Fujifilm X-S20 vs Sony a850

This is a full comparison between the cameras Fujifilm X-S20 and Sony a850. We compare them by looking at the categories you see below.

Manufacturing

Fujifilm X-S20 is manufacturered by Fujifilm but Sony a850 is from Sony. Both Fujifilm and Sony are well known brands though.

Fujifilm X-S20 were released 2023 and Sony a850 was released 2009. That is a 14 years difference. In tech, this period can be of interest since technology is always improving, etc.

Camera Released
Fujifilm X-S20 2023
Sony a850 2009

Type of camera

Fujifilm X-S20 is a Mirrorless camera while Sony a850 is a DSLR camera. More information about their differences will come soon.

Sensors / crop factor

These cameras have different sensors. Fujifilm X-S20 has a "Fujifilm APS-C"-sensor while Sony a850 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.

Camera Focal length, 50mm f/1.8 **
Fujifilm X-S20 75 mm
Fujifilm sensor
Crop factor/focal length multiplier by * 1.5
Sony a850 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:

Resolution

Fujifilm X-S20 has a 26 MP (Megapixels) resolution while Sony a850 has 25 MP. If we break down this in more detail this is the data behind the numbers:

Camera Megapixels
Fujifilm X-S20 26 MP
25958400 pixels
6240 x 4160
Sony a850 25 MP
24385536 pixels
6048 x 4032

Fujifilm X-S20 has a 6 % larger resolution than Sony a850. 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 X-S20 has a larger ISO-range than Sony a850. Fujifilm X-S20 has an ISO range that stretches from 160 to 12800 while Sony a850 has 200 to 3200.

Camera ISO Range
Fujifilm X-S20 160-12800
Sony a850 200-3200

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 X-S20
Lens compatibility chart for Sony a850

Pictures per second

Depending on what you are shooting the FPS, or frames/pictures per second, can definitely be of interest. Fujifilm X-S20 can shoot up to 8 pictures per seconds and Sony a850 can shoot up to 3 pictures per seconds.

Camera FPS (Frames per second)
Fujifilm X-S20 8
Sony a850 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 Fujifilm X-S20. Unfortunately Sony a850 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.

Sony a850 weighs 895 gr (equal to 1.97 lb) which is 82% heavier than Fujifilm X-S20 and its 491 gr (or 1.08 lb).

Camera Weight
Fujifilm X-S20 491 gr
1.08 lb
Sony a850 895 gr
1.97 lb

Fujifilm X-S20 vs Sony a850 Specs

Below you will find the complete and detailed technical specs for both Fujifilm X-S20 and Sony a850, 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 X-S20
Sony a850
Name Fujifilm X-S20 Sony a850
Manufacturer Fujifilm Sony
Release Date and Price
Fujifilm X-S20
Sony a850
Release Year 2023 2009
Release Date 2023-05-24 2009-08-27
MSRP 1299 USD 1999 USD
Buy it today
Camera Type
Fujifilm X-S20
Sony a850
Camera Type Mirrorless DSLR
Sensor
Fujifilm X-S20
Sony a850
Sensor Size APS-C (approx 23.5 x 15.6 mm) Full Frame (approx 36 x 24 mm)
Sensor Type BSI-CMOS CMOS
Resolution 6240 x 4160 pixels 6048 x 4032 pixels
Megapixels 26 MP 25 MP
Image Processor X-Processor 5 Bionz
Image
Fujifilm X-S20
Sony a850
ISO Range 160 - 12800 200 - 3200
White Balance Presets 7 7
Custom White Balance Yes Yes
Image Stabilization Yes
(Sensor-Shift)
Yes
(Sensor-Shift)
Image Stabilization CIPA Rating 7 stops 0 stops
Uncompressed format RAW RAW
Optics & Focus
Fujifilm X-S20
Sony a850
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 X

See Compatible Lenses
Sony A

See Compatible Lenses
Focal Length Multiplier APS-C Sensor (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
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 X-S20
Sony a850
Articulated LCD Fully articulated Fixed
Screen size 3” 3”
Screen dots 1840000 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% 98%
Viewfinder Magnification 0.93× (0.62× 35mm equiv.) 0.74×
Viewfinder Resolution 2360000 N/A
Photography features
Fujifilm X-S20
Sony a850
Frames per second 8 fps 3 fps
Minimum Shutter Speed 900 seconds 30 seconds
Maximum Shutter Speed 1/4000 seconds 1/8000 seconds
Built-in Flash Yes No
Built-in Flash Range 7 meters 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 X-S20
Sony a850
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 X-S20
Sony a850
Memory Card SD/SDHC
Compact Flash
Memory Stick Pro Duo
Connectivity
Fujifilm X-S20
Sony a850
HDMI Output Yes Yes
Microphone Port Yes No
Headphone Port Yes No
Wireless Yes
Built-in (802.11b/g/n + Bluetooth)
No
Remote Control Yes (via smartphone and wired remote) Yes (Wired or Wireless (Optional))
GPS No No
Body & Dimensions
Fujifilm X-S20
Sony a850
Enviromentally sealed No No
Battery Battery Pack Battery Pack
Battery Details NP-W235
Lithium-Ion NP-FM500H rechargeable battery & charger
Battery Life (CIPA) 750 shots 880 shots
Width 127 mm 156 mm
Height 85 mm 117 mm
Depth 65 mm 82 mm
Weight 491 gram 895 gram