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OM System OM-1 vs Sony A9

Portability
65 Imaging
63 Features
96 Overall
76
OM System OM-1 front
 
Sony Alpha A9 front
Portability
65 Imaging
73 Features
93 Overall
81

OM System OM-1 vs Sony A9 Key Specs

OM System OM-1
(Full Review)
  • 20MP - Four Thirds Sensor
  • 3.00" Fully Articulated Display
  • ISO 200 - 25600 (Push to 102400)
  • Sensor based 5-axis Image Stabilization
  • No Anti-Alias Filter
  • 1/8000s Max Shutter
  • 4096 x 2160 video
  • Micro Four Thirds Mount
  • 599g - 135 x 92 x 73mm
  • Revealed February 2022
Sony A9
(Full Review)
  • 24MP - Full frame Sensor
  • 3" Tilting Display
  • ISO 100 - 51200 (Push to 204800)
  • Sensor based 5-axis Image Stabilization
  • 1/8000s Maximum Shutter
  • 3840 x 2160 video
  • Sony E Mount
  • 673g - 127 x 96 x 63mm
  • Released April 2017
  • Later Model is Sony A9 II
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OM System OM-1 vs Sony A9 Overview

Let's look more in depth at the OM System OM-1 vs Sony A9, both Pro Mirrorless cameras by manufacturers Olympus and Sony. The sensor resolution of the OM System OM-1 (20MP) and the A9 (24MP) is very comparable but the OM System OM-1 (Four Thirds) and A9 (Full frame) posses different sensor sizes.

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The OM System OM-1 was launched 4 years after the A9 which is a fairly big difference as far as camera technology is concerned. The two cameras feature the same body design (SLR-style mirrorless).

Before diving right into a step-by-step comparison, here is a short summary of how the OM System OM-1 scores vs the A9 with regard to portability, imaging, features and an overall score.

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Reasons to pick OM System OM-1 over the Sony A9

		

		

			
 OM System OM-1 A9 
ReleasedFebruary 2022April 2017More modern by 59 months
Display typeFully ArticulatedTiltingFully Articulating display
Display resolution1620k1440kSharper display (+180k dot)
Selfie screen  Take selfies
		

	

	
	

		

		
Reasons to pick Sony A9 over the OM System OM-1

		

		

			
 A9 OM System OM-1 
		

	

	
	

		

		
Common features in the OM System OM-1 and Sony A9

		

		

			
 OM System OM-1 A9 
Manual focus  Dial precise focusing
Display size3.00"3"Same display dimensions
Touch friendly display  Easily navigate
		

	

	

	
	
	
	

	

		

		
OM System OM-1 vs Sony A9 Physical Comparison

		

		

			
For those who are aiming to carry around your camera regularly, you have to think about its weight and volume. The OM System OM-1 has physical measurements of 135mm x 92mm x 73mm (5.3" x 3.6" x 2.9") along with a weight of 599 grams (1.32 lbs) and the Sony A9 has sizing of 127mm x 96mm x 63mm (5.0" x 3.8" x 2.5") having a weight of 673 grams (1.48 lbs).
Analyze the OM System OM-1 vs Sony A9 in our brand new Camera & Lens Size Comparison Tool. Camera Size Comparison with Lenses
Take into account, the weight of an ILC will differ depending on the lens you have at the time. The following is a front view measurements comparison of the OM System OM-1 versus the A9.
OM System OM-1 vs Sony A9 size comparison
Considering dimensions and weight, the portability rating of the OM System OM-1 and A9 is 65 and 65 respectively.
OM System OM-1 vs Sony A9 top view buttons comparison		

	

	
	

		

		
OM System OM-1 vs Sony A9 Sensor Comparison

		

		

			
Normally, it's tough to picture the gap in sensor sizes just by going through specs. The pic below will help give you a stronger sense of the sensor measurements in the OM System OM-1 and A9.
As you can plainly see, each of these cameras come with different megapixels and different sensor sizes. The OM System OM-1 featuring a smaller sensor is going to make getting bokeh more challenging and the Sony A9 will show more detail utilizing its extra 4 Megapixels. Greater resolution will also allow you to crop images a good deal more aggressively. The more recent OM System OM-1 provides an edge when it comes to sensor tech.
	
			OM System OM-1 vs Sony A9 sensor size comparison			
		

	

	
	

		

		
OM System OM-1 vs Sony A9 Screen and ViewFinder

		

		

					

		OM System OM-1 vs Sony A9 Screen and Viewfinder comparison	

	
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Photography Type Scores

		

	

	
Portrait Comparison
 OM System OM-1 as a Portrait photography camera
 Sony A9 as a Portrait photography camera
77
 manual focus
 megapixel count decent (20 megapixels)
 decent sensor size (Four Thirds)
 includes face detect focusing
 delivers RAW files
83
 manual focus
 megapixel count good (24 megapixels)
 sensor size is great (Full frame)
 supports face detect autofocus
 supports RAW files
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Street Comparison
OM System OM-1 Street photography details
Sony A9 Street photography details
77
 screen can move to multiple angles
 has image stabilization (Sensor based 5-axis)
 decent sensor size (Four Thirds)
 delivers RAW files
 includes focus via touch
 weather proofing
 very good high ISO (25,600)
79
 has a tilting screen
 built in image stabilization (Sensor based 5-axis)
 sensor size is great (Full frame)
 supports RAW files
 supports touch focus
 weather sealing
 very good ISO range (51,200)
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Sports Comparison
OM System OM-1 Sports photography advice
Sony A9 Sports photography advice
81
 great max shutter speed (1/8,000 seconds)
 silent shutter (1/32,000 seconds)
 has image stabilization (Sensor based 5-axis)
 megapixel count decent (20 megapixels)
 decent sensor size (Four Thirds)
 includes tracking focus
 weather proofing
 great battery life (520 shots)
 has phase detect AF
86
 maximum shutter speed is high (1/8,000s)
 quiet shutter (1/32,000s)
 high max frames per second (20.0 frames/s)
 built in image stabilization (Sensor based 5-axis)
 megapixel count good (24 megapixels)
 sensor size is great (Full frame)
 supports tracking focus
 weather sealing
 better than average battery pack (650 shots)
 supports phase detect autofocus
Photography Glossary
Travel Comparison
 OM System OM-1 as a Travel photography camera
 Sony A9 as a Travel photography camera
78
 great battery life (520 CIPA)
 weather proofing
 has bluetooth
 includes focus via touch
 megapixel count decent (20MP)
 display is selfie friendly
73
 better than average battery pack (650 shots)
 weather sealing
 supports bluetooth
 supports touch focus
 megapixel count good (24 megapixels)
 display isn't selfie friendly
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Landscape Comparison
OM System OM-1 Landscape photography info
Sony A9 Landscape photography info
81
 manual focus
 swap lenses (Micro Four Thirds mount)
 screen size is decent (3.00 inches)
 has image stabilization (Sensor based 5-axis)
 megapixel count decent (20MP)
 decent sensor size (Four Thirds)
 doesnt have anti-alias filter
 very good high ISO (25,600)
 delivers RAW files
 weather proofing
 great battery life (520 CIPA)
 has double storage slots
85
 manual focus
 interchangeable lenses (Sony E mount)
 nice screen size (3 inch)
 built in image stabilization (Sensor based 5-axis)
 megapixel count good (24MP)
 sensor size is great (Full frame)
 very good ISO range (51,200)
 supports RAW files
 weather sealing
 better than average battery pack (650 CIPA)
 has double storage slots
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Vlogging Comparison
 OM System OM-1 as a Vlogging camera
 Sony A9 as a Vlogging camera
78
 display is selfie friendly
 touchscreen
 has image stabilization (Sensor based 5-axis)
 includes face detect focusing
 video res high (4096 x 2160 pixels)
 has microphone port
36
 touchscreen capability
 built in image stabilization (Sensor based 5-axis)
 supports face detect autofocus
 high res video (3840 x 2160 resolution)
 comes with microphone port
 display isn't selfie friendly
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OM System OM-1 vs Sony A9 Specifications

		

		

					

		
		

			Detailed spec comparison table for OM System OM-1 and Sony A9
 OM System OM-1Sony Alpha A9
General Information
Company Olympus Sony
Model OM System OM-1 Sony Alpha A9
Category Pro Mirrorless Pro Mirrorless
Revealed 2022-02-15 2017-04-19
Body design SLR-style mirrorless SLR-style mirrorless
Sensor Information
Processor - BIONZ X
Sensor type Stacked BSI Live MOS Sensor BSI-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 20MP 24MP
Anti aliasing filter    
Aspect ratio 4:3 3:2 and  16:9
Peak resolution 5184 x 3888 6000 x 4000
Highest native ISO 25600 51200
Highest enhanced ISO 102400 204800
Min native ISO 200 100
RAW files    
Min enhanced ISO 80 50
Autofocusing
Focus manually    
Touch focus    
Continuous autofocus    
Autofocus single    
Autofocus tracking    
Autofocus selectice    
Center weighted autofocus    
Autofocus multi area    
Live view autofocus    
Face detect autofocus    
Contract detect autofocus    
Phase detect autofocus    
Number of focus points 1053 693
Cross focus points 1053 -
Lens
Lens mounting type Micro Four Thirds Sony E
Available lenses 118 121
Crop factor 2.1 1
Screen
Display type Fully Articulated Tilting
Display sizing 3.00 inch 3 inch
Resolution of display 1,620 thousand dot 1,440 thousand dot
Selfie friendly    
Liveview    
Touch operation    
Viewfinder Information
Viewfinder Electronic Electronic
Viewfinder resolution 5,760 thousand dot 3,686 thousand dot
Viewfinder coverage 100% 100%
Viewfinder magnification 0.83x 0.78x
Features
Min shutter speed 60 secs 30 secs
Max shutter speed 1/8000 secs 1/8000 secs
Max quiet shutter speed 1/32000 secs 1/32000 secs
Continuous shutter speed 10.0 frames per sec 20.0 frames per sec
Shutter priority    
Aperture priority    
Manually set exposure    
Exposure compensation Yes Yes
Custom white balance    
Image stabilization    
Built-in flash    
Flash range no built-in flash no built-in flash
Flash options Redeye, Fill-in, Flash Off, Red-eye Slow sync.(1st curtain), Slow sync.(1st curtain), Slow sync.(2nd curtain), Manual Flash off, Autoflash, Fill-flash, Slow Sync., Rear Sync., Red-eye reduction, Wireless, Hi-speed sync
Hot shoe    
AE bracketing    
White balance bracketing    
Max flash sync 1/250 secs -
Exposure
Multisegment    
Average    
Spot    
Partial    
AF area    
Center weighted    
Video features
Highest video resolution 4096x2160 3840x2160
Video file format MPEG-4, H.264, H.265, HEVC MPEG-4, AVCHD, H.264
Microphone jack    
Headphone jack    
Connectivity
Wireless Built-In Built-In
Bluetooth    
NFC    
HDMI    
USB USB 3.1 Gen 1 (5 GBit/sec) USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environment seal    
Water proof    
Dust proof    
Shock proof    
Crush proof    
Freeze proof    
Weight 599 grams (1.32 pounds) 673 grams (1.48 pounds)
Physical dimensions 135 x 92 x 73mm (5.3" x 3.6" x 2.9") 127 x 96 x 63mm (5.0" x 3.8" x 2.5")
DXO scores
DXO Overall score not tested 92
DXO Color Depth score not tested 24.9
DXO Dynamic range score not tested 13.3
DXO Low light score not tested 3517
Other
Battery life 520 photographs 650 photographs
Type of battery Battery Pack Battery Pack
Battery model BLX-1 NP-FZ100
Self timer Yes (2 or 12 secs, custom) Yes (2, 5, 10 secs + continuous)
Time lapse shooting    
Type of storage Dual SD/SDHC/SDXC slots (UHS-II on first slot) Dual SD/SDHC/SDXC slots (UHS-II compatible)
Storage slots Two Two
Pricing at release $2,199 $4,498