Olympus OM-D E-M10 Mark IV vs. Fujifilm X-S20 - Camera Comparison

Comparison of the Olympus OM-D E-M10 Mark IV and the Fujifilm X-S20

Olympus OM-D E-M10 Mark IV
63 points
Fujifilm X-S20
77 points
Olympus OM-D E-M10 Mark IV
Olympus OM-D E-M10 Mark IV ✭ Camspex.com
85 mm
122 mm
BODY
Fujifilm X-S20
Fujifilm X-S20 ✭ Camspex.com
85 mm
128 mm
2020
YEARYear of announcement
2023
Metal with plastic
BODY MATERIAL
Magnesium alloy
Not
weather
sealed
WEATHER SEALING
Not
weather
sealed
Micro Four Thirds
LENS MOUNT
Fujifilm X
n/a
SHUTTER LIFEThe shutter durability as rated by the manufacturer.
n/a
383 g
0.84 lb
122 x 85 x 49 mm
4.8 x 3.3 x 1.9 in.
DIMENSIONS
& WEIGHTLength x Height x Width and the Weight incl. batteries and memory card
DIMENS.
& WEIGHTLength x Height x Width and the Weight incl. batteries and memory card
128 x 85 x 65 mm
5 x 3.3 x 2.6 in.
491 g
1.08 lb
Olympus OM-D E-M10 Mark IV
Fujifilm X-S20
20.3 MP
NMOS Four Thirds Sensor
SENSOR The number of effective megapixels (MP). Sensor manufacturer (if known) and sensor type.
SENSOR Sensor manufacturer (if known) and sensor type.
26.1 MP
X-Trans BSI CMOS 4 APS-C Sensor
20.3 MP
EFFECTIVE MEGAPIX The number of effective megapixels (MP).
26.1 MP
17.3 x 13.0 mm
SENSOR SIZE
23.5 x 15.6 mm
5184 x 3888 pixels
MAX. RESOLUTIONMaximum still image resolution
MAX. RESOLUT.Maximum still image resolution
6240 x 4160 pixels
2x
CROP FACTORA 50mm lens on a camera with a crop factor of 1.5x would behave like a 75mm lens on a full-frame camera with a crop factor of 1x (50mm x 1.5 = 75mm)
1.5x
Bayer array
COLOR FILTER
6x6 array
3.4 μm
PIXEL PITCHThe center-to-center distance between two pixels (photosites) on a sensor. The larger the photosites, the more light they can capture and the lower is the level of visible "noise" in captured images.
3.77 μm
None
LOW-PASS FILTERA low-pass filter blurs fine details of an image to eliminate the moiré and the color artifacts of finely patterned structures. Without a low-pass filter images will appear sharper, but there is also a risk of moiré occurring in certain scenes.
None
4:3
NATIVE
ASPECT RATIOThe width to height ratio of the "straight out of the camera" images. However, most modern digital cameras are capable of producing images in various aspect ratios.
ASPECT RATIOThe width to height ratio of the "straight out of the camera" images. However, most modern digital cameras are capable of producing images in various aspect ratios.
3:2
Olympus OM-D E-M10 Mark IV
DXOMARK
SENSOR
SCOREAnalysis of the camera image quality by dxomark.com
Fujifilm X-S20
 
Not tested
OVERALL SCOREDXOMARK Sensor Overall Score shows a camera's sensor quality in terms of noise, ability to render high contrast, formation of colored noise, ability to shoot in low light.
Not tested
 
 
Not tested
COLOR DEPTHThe color depth performance (DXOMARK Portrait Score) in bits
Not tested
 
 
Not tested
DYNAMIC RANGEThe maximum dynamic range performance (DXOMARK Landscape Score) in exposure value (EV)
Not tested
 
 
Not tested
LOW-LIGHT ISOThe low-light sensitivity performance (DXOMARK Sports Score) in ISO sensitivity value
Not tested
 
Olympus OM-D E-M10 Mark IV
Fujifilm X-S20
COVERAGE:
100 %
REAL SIZE:
0.62
VIEW­FINDERThe viewfinder frame COVERAGE in percent and the real viewfinder SIZE (VF magnification corrected by the crop factor of a camera — this way cameras with different sensor sizes can be compared).
COVERAGE:
100 %
REAL SIZE:
0.62
Electronic 
 (2 359 296 dot OLED)
VF TYPE
Electronic 
 (2 359 296 dot OLED)
Articulated
 1 036 800 dot LCD
REAR SCREEN
Articulated 
1 840 000 dot LCD
3 inch
SCREEN SIZE
3 inch
LIVE VIEW & TOUCH SCREEN
No top LCD panel
TOP LCD PANELLCD panel on top of the camera which provides information about the current camera settings.
No top LCD panel
Olympus OM-D E-M10 Mark IV
Fujifilm X-S20
Contrast detection
AUTOFOCUS SYSTEM
AF SYSTEM
Hybrid detection with Focus Bracketing
FAST AF
AUTOFOCUS MODULE
AF MODULE
121
121
FOCUS POINTSAutofocus points
as shown in the figures below:
° linear sensors
° cross-type sensors
° dual cross-type sensors
contrast autofocus areas
425 (phase)  
425 (contrast)
425
 (phase)  
425
 (contrast)
0
CROSS-TYPE FOCUS POINTS
CROSS-TYPE FP
0
camspex.com — Autofocus system — Olympus OM-D E-M10 Mark IV
No data
EV

100

The minimum exposure value of the AF working range (at 23°C and ISO 100). The smaller this value, the less light is needed for normal autofocus operation.
-7
camspex.com — Autofocus system — Fujifilm X-S20
63 %
AF COVERAGEFrame coverage by AF sensors in percent.
100 %
None
IN-BODY
AF MOTORAn in-body AF motor gives the ability to auto-focus with older lenses which don't have their own motors.
None
5-axis sensor shift
IN-BODY IMAGE STABILIZATION
IMAGE STABILIZ.
5-axis sensor shift
Olympus OM-D E-M10 Mark IV
Fujifilm X-S20
Dual TruePic VIII
IMAGE
PROCESSOR
X-Processor 5
12 bit RAW, JPEG
OUTPUT FORMATS
14 bit RAW, 10 bit HEIF, TIFF, JPEG
Auto, 100 - 25600
ISO SEN­SITIVITY
Auto, 160 - 12800
(can be extended to ISO 80, 100, 125, 25600, 51200)
8.7
fps
CONTINUOUS DRIVEMaximum frames per second (fps) in continuous drive mode when using the mechanical shutter.
CONT. DRIVEMaximum frames per second (fps) in continuous drive mode when using the mechanical shutter.
8
fps
Unlimited JPEG shots
 42 RAW shots
MAX. BURSTMaximum number of shots in high-speed continuous drive mode until the buffer is full.
1000 JPEG shots
 35 RAW shots
2160p @ 30 fps (4K)
MAX. VIDEO RESOLUTION
VIDEO
4160p @ 30 fps (6K)
-5/+5 EV  (in 1/3 EV steps)
EXPOSURE COMPENSATION
EXPOSURE COMPENS.
-5/+5 EV  (in 1/3 EV steps)
Bulb,
 60 sec → 1/4000 sec
SHUTTER SPEED Maximum and minimum possible exposure time in seconds.
Bulb, 
30 sec → 1/4000 sec
Olympus OM-D E-M10 Mark IV
Fujifilm X-S20

X-SYNC:
1/250
GUIDE
NUMBER:

GN:
6
BUILT-IN FLASH
GUIDE
NUMBER:

GN:
5

X-SYNC:
1/180
Yes
HOT SHOE
Yes
USB 2.0 (480 Mbit/sec)
USB
USB 3.2 (10 Gbit/sec)
HDMI
CONNECTIONS
CONNECT.
Microphone port, Headphone port, HDMI
BUILT-IN
DEVICES
SD, SDHC, SDXC (UHS-I/II compatible)
STORAGE TYPES
SD, SDHC, SDXC (UHS-I/II compatible)
1
CARD SLOTS
1
360
shots
BATTERY LIFEMaximum number of images that can be shot per single battery charge (according to CIPA).
750
shots

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