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Olympus E-M5 III vs Pentax E85

Portability
80
Imaging
62
Features
88
Overall
72
Olympus OM-D E-M5 III front
 
Pentax Optio E85 front
Portability
95
Imaging
35
Features
10
Overall
25

Olympus E-M5 III vs Pentax E85 Key Specs

Olympus E-M5 III
(Full Review)
  • 20MP - Four Thirds Sensor
  • 3" Fully Articulated Display
  • ISO 200 - 25600
  • Sensor based 5-axis Image Stabilization
  • 1/8000s Max Shutter
  • 4096 x 2160 video
  • Micro Four Thirds Mount
  • 414g - 125 x 85 x 50mm
  • Introduced October 2019
  • Superseded the Olympus E-M5 II
  • Updated by OM System OM-5
Pentax E85
(Full Review)
  • 12MP - 1/2.3" Sensor
  • 2.7" Fixed Display
  • ISO 80 - 3200
  • 640 x 480 video
  • 32-96mm (F2.9-5.2) lens
  • 145g - 93 x 58 x 24mm
  • Announced September 2009
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Olympus E-M5 III vs Pentax E85 Overview

Its time to look more closely at the Olympus E-M5 III versus Pentax E85, one is a Advanced Mirrorless and the other is a Small Sensor Compact by brands Olympus and Pentax. There exists a big gap between the image resolutions of the E-M5 III (20MP) and E85 (12MP) and the E-M5 III (Four Thirds) and E85 (1/2.3") provide different sensor size.

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The E-M5 III was brought out 10 years after the E85 which is quite a big gap as far as technology is concerned. Both cameras feature different body design with the Olympus E-M5 III being a SLR-style mirrorless camera and the Pentax E85 being a Compact camera.

Before going right into a full comparison, here is a simple view of how the E-M5 III matches up vs the E85 with regard to portability, imaging, features and an overall mark.

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Reasons to pick Olympus E-M5 III over the Pentax E85

 E-M5 III E85 
AnnouncedOctober 2019September 2009Newer by 123 months
Manual focus Very precise focusing
Display typeFully ArticulatedFixed Fully Articulating display
Display size3"2.7"Larger display (+0.3")
Display resolution1040k230kSharper display (+810k dot)
Selfie screen Take selfies
Touch display Easily navigate

Reasons to pick Pentax E85 over the Olympus E-M5 III

 E85 E-M5 III 

Common features in the Olympus E-M5 III and Pentax E85

 E-M5 III E85 

Olympus E-M5 III vs Pentax E85 Physical Comparison

For those who are aiming to travel with your camera regularly, you will want to think about its weight and measurements. The Olympus E-M5 III has external measurements of 125mm x 85mm x 50mm (4.9" x 3.3" x 2.0") with a weight of 414 grams (0.91 lbs) and the Pentax E85 has proportions of 93mm x 58mm x 24mm (3.7" x 2.3" x 0.9") along with a weight of 145 grams (0.32 lbs).

Analyze the Olympus E-M5 III versus Pentax E85 in the all new Camera with Lens Size Comparison Tool. Camera Size Comparison with Lenses

Remember, the weight of an Interchangeable Lens Camera will vary depending on the lens you are working with at that moment. Underneath is a front view physical size comparison of the E-M5 III versus the E85.

Olympus E-M5 III vs Pentax E85 size comparison

Taking into consideration dimensions and weight, the portability rating of the E-M5 III and E85 is 80 and 95 respectively.

Olympus E-M5 III vs Pentax E85 top view buttons comparison

Olympus E-M5 III vs Pentax E85 Sensor Comparison

Typically, its tough to visualize the difference between sensor dimensions merely by checking technical specs. The picture below should give you a far better sense of the sensor sizing in the E-M5 III and E85.

As you have seen, both of those cameras feature different resolutions and different sensor dimensions. The E-M5 III featuring a larger sensor is going to make getting shallower DOF simpler and the Olympus E-M5 III will give greater detail having its extra 8MP. Greater resolution will also enable you to crop images way more aggressively. The newer E-M5 III provides an edge in sensor innovation.

Olympus E-M5 III vs Pentax E85 sensor size comparison

Olympus E-M5 III vs Pentax E85 Screen and ViewFinder

Olympus E-M5 III vs Pentax E85 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Olympus E-M5 III as a Portrait photography camera
Pentax E85 as a Portrait photography camera
77
manual focus
decent sensor resolution (20 megapixels)
decent sensor size (Four Thirds)
offers face detection autofocus
delivers RAW files
21
focusing manually not possible
manual mode not possible
can't use external flash
resolution not great (12 megapixels)
small sensor (1/2.3")
doesn't have RAW format
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Street Comparison

Olympus E-M5 III Street photography factors
Pentax E85 Street photography factors
83
fully articulated screen
built in image stabilization (Sensor based 5-axis)
decent sensor size (Four Thirds)
delivers RAW files
boasts focus via touch
environment proof
great high ISO (25,600)
47
screen is fixed
lack of image stabilization
small sensor (1/2.3")
doesn't have RAW format
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Sports Comparison

Olympus E-M5 III Sports photography advice
Pentax E85 Sports photography advice
76
great max shutter speed (1/8,000s)
silent shutter (1/32,000s)
high frames per second (30.0 frames per second)
built in image stabilization (Sensor based 5-axis)
decent sensor resolution (20MP)
decent sensor size (Four Thirds)
offers tracking autofocus
environment proof
sensor has phase detect autofocus
not so great battery life (310 per charge)
17
very slow continuous shooting (1.0 frames/s)
lack of shutter priority mode
lack of image stabilization
resolution not great (12 megapixels)
small sensor (1/2.3")
doesn't have phase detect auto focus
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Travel Comparison

Olympus E-M5 III Travel photography information
Pentax E85 Travel photography information
77
environment proof
connects via bluetooth
boasts focus via touch
decent sensor resolution (20MP)
display is selfie friendly
not so great battery life (310 per charge)
51
built-in flash
lack of Time Lapse mode
resolution not great (12MP)
display is not selfie friendly
wide angle not the best (32mm)
somewhat slow max aperture (f2.9)
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Landscape Comparison

Olympus E-M5 III Landscape photography info
Pentax E85 Landscape photography info
77
manual focus
swap lenses (Micro Four Thirds mount)
screen size is decent (3 inch)
built in image stabilization (Sensor based 5-axis)
decent sensor resolution (20MP)
decent sensor size (Four Thirds)
great high ISO (25,600)
delivers RAW files
environment proof
not so great battery life (310 per charge)
23
focusing manually not possible
can't change lens (fixed lens mount)
wide angle not the best (32mm)
somewhat slow max aperture (f2.9)
small screen (2.7")
manual mode not possible
lack of image stabilization
resolution not great (12 megapixels)
small sensor (1/2.3")
doesn't have RAW format
lack of Time Lapse mode
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Vlogging Comparison

Vlogging with Olympus E-M5 III
Vlogging with Pentax E85
84
display is selfie friendly
touchscreen enabled
built in image stabilization (Sensor based 5-axis)
offers face detection autofocus
video resolution high (4096 x 2160 pxls)
includes external microphone support
22
wide angle not the best (32mm)
somewhat slow max aperture (f2.9)
display is not selfie friendly
lack of image stabilization
low res video (640 x 480 pxls)
lack of mic support
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Olympus E-M5 III vs Pentax E85 Specifications

Detailed spec comparison table for Olympus E-M5 III and Pentax E85
 Olympus OM-D E-M5 IIIPentax Optio E85
General Information
Brand Olympus Pentax
Model type Olympus OM-D E-M5 III Pentax Optio E85
Type Advanced Mirrorless Small Sensor Compact
Introduced 2019-10-17 2009-09-17
Physical type SLR-style mirrorless Compact
Sensor Information
Processor TruePic VIII -
Sensor type MOS 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 1:1, 4:3, 3:2 and 16:9 4:3 and 16:9
Highest Possible resolution 5184 x 3888 4000 x 3000
Maximum native ISO 25600 3200
Min native ISO 200 80
RAW data
Min enhanced ISO 64 -
Autofocusing
Focus manually
Touch focus
AF continuous
Single AF
Tracking AF
AF selectice
Center weighted AF
Multi area AF
Live view AF
Face detect focusing
Contract detect focusing
Phase detect focusing
Total focus points 121 -
Lens
Lens support Micro Four Thirds fixed lens
Lens zoom range - 32-96mm (3.0x)
Highest aperture - f/2.9-5.2
Macro focusing range - 10cm
Available lenses 107 -
Crop factor 2.1 5.8
Screen
Display type Fully Articulated Fixed Type
Display diagonal 3 inches 2.7 inches
Display resolution 1,040k dots 230k dots
Selfie friendly
Liveview
Touch friendly
Viewfinder Information
Viewfinder Electronic None
Viewfinder resolution 2,360k dots -
Viewfinder coverage 100 percent -
Viewfinder magnification 0.68x -
Features
Min shutter speed 60s 2s
Max shutter speed 1/8000s 1/2000s
Max quiet shutter speed 1/32000s -
Continuous shutter rate 30.0 frames per sec 1.0 frames per sec
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes -
Custom WB
Image stabilization
Inbuilt flash
Flash distance no built-in flash 3.00 m
Flash settings Auto, redeye, fill, off, redeye slow sync, slow sync, 2nd-curtain slow sync, manual -
External flash
AE bracketing
WB bracketing
Max flash synchronize 1/250s -
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 PCM 640 x 480 (30 fps), 320 x 240 (30 fps)
Maximum video resolution 4096x2160 640x480
Video data format MPEG-4, H.264 Motion JPEG
Mic support
Headphone support
Connectivity
Wireless Built-In None
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environment sealing
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 414 gr (0.91 lbs) 145 gr (0.32 lbs)
Physical dimensions 125 x 85 x 50mm (4.9" x 3.3" x 2.0") 93 x 58 x 24mm (3.7" x 2.3" 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 310 pictures -
Battery style Battery Pack -
Battery ID BLN-1 D-LI95
Self timer Yes (2 or 10 secs, custom) Yes (2 or 10 sec)
Time lapse recording
Type of storage SD/SDHC/SDXC (UHS-II supported) SD/SDHC, Internal
Card slots One One
Cost at release $1,199 $0