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Olympus E-M1 III vs Pentax RZ10

Portability
67
Imaging
62
Features
96
Overall
75
Olympus OM-D E-M1 Mark III front
 
Pentax Optio RZ10 front
Portability
92
Imaging
37
Features
31
Overall
34

Olympus E-M1 III vs Pentax RZ10 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 Max Shutter
  • 4096 x 2160 video
  • Micro Four Thirds Mount
  • 580g - 134 x 91 x 69mm
  • Revealed February 2020
  • Older Model is Olympus E-M1 II
Pentax RZ10
(Full Review)
  • 14MP - 1/2.3" Sensor
  • 2.7" Fixed Screen
  • ISO 80 - 6400
  • Sensor-shift Image Stabilization
  • 1280 x 720 video
  • 28-280mm (F3.2-5.9) lens
  • 178g - 97 x 61 x 33mm
  • Released July 2011
Photography Glossary

Olympus E-M1 III vs Pentax RZ10 Overview

Lets look more closely at the Olympus E-M1 III versus Pentax RZ10, one is a Pro Mirrorless and the latter is a Small Sensor Compact by companies Olympus and Pentax. There is a sizeable difference between the sensor resolutions of the E-M1 III (20MP) and RZ10 (14MP) and the E-M1 III (Four Thirds) and RZ10 (1/2.3") provide different sensor sizing.

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The E-M1 III was introduced 8 years after the RZ10 which is quite a large gap as far as tech is concerned. Both of these cameras feature different body design with the Olympus E-M1 III being a SLR-style mirrorless camera and the Pentax RZ10 being a Compact camera.

Before we go straight to a comprehensive comparison, here is a quick view of how the E-M1 III grades vs the RZ10 with respect to portability, imaging, features and an overall mark.

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Reasons to pick Olympus E-M1 III over the Pentax RZ10

 E-M1 III RZ10 
ReleasedFebruary 2020July 2011Newer by 105 months
Screen typeFully ArticulatedFixed Fully Articulating screen
Screen size3"2.7"Bigger screen (+0.3")
Screen resolution1037k230kCrisper screen (+807k dot)
Selfie screen Take selfies
Touch screen Quickly navigate

Reasons to pick Pentax RZ10 over the Olympus E-M1 III

 RZ10 E-M1 III 

Common features in the Olympus E-M1 III and Pentax RZ10

 E-M1 III RZ10 
Manually focus Very precise focus

Olympus E-M1 III vs Pentax RZ10 Physical Comparison

If you are intending to travel with your camera frequently, you should factor in its weight and size. The Olympus E-M1 III offers physical measurements 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 RZ10 has specifications of 97mm x 61mm x 33mm (3.8" x 2.4" x 1.3") along with a weight of 178 grams (0.39 lbs).

Examine the Olympus E-M1 III versus Pentax RZ10 in the all new Camera with Lens Size Comparison Tool. Camera Size Comparison with Lenses

Remember that, the weight of an Interchangeable Lens Camera will vary dependant on the lens you have at that time. Following is a front view proportions comparison of the E-M1 III compared to the RZ10.

Olympus E-M1 III vs Pentax RZ10 size comparison

Considering size and weight, the portability score of the E-M1 III and RZ10 is 67 and 92 respectively.

Olympus E-M1 III vs Pentax RZ10 top view buttons comparison

Olympus E-M1 III vs Pentax RZ10 Sensor Comparison

Usually, it is very hard to imagine the contrast between sensor dimensions just by checking technical specs. The pic below may provide you a more clear sense of the sensor measurements in the E-M1 III and RZ10.

As you can tell, each of these cameras come with different resolutions and different sensor dimensions. The E-M1 III having a bigger sensor is going to make achieving shallow DOF simpler and the Olympus E-M1 III will give greater detail using its extra 6 Megapixels. Higher resolution will enable you to crop shots a good deal more aggressively. The newer E-M1 III should have a benefit when it comes to sensor technology.

Olympus E-M1 III vs Pentax RZ10 sensor size comparison

Olympus E-M1 III vs Pentax RZ10 Screen and ViewFinder

Olympus E-M1 III vs Pentax RZ10 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Olympus E-M1 III Portrait photography features
Pentax RZ10 Portrait photography features
77
manual focus
megapixel count good (20 megapixels)
sensor size is good (Four Thirds)
has face detect autofocus
supports RAW formats
35
focusing manually
MP count decent (14 megapixels)
no manual mode
external flash not possible
sensor is very small (1/2.3")
does not have RAW format
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Street Comparison

Street photography with Olympus E-M1 III
Street photography with Pentax RZ10
78
screen can move to multiple angles
has image stabilization (Sensor based 5-axis)
sensor size is good (Four Thirds)
supports RAW formats
has touch to focus
environment proofing
great ISO range (25,600)
61
image stabilization (Sensor-shift)
weather sealing
no articulating screen
sensor is very small (1/2.3")
does not have RAW format
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Sports Comparison

Olympus E-M1 III Sports photography factors
Pentax RZ10 Sports photography factors
81
great max shutter speed (1/8,000 seconds)
quiet shutter (1/32,000 seconds)
high max fps (60.0 frames per second)
has image stabilization (Sensor based 5-axis)
megapixel count good (20 megapixels)
sensor size is good (Four Thirds)
has tracking focus
environment proofing
has phase detect autofocus
40
image stabilization (Sensor-shift)
MP count decent (14MP)
has tracking focus
weather sealing
max frames per second very slow (1.0 frames/s)
no shutter priority mode
sensor is very small (1/2.3")
low battery power (178 per charge)
does not have phase detect autofocus
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Travel Comparison

Olympus E-M1 III as a Travel photography camera
Pentax RZ10 as a Travel photography camera
79
environment proofing
supports bluetooth
has touch to focus
megapixel count good (20MP)
selfie friendly display
66
weather sealing
MP count decent (14 megapixels)
flash built-in
reasonably wide (28mm)
great reach (280mm)
no Timelapse mode
low battery power (178 shots)
screen is not selfie friendly
somewhat slow max aperture (f3.2)
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Landscape Comparison

Olympus E-M1 III as a Landscape photography camera
Pentax RZ10 as a Landscape photography camera
81
manual focus
interchangeable lenses (Micro Four Thirds mount)
screen size is good (3 inches)
has image stabilization (Sensor based 5-axis)
megapixel count good (20 megapixels)
sensor size is good (Four Thirds)
does not have anti-alias filter
great ISO range (25,600)
supports RAW formats
environment proofing
2 card slots
43
focusing manually
reasonably wide (28mm)
image stabilization (Sensor-shift)
MP count decent (14 megapixels)
weather sealing
lens is fixed (fixed lens mount)
somewhat slow max aperture (f3.2)
screen is somewhat small (2.7 inches)
no manual mode
sensor is very small (1/2.3")
does not have RAW format
low battery power (178 per charge)
no Timelapse mode
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Vlogging Comparison

Olympus E-M1 III Vlogging factors
Pentax RZ10 Vlogging factors
79
selfie friendly display
has touchscreen
has image stabilization (Sensor based 5-axis)
has face detect autofocus
video resolution high (4096 x 2160 resolution)
has microphone support
28
reasonably wide (28mm)
image stabilization (Sensor-shift)
somewhat slow max aperture (f3.2)
screen is not selfie friendly
low quality video (1280 x 720 pixels)
no microphone support
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Olympus E-M1 III vs Pentax RZ10 Specifications

Detailed spec comparison table for Olympus E-M1 III and Pentax RZ10
 Olympus OM-D E-M1 Mark IIIPentax Optio RZ10
General Information
Brand Name Olympus Pentax
Model type Olympus OM-D E-M1 Mark III Pentax Optio RZ10
Category Pro Mirrorless Small Sensor Compact
Revealed 2020-02-11 2011-07-19
Physical type SLR-style mirrorless Compact
Sensor Information
Processor TruePic IX -
Sensor type CMOS CCD
Sensor size Four Thirds 1/2.3"
Sensor measurements 17.4 x 13mm 6.08 x 4.56mm
Sensor area 226.2mm² 27.7mm²
Sensor resolution 20 megapixels 14 megapixels
Anti alias filter
Aspect ratio 4:3 1:1, 4:3 and 16:9
Maximum resolution 5184 x 3888 4288 x 3216
Maximum native ISO 25600 6400
Minimum native ISO 200 80
RAW pictures
Minimum boosted ISO 64 -
Autofocusing
Focus manually
Touch focus
Continuous autofocus
Single autofocus
Tracking autofocus
Autofocus selectice
Autofocus center weighted
Autofocus multi area
Live view autofocus
Face detection focus
Contract detection focus
Phase detection focus
Total focus points 121 9
Cross type focus points 121 -
Lens
Lens support Micro Four Thirds fixed lens
Lens zoom range - 28-280mm (10.0x)
Max aperture - f/3.2-5.9
Macro focusing range - 1cm
Available lenses 107 -
Crop factor 2.1 5.9
Screen
Type of screen Fully Articulated Fixed Type
Screen diagonal 3" 2.7"
Resolution of screen 1,037k dots 230k dots
Selfie friendly
Liveview
Touch display
Screen tech - 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
Lowest shutter speed 60 secs 4 secs
Highest shutter speed 1/8000 secs 1/2000 secs
Highest silent shutter speed 1/32000 secs -
Continuous shooting rate 60.0 frames per sec 1.0 frames per sec
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation Yes -
Change white balance
Image stabilization
Integrated flash
Flash distance no built-in flash 2.80 m
Flash modes 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
Hot shoe
Auto exposure bracketing
White balance bracketing
Highest flash synchronize 1/250 secs -
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
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 1280 x 720 (30, 15 fps), 640 x 480 (30, 15 fps), 320 x 240 (30, 15 fps)
Maximum video resolution 4096x2160 1280x720
Video format MPEG-4, H.264 Motion JPEG
Microphone support
Headphone support
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 proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 580g (1.28 lb) 178g (0.39 lb)
Physical dimensions 134 x 91 x 69mm (5.3" x 3.6" x 2.7") 97 x 61 x 33mm (3.8" x 2.4" x 1.3")
DXO scores
DXO All around 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 pictures 178 pictures
Battery style Battery Pack Battery Pack
Battery ID BLH-1 D-LI92
Self timer Yes (2 or 12 secs, custom) Yes (2 or 10 sec)
Time lapse recording
Type of storage Dual SD/SDHC/SDXC slots (UHS-II on first slot) SD/SDHC, Internal
Card slots 2 1
Launch price $1,800 $200