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Olympus E-M1 III vs Pentax P70

Portability
67
Imaging
62
Features
96
Overall
75
Olympus OM-D E-M1 Mark III front
 
Pentax Optio P70 front
Portability
95
Imaging
34
Features
20
Overall
28

Olympus E-M1 III vs Pentax P70 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
  • Superseded the Olympus E-M1 II
Pentax P70
(Full Review)
  • 12MP - 1/2.3" Sensor
  • 2.7" Fixed Screen
  • ISO 64 - 6400
  • 1280 x 720 video
  • 28-110mm (F2.8-5.0) lens
  • 155g - 97 x 54 x 22mm
  • Announced March 2009
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Olympus E-M1 III vs Pentax P70 Overview

Let's look a bit more in depth at the Olympus E-M1 III versus Pentax P70, former is a Pro Mirrorless while the latter is a Ultracompact by companies Olympus and Pentax. There is a substantial difference among the image resolutions of the E-M1 III (20MP) and P70 (12MP) and the E-M1 III (Four Thirds) and P70 (1/2.3") boast totally different sensor measurements.

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The E-M1 III was manufactured 11 years after the P70 which is a fairly big difference as far as camera tech is concerned. Both the cameras have different body design with the Olympus E-M1 III being a SLR-style mirrorless camera and the Pentax P70 being a Ultracompact camera.

Before getting straight to a complete comparison, here is a simple summation of how the E-M1 III grades vs the P70 in regards to portability, imaging, features and an overall mark.

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Reasons to pick Olympus E-M1 III over the Pentax P70

 E-M1 III P70 
AnnouncedFebruary 2020March 2009Newer by 134 months
Screen typeFully ArticulatedFixed Fully Articulating screen
Screen dimensions3"2.7"Bigger screen (+0.3")
Screen resolution1037k230kCrisper screen (+807k dot)
Selfie screen Take selfies
Touch screen Quickly navigate

Reasons to pick Pentax P70 over the Olympus E-M1 III

 P70 E-M1 III 

Common features in the Olympus E-M1 III and Pentax P70

 E-M1 III P70 
Manually focus More exact focusing

Olympus E-M1 III vs Pentax P70 Physical Comparison

For those who are planning to travel with your camera frequently, you will want to take into account its weight and dimensions. The Olympus E-M1 III comes with physical dimensions of 134mm x 91mm x 69mm (5.3" x 3.6" x 2.7") accompanied by a weight of 580 grams (1.28 lbs) while the Pentax P70 has dimensions of 97mm x 54mm x 22mm (3.8" x 2.1" x 0.9") along with a weight of 155 grams (0.34 lbs).

Take a look at the Olympus E-M1 III versus Pentax P70 in our completely new Camera & Lens Size Comparison Tool. Camera Size Comparison with Lenses

Take into consideration, the weight of an ILC will vary depending on the lens you choose at that time. Here is a front view physical size comparison of the E-M1 III versus the P70.

Olympus E-M1 III vs Pentax P70 size comparison

Taking into account size and weight, the portability rating of the E-M1 III and P70 is 67 and 95 respectively.

Olympus E-M1 III vs Pentax P70 top view buttons comparison

Olympus E-M1 III vs Pentax P70 Sensor Comparison

Often, it's tough to see the gap in sensor dimensions just by seeing specifications. The picture below will provide you a better sense of the sensor sizes in the E-M1 III and P70.

Plainly, the two cameras have different megapixels and different sensor dimensions. The E-M1 III featuring a bigger sensor will make achieving bokeh easier and the Olympus E-M1 III will produce more detail due to its extra 8 Megapixels. Higher resolution will help you crop photographs a bit more aggressively. The fresher E-M1 III will have an advantage when it comes to sensor innovation.

Olympus E-M1 III vs Pentax P70 sensor size comparison

Olympus E-M1 III vs Pentax P70 Screen and ViewFinder

Olympus E-M1 III vs Pentax P70 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Portrait photography with Olympus E-M1 III
Portrait photography with Pentax P70
77
you can focus manually
good megapixels (20MP)
nice sensor size (Four Thirds)
has face detection autofocus
exports RAW files
27
you can focus manually
no manual mode
external flash not possible
megapixel count low (12 megapixels)
very small sensor (1/2.3")
lack of RAW support
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Street Comparison

Olympus E-M1 III as a Street photography camera
Pentax P70 as a Street photography camera
78
screen articulates fully
built in image stabilization (Sensor based 5-axis)
nice sensor size (Four Thirds)
exports RAW files
offers focus via touch
environment proof
very good ISO range (25,600)
47
no moving screen
no image stabilization
very small sensor (1/2.3")
lack of RAW support
heavier than competition in class (155 grams)
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Sports Comparison

Olympus E-M1 III Sports photography advice
Pentax P70 Sports photography advice
81
max shutter speed is good (1/8,000 seconds)
quiet shooting (1/32,000 seconds)
fast shooting (60.0 fps)
built in image stabilization (Sensor based 5-axis)
good megapixels (20MP)
nice sensor size (Four Thirds)
has tracking autofocus
environment proof
sensor has phase detect autofocus
17
low max shutter speed (1/1,000 seconds)
no shutter priority mode
no image stabilization
megapixel count low (12 megapixels)
very small sensor (1/2.3")
lack of phase detect autofocus
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Travel Comparison

Olympus E-M1 III Travel photography information
Pentax P70 Travel photography information
79
environment proof
connects via bluetooth
offers focus via touch
good megapixels (20MP)
selfie friendly display
56
flash built-in
pretty wide (28mm)
does not have Time Lapse function
heavier than competition in class (155 grams)
megapixel count low (12MP)
screen is not selfie friendly
slow max aperture (f2.8)
Photography Glossary

Landscape Comparison

Landscape photography with Olympus E-M1 III
Landscape photography with Pentax P70
81
you can focus manually
switch lenses (Micro Four Thirds mount)
screen size is good (3 inch)
built in image stabilization (Sensor based 5-axis)
good megapixels (20 megapixels)
nice sensor size (Four Thirds)
does not have anti-alias filter
very good ISO range (25,600)
exports RAW files
environment proof
has double storage slots
32
you can focus manually
pretty wide (28mm)
fixed lens (fixed lens mount)
slow max aperture (f2.8)
tiny screen (2.7")
no manual mode
no image stabilization
megapixel count low (12 megapixels)
very small sensor (1/2.3")
lack of RAW support
does not have Time Lapse function
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Vlogging Comparison

Olympus E-M1 III Vlogging advice
Pentax P70 Vlogging advice
79
selfie friendly display
touchscreen functionality
built in image stabilization (Sensor based 5-axis)
has face detection autofocus
video resolution high (4096 x 2160 pxls)
includes external microphone port
25
pretty wide (28mm)
slow max aperture (f2.8)
screen is not selfie friendly
no image stabilization
low quality video (1280 x 720 pxls)
does not have external mic support
heavier than competition in class (155g)
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Olympus E-M1 III vs Pentax P70 Specifications

Detailed spec comparison table for Olympus E-M1 III and Pentax P70
 Olympus OM-D E-M1 Mark IIIPentax Optio P70
General Information
Make Olympus Pentax
Model type Olympus OM-D E-M1 Mark III Pentax Optio P70
Category Pro Mirrorless Ultracompact
Revealed 2020-02-11 2009-03-02
Physical type SLR-style mirrorless Ultracompact
Sensor Information
Powered by TruePic IX -
Sensor type CMOS CCD
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 12 megapixels
Anti alias filter
Aspect ratio 4:3 -
Highest Possible resolution 5184 x 3888 4000 x 3000
Maximum native ISO 25600 6400
Min native ISO 200 64
RAW photos
Min enhanced ISO 64 -
Autofocusing
Focus manually
Touch to focus
Continuous AF
AF single
AF tracking
AF selectice
AF center weighted
AF multi area
Live view AF
Face detection focusing
Contract detection focusing
Phase detection focusing
Total focus points 121 9
Cross type focus points 121 -
Lens
Lens mount type Micro Four Thirds fixed lens
Lens zoom range - 28-110mm (3.9x)
Largest aperture - f/2.8-5.0
Macro focusing range - 10cm
Number of lenses 107 -
Focal length multiplier 2.1 5.8
Screen
Screen type Fully Articulated Fixed Type
Screen size 3 inches 2.7 inches
Resolution of screen 1,037k dots 230k dots
Selfie friendly
Liveview
Touch screen
Viewfinder Information
Viewfinder type Electronic None
Viewfinder resolution 2,360k dots -
Viewfinder coverage 100 percent -
Viewfinder magnification 0.74x -
Features
Min shutter speed 60 seconds 4 seconds
Max shutter speed 1/8000 seconds 1/1000 seconds
Max silent shutter speed 1/32000 seconds -
Continuous shutter rate 60.0fps -
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation Yes -
Change WB
Image stabilization
Inbuilt flash
Flash distance no built-in flash 4.60 m
Flash options Redeye, Fill-in, Flash Off, Red-eye Slow sync.(1st curtain), Slow sync.(1st curtain), Slow sync.(2nd curtain), Manual -
External flash
AEB
White balance bracketing
Max flash synchronize 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 1280 x 720 (15 fps), 848 x 480 (15 fps), 640 x 480 (30 fps), 320 x 240 (30 fps)
Maximum video resolution 4096x2160 1280x720
Video file format MPEG-4, H.264 Motion JPEG
Mic support
Headphone support
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 sealing
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 580g (1.28 pounds) 155g (0.34 pounds)
Physical dimensions 134 x 91 x 69mm (5.3" x 3.6" x 2.7") 97 x 54 x 22mm (3.8" x 2.1" x 0.9")
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 -
Battery style Battery Pack -
Battery ID BLH-1 -
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, Internal
Card slots Two One
Pricing at release $1,800 $200