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OM System OM-5 vs Sony A7S

Portability
80
Imaging
63
Features
88
Overall
73
OM System OM-5 front
 
Sony Alpha A7S front
Portability
77
Imaging
59
Features
73
Overall
64

OM System OM-5 vs Sony A7S Key Specs

OM System OM-5
(Full Review)
  • 20MP - Four Thirds Sensor
  • 3.00" Fully Articulated Screen
  • 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
  • Revealed October 2022
  • Replaced the Olympus E-M5 III
Sony A7S
(Full Review)
  • 12MP - Full frame Sensor
  • 3" Tilting Display
  • ISO 100 - 409600
  • 1/8000s Maximum Shutter
  • 3840 x 2160 video
  • Sony E Mount
  • 489g - 127 x 94 x 48mm
  • Introduced April 2014
  • Replacement is Sony A7S II
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OM System OM-5 vs Sony A7S Overview

Its time to examine more closely at the OM System OM-5 versus Sony A7S, former is a Advanced Mirrorless while the other is a Pro Mirrorless by brands Olympus and Sony. There exists a considerable gap between the resolutions of the OM System OM-5 (20MP) and A7S (12MP) and the OM System OM-5 (Four Thirds) and A7S (Full frame) enjoy totally different sensor measurements.

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The OM System OM-5 was announced 8 years after the A7S which is quite a large difference as far as technology is concerned. Both the cameras offer the identical body type (SLR-style mirrorless).

Before we go straight into a in depth comparison, below is a quick view of how the OM System OM-5 scores vs the A7S in terms of portability, imaging, features and an overall mark.

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

 OM System OM-5 A7S 
IntroducedOctober 2022April 2014Newer by 105 months
Display typeFully ArticulatedTiltingFully Articulating display
Selfie screen Easy selfies
Touch display Easily navigate

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

 A7S OM System OM-5 
Display resolution1230k1040kClearer display (+190k dot)

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

 OM System OM-5 A7S 
Focus manually Dial accurate focus
Display sizing3.00"3"Equivalent display measurements

OM System OM-5 vs Sony A7S Physical Comparison

For anybody who is intending to travel with your camera, you'll have to factor in its weight and size. The OM System OM-5 enjoys physical measurements of 125mm x 85mm x 50mm (4.9" x 3.3" x 2.0") accompanied by a weight of 414 grams (0.91 lbs) whilst the Sony A7S has specifications of 127mm x 94mm x 48mm (5.0" x 3.7" x 1.9") with a weight of 489 grams (1.08 lbs).

Take a look at the OM System OM-5 versus Sony A7S in our newest Camera plus Lens Size Comparison Tool. Camera Size Comparison with Lenses

Take into consideration, the weight of an ILC will vary based on the lens you have attached during that time. The following is the front view size comparison of the OM System OM-5 compared to the A7S.

OM System OM-5 vs Sony A7S size comparison

Considering dimensions and weight, the portability grade of the OM System OM-5 and A7S is 80 and 77 respectively.

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

OM System OM-5 vs Sony A7S Sensor Comparison

Sometimes, it can be tough to see the gap between sensor dimensions merely by looking at specifications. The picture below should provide you a far better sense of the sensor measurements in the OM System OM-5 and A7S.

Plainly, both of the cameras enjoy different megapixels and different sensor dimensions. The OM System OM-5 with its tinier sensor will make shooting bokeh trickier and the OM System OM-5 will give more detail with its extra 8 Megapixels. Greater resolution will also make it easier to crop images far more aggressively. The fresher OM System OM-5 will have an edge when it comes to sensor technology.

OM System OM-5 vs Sony A7S sensor size comparison

OM System OM-5 vs Sony A7S Screen and ViewFinder

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

Portrait Comparison

OM System OM-5 Portrait photography features
Sony A7S Portrait photography features
77
has manual focus
resolution is good (20 megapixels)
sensor size is nice (Four Thirds)
provides face detect focusing
saves RAW files
67
focusing manually
sensor size is large (Full frame)
comes with face detect focus
exports RAW files
sensor resolution not great (12 megapixels)
Photography Glossary

Street Comparison

Street photography with OM System OM-5
Street photography with Sony A7S
84
screen articulates fully
built in image stabilization (Sensor based 5-axis)
sensor size is nice (Four Thirds)
saves RAW files
features touch to focus
weather proofing
good high ISO (25,600)
76
tilting screen
sensor size is large (Full frame)
exports RAW files
environment sealing
lighter than competition in class (489g)
good high ISO (409,600)
lack of image stabilization
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Sports Comparison

OM System OM-5 Sports photography features
Sony A7S Sports photography features
75
max shutter speed is good (1/8,000s)
quiet mode (1/32,000s)
built in image stabilization (Sensor based 5-axis)
resolution is good (20MP)
sensor size is nice (Four Thirds)
provides tracking focus
weather proofing
supports phase detect AF
bad battery (310 CIPA)
51
max shutter speed is good (1/8,000s)
sensor size is large (Full frame)
comes with tracking focus
environment sealing
continuous shooting slow (5.0 fps)
lack of image stabilization
sensor resolution not great (12 megapixels)
terrible battery power (360 shots)
does not have phase detect auto focus
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Travel Comparison

OM System OM-5 Travel photography factors
Sony A7S Travel photography factors
77
weather proofing
connects via bluetooth
features touch to focus
resolution is good (20 megapixels)
selfie friendly screen
bad battery (310 per charge)
58
lighter than competition in class (489 grams)
environment sealing
terrible battery power (360 shots)
sensor resolution not great (12MP)
screen isn't selfie friendly
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Landscape Comparison

Landscape photography with OM System OM-5
Landscape photography with Sony A7S
78
has manual focus
interchangeable lenses (Micro Four Thirds mount)
nice screen size (3.00")
built in image stabilization (Sensor based 5-axis)
resolution is good (20MP)
sensor size is nice (Four Thirds)
good high ISO (25,600)
saves RAW files
weather proofing
bad battery (310 CIPA)
66
focusing manually
swap lenses (Sony E mount)
screen size is good (3 inch)
sensor size is large (Full frame)
good high ISO (409,600)
exports RAW files
environment sealing
lack of image stabilization
sensor resolution not great (12MP)
terrible battery power (360 shots)
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Vlogging Comparison

OM System OM-5 Vlogging advice
Sony A7S Vlogging advice
84
selfie friendly screen
touchscreen
built in image stabilization (Sensor based 5-axis)
provides face detect focusing
high res video (4096 x 2160 pxls)
comes with mic jack
34
comes with face detect focus
high res video (3840 x 2160 pixels)
has mic jack
lighter than competition in class (489g)
screen isn't selfie friendly
lack of image stabilization
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OM System OM-5 vs Sony A7S Specifications

Detailed spec comparison table for OM System OM-5 and Sony A7S
 OM System OM-5Sony Alpha A7S
General Information
Company Olympus Sony
Model OM System OM-5 Sony Alpha A7S
Type Advanced Mirrorless Pro Mirrorless
Revealed 2022-10-26 2014-04-06
Body design SLR-style mirrorless SLR-style mirrorless
Sensor Information
Processor Chip - Bionz X
Sensor type CMOS CMOS
Sensor size Four Thirds Full frame
Sensor dimensions 17.4 x 13mm 35.8 x 23.9mm
Sensor surface area 226.2mm² 855.6mm²
Sensor resolution 20MP 12MP
Anti aliasing filter
Aspect ratio 1:1, 4:3, 3:2 and 16:9 3:2 and 16:9
Highest resolution 5184 x 3888 4240 x 2832
Highest native ISO 25600 409600
Min native ISO 200 100
RAW files
Min boosted ISO 64 -
Autofocusing
Focus manually
Touch to focus
Continuous autofocus
Single autofocus
Autofocus tracking
Selective autofocus
Center weighted autofocus
Autofocus multi area
Autofocus live view
Face detection autofocus
Contract detection autofocus
Phase detection autofocus
Number of focus points 121 25
Lens
Lens mounting type Micro Four Thirds Sony E
Total lenses 119 121
Focal length multiplier 2.1 1
Screen
Range of screen Fully Articulated Tilting
Screen sizing 3.00 inches 3 inches
Resolution of screen 1,040k dot 1,230k dot
Selfie friendly
Liveview
Touch capability
Viewfinder Information
Viewfinder type Electronic Electronic
Viewfinder resolution 2,360k dot 2,359k dot
Viewfinder coverage 100 percent 100 percent
Viewfinder magnification 0.68x 0.71x
Features
Lowest shutter speed 60s 30s
Highest shutter speed 1/8000s 1/8000s
Highest silent shutter speed 1/32000s -
Continuous shooting speed 10.0 frames per second 5.0 frames per second
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes Yes
Change white balance
Image stabilization
Integrated 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
External flash
AE bracketing
White balance bracketing
Highest flash sync 1/250s -
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Supported video resolutions 4096 x 2160 @ 24p / 237 Mbps, MOV, H.264, Linear PCM 3840 x 2160, XAVC S 1080 60p(50Mbps), 30p (50Mbps), 24p (50Mbps). 720 120p (50Mbps). AVCHD 60p (28Mbps), 60i (24Mbps/17Mbps), 24p (24Mbps/17Mbps)
Highest video resolution 4096x2160 3840x2160
Video format MPEG-4, H.264 MPEG-4, AVCHD, XAVC
Mic input
Headphone input
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
Environmental seal
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 414g (0.91 lb) 489g (1.08 lb)
Dimensions 125 x 85 x 50mm (4.9" x 3.3" x 2.0") 127 x 94 x 48mm (5.0" x 3.7" x 1.9")
DXO scores
DXO All around score not tested 87
DXO Color Depth score not tested 23.9
DXO Dynamic range score not tested 13.2
DXO Low light score not tested 3702
Other
Battery life 310 shots 360 shots
Form 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 media SD/SDHC/SDXC (UHS-II supported) SD/SDHC/SDXC, Memory Stick Duo/Pro Duo/Pro-HG Duo
Storage slots Single Single
Launch cost $1,200 $1,998