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Olympus E-M1 III vs Pentax WG-2

Portability
67
Imaging
62
Features
96
Overall
75
Olympus OM-D E-M1 Mark III front
 
Pentax Optio WG-2 front
Portability
91
Imaging
39
Features
37
Overall
38

Olympus E-M1 III vs Pentax WG-2 Key Specs

Olympus E-M1 III
(Full Review)
  • 20MP - Four Thirds Sensor
  • 3" Fully Articulated Display
  • 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
  • Launched February 2020
  • Superseded the Olympus E-M1 II
Pentax WG-2
(Full Review)
  • 16MP - 1/2.3" Sensor
  • 3" Fixed Screen
  • ISO 125 - 6400
  • 1920 x 1080 video
  • 28-140mm (F3.5-5.5) lens
  • 192g - 122 x 61 x 30mm
  • Announced February 2012
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Olympus E-M1 III vs Pentax WG-2 Overview

Following is a complete review of the Olympus E-M1 III and Pentax WG-2, former is a Pro Mirrorless while the latter is a Waterproof by manufacturers Olympus and Pentax. There is a considerable difference between the sensor resolutions of the E-M1 III (20MP) and WG-2 (16MP) and the E-M1 III (Four Thirds) and WG-2 (1/2.3") provide different sensor sizes.

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The E-M1 III was released 8 years after the WG-2 which is quite a large difference as far as tech is concerned. Each of the cameras feature different body design with the Olympus E-M1 III being a SLR-style mirrorless camera and the Pentax WG-2 being a Compact camera.

Before diving into a complete comparison, here is a quick highlight of how the E-M1 III matches up against the WG-2 in terms of portability, imaging, features and an overall score.

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Reasons to pick Olympus E-M1 III over the Pentax WG-2

 E-M1 III WG-2 
AnnouncedFebruary 2020February 2012More modern by 98 months
Screen typeFully ArticulatedFixed Fully Articulating screen
Screen resolution1037k460kSharper screen (+577k dot)
Selfie screen Take selfies
Touch screen Quickly navigate

Reasons to pick Pentax WG-2 over the Olympus E-M1 III

 WG-2 E-M1 III 

Common features in the Olympus E-M1 III and Pentax WG-2

 E-M1 III WG-2 
Manually focus Dial precise focusing
Screen size3"3"Same screen dimensions

Olympus E-M1 III vs Pentax WG-2 Physical Comparison

If you're intending to carry around your camera frequently, you are going to need to take into account its weight and dimensions. The Olympus E-M1 III comes with outer measurements of 134mm x 91mm x 69mm (5.3" x 3.6" x 2.7") and a weight of 580 grams (1.28 lbs) whilst the Pentax WG-2 has dimensions of 122mm x 61mm x 30mm (4.8" x 2.4" x 1.2") accompanied by a weight of 192 grams (0.42 lbs).

Examine the Olympus E-M1 III and Pentax WG-2 in our completely new Camera plus Lens Size Comparison Tool. Camera Size Comparison with Lenses

Remember that, the weight of an ILC will vary depending on the lens you select at that time. Here is a front view dimensions comparison of the E-M1 III and the WG-2.

Olympus E-M1 III vs Pentax WG-2 size comparison

Considering size and weight, the portability grade of the E-M1 III and WG-2 is 67 and 91 respectively.

Olympus E-M1 III vs Pentax WG-2 top view buttons comparison

Olympus E-M1 III vs Pentax WG-2 Sensor Comparison

Oftentimes, its hard to visualize the difference between sensor sizes purely by going over specifications. The image below will help offer you a stronger sense of the sensor sizing in the E-M1 III and WG-2.

Plainly, both of the cameras feature different megapixels and different sensor sizes. The E-M1 III featuring a bigger sensor is going to make shooting shallow DOF less difficult and the Olympus E-M1 III will offer you extra detail as a result of its extra 4MP. Higher resolution can also help you crop shots way more aggressively. The younger E-M1 III should have a benefit in sensor tech.

Olympus E-M1 III vs Pentax WG-2 sensor size comparison

Olympus E-M1 III vs Pentax WG-2 Screen and ViewFinder

Olympus E-M1 III vs Pentax WG-2 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Olympus E-M1 III Portrait photography factors
Pentax WG-2 Portrait photography factors
77
you can focus manually
MP count decent (20 megapixels)
good sensor size (Four Thirds)
features face detect focusing
delivers RAW formats
40
focusing manually
good resolution (16 megapixels)
has face detection autofocus
no manual mode
cannot use external flash
very small sensor (1/2.3")
no RAW format
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Street Comparison

Olympus E-M1 III Street photography information
Pentax WG-2 Street photography information
78
screen articulates
has image stabilization (Sensor based 5-axis)
good sensor size (Four Thirds)
delivers RAW formats
comes with focus via touch
environment proof
above average ISO range (25,600)
54
weather sealing
screen is fixed
no image stabilization
very small sensor (1/2.3")
no RAW format
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Sports Comparison

Olympus E-M1 III Sports photography highlights
Pentax WG-2 Sports photography highlights
81
great max shutter speed (1/8,000s)
silent mode (1/32,000s)
max fps high (60.0 frames per second)
has image stabilization (Sensor based 5-axis)
MP count decent (20 megapixels)
good sensor size (Four Thirds)
features tracking focus
environment proof
comes with phase detect AF
38
good resolution (16 megapixels)
has tracking autofocus
weather sealing
low fps (1.0 frames per second)
no shutter priority
no image stabilization
very small sensor (1/2.3")
no phase detect autofocus
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Travel Comparison

Travel photography with Olympus E-M1 III
Travel photography with Pentax WG-2
79
environment proof
has bluetooth
comes with focus via touch
MP count decent (20 megapixels)
selfie friendly display
70
weather sealing
good resolution (16MP)
flash built-in
relatively wide (28mm)
does not offer selfie friendly display
slow maximum aperture (f3.5)
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Landscape Comparison

Olympus E-M1 III Landscape photography info
Pentax WG-2 Landscape photography info
81
you can focus manually
change lenses (Micro Four Thirds mount)
screen is a decent size (3 inch)
has image stabilization (Sensor based 5-axis)
MP count decent (20MP)
good sensor size (Four Thirds)
no low pass filter
above average ISO range (25,600)
delivers RAW formats
environment proof
two card slots
47
focusing manually
relatively wide (28mm)
pretty good screen size (3 inch)
good resolution (16 megapixels)
weather sealing
lens is fixed (fixed lens mount)
slow maximum aperture (f3.5)
no manual mode
no image stabilization
very small sensor (1/2.3")
no RAW format
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Vlogging Comparison

Vlogging with Olympus E-M1 III
Vlogging with Pentax WG-2
79
selfie friendly display
touchscreen enabled
has image stabilization (Sensor based 5-axis)
features face detect focusing
video resolution high (4096 x 2160 pixels)
does have mic socket
30
relatively wide (28mm)
has face detection autofocus
high video quality (1920 x 1080 resolution)
slow maximum aperture (f3.5)
does not offer selfie friendly display
no image stabilization
no external mic socket
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Olympus E-M1 III vs Pentax WG-2 Specifications

Detailed spec comparison table for Olympus E-M1 III and Pentax WG-2
 Olympus OM-D E-M1 Mark IIIPentax Optio WG-2
General Information
Brand Olympus Pentax
Model Olympus OM-D E-M1 Mark III Pentax Optio WG-2
Class Pro Mirrorless Waterproof
Launched 2020-02-11 2012-02-07
Physical type SLR-style mirrorless Compact
Sensor Information
Powered by TruePic IX -
Sensor type CMOS BSI-CMOS
Sensor size Four Thirds 1/2.3"
Sensor dimensions 17.4 x 13mm 6.17 x 4.55mm
Sensor surface area 226.2mm² 28.1mm²
Sensor resolution 20 megapixels 16 megapixels
Anti aliasing filter
Aspect ratio 4:3 1:1, 4:3 and 16:9
Peak resolution 5184 x 3888 4288 x 3216
Highest native ISO 25600 6400
Min native ISO 200 125
RAW data
Min enhanced ISO 64 -
Autofocusing
Focus manually
Touch focus
Continuous autofocus
Single autofocus
Autofocus tracking
Autofocus selectice
Autofocus center weighted
Autofocus multi area
Live view autofocus
Face detect focus
Contract detect focus
Phase detect focus
Number of focus points 121 9
Cross focus points 121 -
Lens
Lens mount Micro Four Thirds fixed lens
Lens focal range - 28-140mm (5.0x)
Maximum aperture - f/3.5-5.5
Macro focus range - 1cm
Number of lenses 107 -
Crop factor 2.1 5.8
Screen
Display type Fully Articulated Fixed Type
Display sizing 3 inches 3 inches
Resolution of display 1,037k dots 460k dots
Selfie friendly
Liveview
Touch capability
Display technology - Widescreen TFT color LCD with anti-reflective coating
Viewfinder Information
Viewfinder Electronic None
Viewfinder resolution 2,360k dots -
Viewfinder coverage 100 percent -
Viewfinder magnification 0.74x -
Features
Min shutter speed 60 secs 4 secs
Max shutter speed 1/8000 secs 1/4000 secs
Max quiet shutter speed 1/32000 secs -
Continuous shutter rate 60.0 frames/s 1.0 frames/s
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation Yes -
Custom white balance
Image stabilization
Inbuilt flash
Flash range no built-in flash 5.40 m
Flash options Redeye, Fill-in, Flash Off, Red-eye Slow sync.(1st curtain), Slow sync.(1st curtain), Slow sync.(2nd curtain), Manual Auto, On, Off, Red-eye, Soft
External flash
AEB
WB bracketing
Max flash synchronize 1/250 secs -
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 fps), 1280 x 720 (60, 30 fps), 640 x 480 (30fps), 320 x 240 (30, 15 fps)
Highest video resolution 4096x2160 1920x1080
Video file format MPEG-4, H.264 MPEG-4, H.264
Mic port
Headphone port
Connectivity
Wireless Built-In Eye-Fi Connected
Bluetooth
NFC
HDMI
USB USB 3.1 Gen 1 (5 GBit/sec) USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environment sealing
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 580g (1.28 lbs) 192g (0.42 lbs)
Physical dimensions 134 x 91 x 69mm (5.3" x 3.6" x 2.7") 122 x 61 x 30mm (4.8" x 2.4" x 1.2")
DXO scores
DXO Overall score not tested not tested
DXO Color Depth score not tested not tested
DXO Dynamic range score not tested not tested
DXO Low light score not tested not tested
Other
Battery life 420 photos 260 photos
Battery type Battery Pack Battery Pack
Battery model BLH-1 D-LI92
Self timer Yes (2 or 12 secs, custom) Yes (2 or 10 sec)
Time lapse shooting
Type of storage Dual SD/SDHC/SDXC slots (UHS-II on first slot) SD/SDHC/SDXC card, Internal
Card slots Dual Single
Cost at release $1,800 $350