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Olympus E-M10 IV vs Pentax K-3 II

Portability
81
Imaging
62
Features
83
Overall
70
Olympus OM-D E-M10 IV front
 
Pentax K-3 II front
Portability
59
Imaging
66
Features
84
Overall
73

Olympus E-M10 IV vs Pentax K-3 II Key Specs

Olympus E-M10 IV
(Full Review)
  • 20MP - Four Thirds Sensor
  • 3" Tilting Screen
  • ISO 200 - 25600
  • Sensor based 5-axis Image Stabilization
  • 3840 x 2160 video
  • Micro Four Thirds Mount
  • 383g - 122 x 84 x 49mm
  • Launched August 2020
  • Earlier Model is Olympus E-M10 III
Pentax K-3 II
(Full Review)
  • 24MP - APS-C Sensor
  • 3.2" Fixed Display
  • ISO 100 - 51200
  • Sensor based Image Stabilization
  • No Anti-Alias Filter
  • 1/8000s Max Shutter
  • 1920 x 1080 video
  • Pentax KAF2 Mount
  • 800g - 131 x 100 x 77mm
  • Released April 2015
  • Previous Model is Pentax K-3
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Olympus E-M10 IV vs Pentax K-3 II Overview

Let's examine more closely at the Olympus E-M10 IV versus Pentax K-3 II, one is a Entry-Level Mirrorless and the other is a Advanced DSLR by manufacturers Olympus and Pentax. The sensor resolution of the E-M10 IV (20MP) and the K-3 II (24MP) is very similar but the E-M10 IV (Four Thirds) and K-3 II (APS-C) possess totally different sensor measurements.

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The E-M10 IV was announced 5 years after the K-3 II which is quite a big gap as far as technology is concerned. Both cameras come with different body type with the Olympus E-M10 IV being a SLR-style mirrorless camera and the Pentax K-3 II being a Mid-size SLR camera.

Before getting through a in-depth comparison, below is a simple highlight of how the E-M10 IV scores vs the K-3 II in the way of portability, imaging, features and an overall mark.

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Reasons to pick Olympus E-M10 IV over the Pentax K-3 II

 E-M10 IV K-3 II 
ReleasedAugust 2020April 2015Newer by 65 months
Display typeTiltingFixed Tilting display
Display resolution1040k1037kSharper display (+3k dot)
Selfie screen Easy selfies
Touch friendly display Easily navigate

Reasons to pick Pentax K-3 II over the Olympus E-M10 IV

 K-3 II E-M10 IV 
Display dimension3.2"3"Larger display (+0.2")

Common features in the Olympus E-M10 IV and Pentax K-3 II

 E-M10 IV K-3 II 
Focus manually Very precise focus

Olympus E-M10 IV vs Pentax K-3 II Physical Comparison

If you're planning to travel with your camera often, you will want to factor its weight and dimensions. The Olympus E-M10 IV enjoys outside dimensions of 122mm x 84mm x 49mm (4.8" x 3.3" x 1.9") having a weight of 383 grams (0.84 lbs) whilst the Pentax K-3 II has dimensions of 131mm x 100mm x 77mm (5.2" x 3.9" x 3.0") with a weight of 800 grams (1.76 lbs).

See the Olympus E-M10 IV versus Pentax K-3 II in the new Camera with Lens Size Comparison Tool. Camera Size Comparison with Lenses

Don't forget, the weight of an Interchangeable Lens Camera will vary based on the lens you are utilizing at that moment. Underneath is the front view measurements comparison of the E-M10 IV vs the K-3 II.

Olympus E-M10 IV vs Pentax K-3 II size comparison

Factoring in dimensions and weight, the portability rating of the E-M10 IV and K-3 II is 81 and 59 respectively.

Olympus E-M10 IV vs Pentax K-3 II top view buttons comparison

Olympus E-M10 IV vs Pentax K-3 II Sensor Comparison

Normally, it is tough to see the gap between sensor dimensions merely by going over specs. The picture below might provide you a stronger sense of the sensor dimensions in the E-M10 IV and K-3 II.

As you can plainly see, both cameras have got different megapixel count and different sensor dimensions. The E-M10 IV having a tinier sensor will make achieving shallower depth of field harder and the Pentax K-3 II will deliver greater detail with its extra 4 Megapixels. Greater resolution will also make it easier to crop pics much more aggressively. The fresher E-M10 IV will have an edge in sensor innovation.

Olympus E-M10 IV vs Pentax K-3 II sensor size comparison

Olympus E-M10 IV vs Pentax K-3 II Screen and ViewFinder

Olympus E-M10 IV vs Pentax K-3 II Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Olympus E-M10 IV Portrait photography highlights
Pentax K-3 II Portrait photography highlights
77
you can focus manually
MP count good (20 megapixels)
nice sensor size (Four Thirds)
offers face detection autofocus
exports RAW formats
79
manual focus
megapixel count decent (24MP)
decent sensor size (APS-C)
has face detection focus
exports RAW formats
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Street Comparison

Olympus E-M10 IV Street photography features
Pentax K-3 II Street photography features
84
screen tilts up and down
has image stabilization (Sensor based 5-axis)
nice sensor size (Four Thirds)
exports RAW formats
includes touch to focus
good high ISO (25,600)
69
image stabilization (Sensor based)
decent sensor size (APS-C)
exports RAW formats
environment proofing
above average ISO range (51,200)
screen is fixed
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Sports Comparison

Olympus E-M10 IV as a Sports photography camera
Pentax K-3 II as a Sports photography camera
72
quiet mode (1/16,000s)
has image stabilization (Sensor based 5-axis)
MP count good (20MP)
nice sensor size (Four Thirds)
offers tracking autofocus
doesn't have phase detect autofocus
76
great max shutter speed (1/8,000s)
image stabilization (Sensor based)
megapixel count decent (24MP)
decent sensor size (APS-C)
has tracking autofocus
environment proofing
supports phase detect auto focus
low battery power (720 per charge)
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Travel Comparison

Olympus E-M10 IV Travel photography info
Pentax K-3 II Travel photography info
84
supports bluetooth
includes touch to focus
MP count good (20MP)
flash built-in
screen is selfie friendly
56
environment proofing
megapixel count decent (24MP)
low battery power (720 per charge)
doesn't offer selfie friendly screen
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Landscape Comparison

Olympus E-M10 IV Landscape photography information
Pentax K-3 II Landscape photography information
82
you can focus manually
switch lenses (Micro Four Thirds mount)
screen size is good (3")
has image stabilization (Sensor based 5-axis)
MP count good (20 megapixels)
nice sensor size (Four Thirds)
good high ISO (25,600)
exports RAW formats
78
manual focus
swap lenses (Pentax KAF2 mount)
nice screen size (3.2")
image stabilization (Sensor based)
megapixel count decent (24MP)
decent sensor size (APS-C)
no low pass filter
above average ISO range (51,200)
exports RAW formats
environment proofing
two card slots
low battery power (720 per charge)
Photography Glossary

Vlogging Comparison

Olympus E-M10 IV as a Vlogging camera
Pentax K-3 II as a Vlogging camera
78
screen is selfie friendly
touchscreen functionality
has image stabilization (Sensor based 5-axis)
offers face detection autofocus
high res video (3840 x 2160 pxls)
doesn't have external microphone jack
34
image stabilization (Sensor based)
has face detection focus
high quality video (1920 x 1080 pixels)
comes with external mic socket
doesn't offer selfie friendly screen
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Olympus E-M10 IV vs Pentax K-3 II Specifications

Detailed spec comparison table for Olympus E-M10 IV and Pentax K-3 II
 Olympus OM-D E-M10 IVPentax K-3 II
General Information
Company Olympus Pentax
Model type Olympus OM-D E-M10 IV Pentax K-3 II
Class Entry-Level Mirrorless Advanced DSLR
Launched 2020-08-04 2015-04-23
Physical type SLR-style mirrorless Mid-size SLR
Sensor Information
Powered by TruePic VIII Prime III
Sensor type CMOS CMOS
Sensor size Four Thirds APS-C
Sensor dimensions 17.4 x 13mm 23.5 x 15.6mm
Sensor area 226.2mm² 366.6mm²
Sensor resolution 20MP 24MP
Anti alias filter
Aspect ratio 1:1, 4:3, 3:2 and 16:9 3:2
Maximum resolution 5184 x 3888 6016 x 4000
Maximum native ISO 25600 51200
Lowest native ISO 200 100
RAW images
Lowest boosted ISO 100 -
Autofocusing
Manual focusing
AF touch
Continuous AF
AF single
AF tracking
Selective AF
Center weighted AF
AF multi area
AF live view
Face detection focusing
Contract detection focusing
Phase detection focusing
Total focus points 121 27
Cross type focus points - 25
Lens
Lens mount type Micro Four Thirds Pentax KAF2
Number of lenses 107 151
Focal length multiplier 2.1 1.5
Screen
Type of screen Tilting Fixed Type
Screen diagonal 3 inch 3.2 inch
Resolution of screen 1,040 thousand dots 1,037 thousand dots
Selfie friendly
Liveview
Touch screen
Viewfinder Information
Viewfinder type Electronic Optical (pentaprism)
Viewfinder resolution 2,360 thousand dots -
Viewfinder coverage 100% 100%
Viewfinder magnification 0.62x 0.64x
Features
Lowest shutter speed 60s 30s
Highest shutter speed 1/4000s 1/8000s
Highest silent shutter speed 1/16000s -
Continuous shooting rate 8.7 frames per sec 8.3 frames per sec
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes Yes
Custom WB
Image stabilization
Integrated flash
Flash distance 7.20 m (at ISO 200) no built-in flash
Flash options Redeye, fill-in, off, redeye slow-sync (1st-curtain), slow sync (1st-curtain), slow sync (2nd-curtain), manual Auto Flash Discharge, Auto Flash + Red-eye Reduction, Flash On, Flash On + Red-eye Reduction, Slow-speed Sync, Slow-speed Sync + Red-eye, P-TTL, Trailing Curtain Sync, Contrast-control-sync, High-speed sync, Wireless sync (available with dedicated external flash)
Hot shoe
Auto exposure bracketing
White balance bracketing
Highest flash synchronize 1/250s 1/180s
Exposure
Multisegment exposure
Average exposure
Spot exposure
Partial exposure
AF area exposure
Center weighted exposure
Video features
Supported video resolutions 3840 x 2160 @ 30p / 102 Mbps, MOV, H.264, Linear PCM3840 x 2160 @ 25p / 102 Mbps, MOV, H.264, Linear PCM3840 x 2160 @ 24p / 102 Mbps, MOV, H.264, Linear PCM1920 x 1080 @ 60p / 52 Mbps, MOV, H.264, Linear PCM1920 x 1080 @ 50p / 52 Mbps, MOV, H.264, Linear PCM1920 x 1080 @ 30p / 52 Mbps, MOV, H.264, Linear PCM1920 x 1080 @ 25p / 52 Mbps, MOV, H.264, Linear PCM1920 x 1080 @ 24p / 52 Mbps, MOV, H.264, Linear PCM 1920 x 1080 (60i, 50i, 30p, 25p, 24p), 1280 x 720 (60p, 50p, 30p, 25p, 24p)
Maximum video resolution 3840x2160 1920x1080
Video data format MPEG-4, H.264 MPEG-4, H.264
Mic port
Headphone port
Connectivity
Wireless Built-In Optional
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 3.0 (5 GBit/sec)
GPS None BuiltIn
Physical
Environmental sealing
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 383 gr (0.84 lbs) 800 gr (1.76 lbs)
Dimensions 122 x 84 x 49mm (4.8" x 3.3" x 1.9") 131 x 100 x 77mm (5.2" x 3.9" x 3.0")
DXO scores
DXO All around rating not tested 80
DXO Color Depth rating not tested 23.6
DXO Dynamic range rating not tested 13.6
DXO Low light rating not tested 1106
Other
Battery life 360 photos 720 photos
Form of battery Battery Pack Battery Pack
Battery ID BLS-50 D-LI90
Self timer Yes (2 or 12 sec, custom) Yes ( 2 or 12 seconds)
Time lapse recording
Storage type SD/SDHC/SDXC (UHS-II supported) Dual SD/SDHC/SDXC
Card slots 1 Dual
Launch cost $699 $829