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Olympus E-M1 III vs Pentax Q-S1

Portability
67 Imaging
62 Features
96 Overall
75
Olympus OM-D E-M1 Mark III front
 
Pentax Q-S1 front
Portability
92 Imaging
38 Features
54 Overall
44

Olympus E-M1 III vs Pentax Q-S1 Key Specs

Olympus E-M1 III
(Full Review)
  • 20MP - Four Thirds Sensor
  • 3" Fully Articulated Screen
  • ISO 200 - 25600
  • Sensor based 5-axis Image Stabilization
  • No Anti-Alias Filter
  • 1/8000s Maximum Shutter
  • 4096 x 2160 video
  • Micro Four Thirds Mount
  • 580g - 134 x 91 x 69mm
  • Released February 2020
  • Older Model is Olympus E-M1 II
Pentax Q-S1
(Full Review)
  • 12MP - 1/1.7" Sensor
  • 3" Fixed Display
  • ISO 100 - 12800
  • Sensor based Image Stabilization
  • 1/8000s Maximum Shutter
  • 1920 x 1080 video
  • Pentax Q Mount
  • 203g - 105 x 58 x 34mm
  • Revealed August 2014
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Olympus E-M1 III vs Pentax Q-S1 Overview

Lets take a deeper look at the Olympus E-M1 III versus Pentax Q-S1, former is a Pro Mirrorless while the other is a Entry-Level Mirrorless by competitors Olympus and Pentax. There is a considerable difference between the sensor resolutions of the E-M1 III (20MP) and Q-S1 (12MP) and the E-M1 III (Four Thirds) and Q-S1 (1/1.7") come with totally different sensor sizes.

Photography Glossary

The E-M1 III was introduced 5 years after the Q-S1 which is quite a large difference as far as tech is concerned. Each of the cameras offer different body type with the Olympus E-M1 III being a SLR-style mirrorless camera and the Pentax Q-S1 being a Rangefinder-style mirrorless camera.

Before diving through a in-depth comparison, below is a brief highlight of how the E-M1 III grades against the Q-S1 in relation to portability, imaging, features and an overall score.

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Reasons to pick Olympus E-M1 III over the Pentax Q-S1

		

		

			
 E-M1 III Q-S1 
RevealedFebruary 2020August 2014More modern by 68 months
Display typeFully ArticulatedFixed Fully Articulating display
Display resolution1037k460kClearer display (+577k dot)
Selfie screen  Easy selfies
Touch display  Easily navigate
		

	

	
	

		

		
Reasons to pick Pentax Q-S1 over the Olympus E-M1 III

		

		

			
 Q-S1 E-M1 III 
		

	

	
	

		

		
Common features in the Olympus E-M1 III and Pentax Q-S1

		

		

			
 E-M1 III Q-S1 
Focus manually  More accurate focus
Display sizing3"3"Equivalent display dimensions
		

	

	

	
	
	
	

	

		

		
Olympus E-M1 III vs Pentax Q-S1 Physical Comparison

		

		

			
When you are aiming to carry around your camera frequently, you will want to factor in its weight and measurements. The Olympus E-M1 III provides outer dimensions of 134mm x 91mm x 69mm (5.3" x 3.6" x 2.7") having a weight of 580 grams (1.28 lbs) whilst the Pentax Q-S1 has proportions of 105mm x 58mm x 34mm (4.1" x 2.3" x 1.3") along with a weight of 203 grams (0.45 lbs).
Examine the Olympus E-M1 III versus Pentax Q-S1 in our brand new Camera plus Lens Size Comparison Tool. Camera Size Comparison with Lenses
Take into consideration, the weight of an ILC will change based on the lens you use during that time. Underneath is the front view overall size comparison of the E-M1 III vs the Q-S1.
Olympus E-M1 III vs Pentax Q-S1 size comparison
Looking at size and weight, the portability score of the E-M1 III and Q-S1 is 67 and 92 respectively.
Olympus E-M1 III vs Pentax Q-S1 top view buttons comparison		

	

	
	

		

		
Olympus E-M1 III vs Pentax Q-S1 Sensor Comparison

		

		

			
In many cases, it is very hard to visualise the gap between sensor sizes merely by reading through specifications. The pic here might offer you a far better sense of the sensor dimensions in the E-M1 III and Q-S1.
To sum up, both of these cameras enjoy different resolutions and different sensor sizes. The E-M1 III with its larger sensor will make getting shallower DOF simpler and the Olympus E-M1 III will give you greater detail using its extra 8 Megapixels. Greater resolution will also allow you to crop photos far more aggressively. The younger E-M1 III is going to have an advantage with regard to sensor innovation.
	
			Olympus E-M1 III vs Pentax Q-S1 sensor size comparison			
		

	

	
	

		

		
Olympus E-M1 III vs Pentax Q-S1 Screen and ViewFinder

		

		

					

		Olympus E-M1 III vs Pentax Q-S1 Screen and Viewfinder comparison	

	
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Photography Type Scores

		

	

	
Portrait Comparison
Olympus E-M1 III Portrait photography advice
Pentax Q-S1 Portrait photography advice
77
 manual focus
 good MP (20 megapixels)
 sensor size is decent (Four Thirds)
 features face detection focusing
 exports RAW formats
46
 focusing manually
 comes with face detect autofocus
 supports RAW formats
 megapixel count low (12MP)
 very small sensor size (1/1.7")
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Street Comparison
 Olympus E-M1 III as a Street photography camera
 Pentax Q-S1 as a Street photography camera
78
 screen can move to multiple angles
 has image stabilization (Sensor based 5-axis)
 sensor size is decent (Four Thirds)
 exports RAW formats
 includes focus via touch
 weather proofing
 very good ISO range (25,600)
69
 has image stabilization (Sensor based)
 supports RAW formats
 lighter than competition in class (203g)
 no moving screen
 very small sensor size (1/1.7")
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Sports Comparison
Sports photography with Olympus E-M1 III
Sports photography with Pentax Q-S1
81
 max shutter speed is good (1/8,000 seconds)
 quiet shutter (1/32,000 seconds)
 fast shooting (60.0 frames/s)
 has image stabilization (Sensor based 5-axis)
 good MP (20MP)
 sensor size is decent (Four Thirds)
 features tracking autofocus
 weather proofing
 has phase detect AF
37
 max shutter speed is good (1/8,000 seconds)
 has image stabilization (Sensor based)
 comes with tracking focus
 very slow continuous shooting (5.0 fps)
 megapixel count low (12MP)
 very small sensor size (1/1.7")
 bad battery pack (250 shots)
 doesn't have phase detect autofocus
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Travel Comparison
Olympus E-M1 III Travel photography highlights
Pentax Q-S1 Travel photography highlights
79
 weather proofing
 connects via bluetooth
 includes focus via touch
 good MP (20 megapixels)
 selfie friendly display
60
 lighter than competition in class (203 grams)
 built-in flash
 bad battery pack (250 per charge)
 megapixel count low (12 megapixels)
 screen is not selfie friendly
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Landscape Comparison
Olympus E-M1 III Landscape photography information
Pentax Q-S1 Landscape photography information
81
 manual focus
 switch lenses (Micro Four Thirds mount)
 screen size is good (3")
 has image stabilization (Sensor based 5-axis)
 good MP (20MP)
 sensor size is decent (Four Thirds)
 no anti aliasing filter
 very good ISO range (25,600)
 exports RAW formats
 weather proofing
 has double storage slots
55
 focusing manually
 swap lenses (Pentax Q mount)
 screen size is good (3 inches)
 has image stabilization (Sensor based)
 supports RAW formats
 megapixel count low (12 megapixels)
 very small sensor size (1/1.7")
 bad battery pack (250 shots)
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Vlogging Comparison
Vlogging with Olympus E-M1 III
Vlogging with Pentax Q-S1
79
 selfie friendly display
 has touchscreen
 has image stabilization (Sensor based 5-axis)
 features face detection focusing
 video res high (4096 x 2160 pixels)
 has external mic port
35
 has image stabilization (Sensor based)
 comes with face detect autofocus
 video resolution high (1920 x 1080 pixels)
 lighter than competition in class (203g)
 screen is not selfie friendly
 doesn't have microphone jack
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Olympus E-M1 III vs Pentax Q-S1 Specifications

		

		

					

		
		

			Detailed spec comparison table for Olympus E-M1 III and Pentax Q-S1
 Olympus OM-D E-M1 Mark IIIPentax Q-S1
General Information
Brand Olympus Pentax
Model type Olympus OM-D E-M1 Mark III Pentax Q-S1
Type Pro Mirrorless Entry-Level Mirrorless
Released 2020-02-11 2014-08-04
Body design SLR-style mirrorless Rangefinder-style mirrorless
Sensor Information
Processor TruePic IX Q Engine
Sensor type CMOS BSI-CMOS
Sensor size Four Thirds 1/1.7"
Sensor measurements 17.4 x 13mm 7.44 x 5.58mm
Sensor area 226.2mm² 41.5mm²
Sensor resolution 20MP 12MP
Anti alias filter    
Aspect ratio 4:3 1:1, 4:3, 3:2 and  16:9
Max resolution 5184 x 3888 4000 x 3000
Max native ISO 25600 12800
Minimum native ISO 200 100
RAW support    
Minimum enhanced ISO 64 -
Autofocusing
Focus manually    
Touch to focus    
AF continuous    
Single AF    
AF tracking    
Selective AF    
AF center weighted    
Multi area AF    
AF live view    
Face detection AF    
Contract detection AF    
Phase detection AF    
Total focus points 121 -
Cross type focus points 121 -
Lens
Lens support Micro Four Thirds Pentax Q
Available lenses 107 8
Focal length multiplier 2.1 4.8
Screen
Screen type Fully Articulated Fixed Type
Screen size 3 inch 3 inch
Resolution of screen 1,037k dot 460k dot
Selfie friendly    
Liveview    
Touch operation    
Viewfinder Information
Viewfinder type Electronic None
Viewfinder resolution 2,360k dot -
Viewfinder coverage 100 percent -
Viewfinder magnification 0.74x -
Features
Min shutter speed 60 seconds 30 seconds
Max shutter speed 1/8000 seconds 1/8000 seconds
Max silent shutter speed 1/32000 seconds -
Continuous shutter speed 60.0 frames per second 5.0 frames per second
Shutter priority    
Aperture priority    
Manual exposure    
Exposure compensation Yes Yes
Set WB    
Image stabilization    
Integrated flash    
Flash distance no built-in flash 4.90 m (at ISO 100)
Flash settings Redeye, Fill-in, Flash Off, Red-eye Slow sync.(1st curtain), Slow sync.(1st curtain), Slow sync.(2nd curtain), Manual Auto, redeye reduction, slow sync, trailing curtain sync
External flash    
AE bracketing    
WB bracketing    
Max flash sync 1/250 seconds -
Exposure
Multisegment exposure    
Average exposure    
Spot exposure    
Partial exposure    
AF area exposure    
Center weighted exposure    
Video features
Video resolutions 4096 x 2160 @ 24p / 237 Mbps, MOV, H.264, Linear PCM3840 x 2160 @ 30p / 102 Mbps, MOV, H.264, Linear PCM3840 x 2160 @ 25p / 102 Mbps, MOV, H.264, Linear PCM3840 x 2160 @ 23.98p / 102 Mbps, MOV, H.264, Linear PCM1920 x 1080 @ 60p, MOV, H.264, Linear PCM1920 x 1080 @ 50p, MOV, H.264, Linear PCM1920 x 1080 @ 30p, MOV, H.264, Linear PCM1920 x 1080 @ 25p, MOV, H.264, Linear PCM1920 x 1080 @ 23.98p, MOV, H.264, Linear PCM 1920 x 1080 (30,25, 24p), 1280 x 720 (30, 25, 24p), 640 x 480 (30, 25, 24p)
Max video resolution 4096x2160 1920x1080
Video format MPEG-4, H.264 MPEG-4, H.264
Microphone input    
Headphone input    
Connectivity
Wireless Built-In None
Bluetooth    
NFC    
HDMI    
USB USB 3.1 Gen 1 (5 GBit/sec) USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environmental seal    
Water proofing    
Dust proofing    
Shock proofing    
Crush proofing    
Freeze proofing    
Weight 580 grams (1.28 lbs) 203 grams (0.45 lbs)
Dimensions 134 x 91 x 69mm (5.3" x 3.6" x 2.7") 105 x 58 x 34mm (4.1" x 2.3" x 1.3")
DXO scores
DXO Overall rating not tested not tested
DXO Color Depth rating not tested not tested
DXO Dynamic range rating not tested not tested
DXO Low light rating not tested not tested
Other
Battery life 420 photographs 250 photographs
Battery format Battery Pack Battery Pack
Battery ID BLH-1 D-LI68
Self timer Yes (2 or 12 secs, custom) Yes (2 or 12 sec)
Time lapse feature    
Type of storage Dual SD/SDHC/SDXC slots (UHS-II on first slot) SD/SDHC/SDXC card
Storage slots Two Single
Launch pricing $1,800 $250