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OM System OM-5 vs Sony A7S II

Portability
80
Imaging
64
Features
88
Overall
73
OM System OM-5 front
 
Sony Alpha A7S II front
Portability
68
Imaging
61
Features
76
Overall
67

OM System OM-5 vs Sony A7S II Key Specs

OM System OM-5
(Full Review)
  • 20MP - Four Thirds Sensor
  • 3.00" Fully Articulated Display
  • ISO 200 - 25600
  • Sensor based 5-axis Image Stabilization
  • 1/8000s Maximum Shutter
  • 4096 x 2160 video
  • Micro Four Thirds Mount
  • 414g - 125 x 85 x 50mm
  • Released October 2022
  • Replaced the Olympus E-M5 III
Sony A7S II
(Full Review)
  • 12MP - Full frame Sensor
  • 3" Tilting Display
  • ISO 100 - 102400 (Increase to 409600)
  • Sensor based 5-axis Image Stabilization
  • 1/8000s Max Shutter
  • 3840 x 2160 video
  • Sony E Mount
  • 627g - 127 x 96 x 60mm
  • Introduced October 2015
  • Earlier Model is Sony A7S
  • New Model is Sony A7S III
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OM System OM-5 vs Sony A7S II Overview

Below is a extended analysis of the OM System OM-5 versus Sony A7S II, one being a Advanced Mirrorless and the other is a Pro Mirrorless by brands Olympus and Sony. There is a significant difference among the image resolutions of the OM System OM-5 (20MP) and A7S II (12MP) and the OM System OM-5 (Four Thirds) and A7S II (Full frame) posses totally different sensor measurements.

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The OM System OM-5 was manufactured 7 years later than the A7S II and that is a fairly sizable gap as far as camera tech is concerned. Each of the cameras feature the same body design (SLR-style mirrorless).

Before we go right into a in-depth comparison, here is a quick introduction of how the OM System OM-5 matches up against the A7S II for portability, imaging, features and an overall grade.

Photography Glossary
	
	

Reasons to pick OM System OM-5 over the Sony A7S II

 OM System OM-5 A7S II 
IntroducedOctober 2022October 2015More recent by 86 months
Display typeFully ArticulatedTiltingFully Articulating display
Selfie screen Take selfies
Touch friendly display Easily navigate

Reasons to pick Sony A7S II over the OM System OM-5

 A7S II OM System OM-5 
Display resolution1229k1040kSharper display (+189k dot)

Common features in the OM System OM-5 and Sony A7S II

 OM System OM-5 A7S II 
Manual focus More precise focusing
Display size3.00"3"Same display measurements

OM System OM-5 vs Sony A7S II Physical Comparison

When you are intending to lug around your camera often, you will need to factor its weight and measurements. The OM System OM-5 comes with outer dimensions of 125mm x 85mm x 50mm (4.9" x 3.3" x 2.0") having a weight of 414 grams (0.91 lbs) while the Sony A7S II has proportions of 127mm x 96mm x 60mm (5.0" x 3.8" x 2.4") along with a weight of 627 grams (1.38 lbs).

Check out the OM System OM-5 versus Sony A7S II in the all new Camera and Lens Size Comparison Tool. Camera Size Comparison with Lenses

Keep in mind, the weight of an Interchangeable Lens Camera will differ depending on the lens you have at that moment. Following is a front view sizing comparison of the OM System OM-5 against the A7S II.

OM System OM-5 vs Sony A7S II size comparison

Factoring in size and weight, the portability score of the OM System OM-5 and A7S II is 80 and 68 respectively.

OM System OM-5 vs Sony A7S II top view buttons comparison

OM System OM-5 vs Sony A7S II Sensor Comparison

Often, its difficult to envision the gap in sensor measurements only by researching a spec sheet. The visual here will provide you a far better sense of the sensor sizes in the OM System OM-5 and A7S II.

Clearly, both of these cameras come with different resolutions and different sensor measurements. The OM System OM-5 due to its smaller sensor will make shooting shallow DOF more difficult and the OM System OM-5 will result in more detail due to its extra 8MP. Greater resolution will also allow you to crop pics a good deal more aggressively. The younger OM System OM-5 will have an edge in sensor innovation.

OM System OM-5 vs Sony A7S II sensor size comparison

OM System OM-5 vs Sony A7S II Screen and ViewFinder

OM System OM-5 vs Sony A7S II Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

OM System OM-5 Portrait photography info
Sony A7S II Portrait photography info
78
you can focus manually
decent sensor resolution (20MP)
nice sensor size (Four Thirds)
includes face detect focus
supports RAW formats
68
manual focus
large sensor size (Full frame)
includes face detection focus
supports RAW files
MP count low (12MP)
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Street Comparison

Street photography with OM System OM-5
Street photography with Sony A7S II
84
fully articulated screen
image stabilization (Sensor based 5-axis)
nice sensor size (Four Thirds)
supports RAW formats
offers focus via touch
environment proofing
very good high ISO (25,600)
78
has a tilting screen
image stabilization (Sensor based 5-axis)
large sensor size (Full frame)
supports RAW files
weather proof
great high ISO (102,400)
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Sports Comparison

OM System OM-5 as a Sports photography camera
Sony A7S II as a Sports photography camera
76
high shutter speed (1/8,000 seconds)
silent shutter (1/32,000 seconds)
image stabilization (Sensor based 5-axis)
decent sensor resolution (20MP)
nice sensor size (Four Thirds)
includes tracking focus
environment proofing
sensor has phase detect auto focus
bad battery pack (310 shots)
58
high shutter speed (1/8,000 seconds)
image stabilization (Sensor based 5-axis)
large sensor size (Full frame)
includes tracking autofocus
weather proof
very slow continuous shooting (5.0 fps)
MP count low (12MP)
not so great battery pack (370 shots)
no phase detect auto focus
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Travel Comparison

Travel photography with OM System OM-5
Travel photography with Sony A7S II
78
environment proofing
supports bluetooth
offers focus via touch
decent sensor resolution (20MP)
screen is selfie friendly
bad battery pack (310 per charge)
49
weather proof
not so great battery pack (370 CIPA)
MP count low (12 megapixels)
display isn't selfie friendly
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Landscape Comparison

Landscape photography with OM System OM-5
Landscape photography with Sony A7S II
78
you can focus manually
change lenses (Micro Four Thirds mount)
pretty good screen size (3.00 inches)
image stabilization (Sensor based 5-axis)
decent sensor resolution (20MP)
nice sensor size (Four Thirds)
very good high ISO (25,600)
supports RAW formats
environment proofing
bad battery pack (310 shots)
71
manual focus
switch lenses (Sony E mount)
pretty good screen size (3")
image stabilization (Sensor based 5-axis)
large sensor size (Full frame)
great high ISO (102,400)
supports RAW files
weather proof
MP count low (12 megapixels)
not so great battery pack (370 per charge)
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Vlogging Comparison

OM System OM-5 Vlogging factors
Sony A7S II Vlogging factors
84
screen is selfie friendly
has touchscreen
image stabilization (Sensor based 5-axis)
includes face detect focus
high quality video (4096 x 2160 pxls)
includes mic port
35
image stabilization (Sensor based 5-axis)
includes face detection focus
high video quality (3840 x 2160 pixels)
does have external microphone support
display isn't selfie friendly
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OM System OM-5 vs Sony A7S II Specifications

Detailed spec comparison table for OM System OM-5 and Sony A7S II
 OM System OM-5Sony Alpha A7S II
General Information
Manufacturer Olympus Sony
Model OM System OM-5 Sony Alpha A7S II
Type Advanced Mirrorless Pro Mirrorless
Released 2022-10-26 2015-10-12
Physical type SLR-style mirrorless SLR-style mirrorless
Sensor Information
Powered by - Bionz X
Sensor type CMOS CMOS
Sensor size Four Thirds Full frame
Sensor measurements 17.4 x 13mm 35.6 x 23.8mm
Sensor surface area 226.2mm² 847.3mm²
Sensor resolution 20 megapixel 12 megapixel
Anti aliasing filter
Aspect ratio 1:1, 4:3, 3:2 and 16:9 3:2 and 16:9
Highest Possible resolution 5184 x 3888 4240 x 2832
Maximum native ISO 25600 102400
Maximum enhanced ISO - 409600
Lowest native ISO 200 100
RAW support
Lowest enhanced ISO 64 50
Autofocusing
Focus manually
Touch focus
Autofocus continuous
Autofocus single
Tracking autofocus
Autofocus selectice
Autofocus center weighted
Multi area autofocus
Live view autofocus
Face detect focus
Contract detect focus
Phase detect focus
Number of focus points 121 169
Lens
Lens mounting type Micro Four Thirds Sony E
Number of lenses 119 121
Crop factor 2.1 1
Screen
Type of display Fully Articulated Tilting
Display diagonal 3.00 inch 3 inch
Display resolution 1,040 thousand dots 1,229 thousand dots
Selfie friendly
Liveview
Touch function
Viewfinder Information
Viewfinder Electronic Electronic
Viewfinder resolution 2,360 thousand dots 2,359 thousand dots
Viewfinder coverage 100% 100%
Viewfinder magnification 0.68x 0.78x
Features
Min shutter speed 60 seconds 30 seconds
Max shutter speed 1/8000 seconds 1/8000 seconds
Max quiet shutter speed 1/32000 seconds -
Continuous shutter rate 10.0 frames/s 5.0 frames/s
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes Yes
Set white balance
Image stabilization
Inbuilt flash
Flash range no built-in flash no built-in flash
Flash options Auto, redeye, fill, off, redeye slow sync, slow sync, 2nd-curtain slow sync, manual no built-in flash
Hot shoe
Auto exposure bracketing
WB bracketing
Max flash synchronize 1/250 seconds -
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Supported video resolutions 4096 x 2160 @ 24p / 237 Mbps, MOV, H.264, Linear PCM 4K (3840 x 2160 @ 30p/24p [60-100Mbps]), Full HD (1920 x 1080 @ 120p/60p/60i/30p/24p [50-100Mbps]), 720p (30p [16Mbps])
Maximum video resolution 4096x2160 3840x2160
Video format MPEG-4, H.264 MPEG-4, AVCHD, XAVC S
Microphone support
Headphone support
Connectivity
Wireless Built-In Built-In
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environment sealing
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 414 grams (0.91 pounds) 627 grams (1.38 pounds)
Physical dimensions 125 x 85 x 50mm (4.9" x 3.3" x 2.0") 127 x 96 x 60mm (5.0" x 3.8" x 2.4")
DXO scores
DXO Overall score not tested 85
DXO Color Depth score not tested 23.6
DXO Dynamic range score not tested 13.3
DXO Low light score not tested 2993
Other
Battery life 310 images 370 images
Style of battery Battery Pack Battery Pack
Battery model BLS-50 NP-FW50
Self timer Yes (2 or 10 secs, custom) Yes (2 or 10 sec; continuous (3 or 5 exposures))
Time lapse feature With downloadable app
Storage type SD/SDHC/SDXC (UHS-II supported) SD/SDHC/SDXC, Memory Stick Duo/Pro Duo/Pro-HG Duo
Card slots 1 1
Pricing at release $1,200 $2,767