 mm
Weight	900 gram	895 gram