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Olympus E-M10 III vs Pentax E85

Portability
80
Imaging
55
Features
75
Overall
63
Olympus OM-D E-M10 Mark III front
 
Pentax Optio E85 front
Portability
95
Imaging
35
Features
10
Overall
25

Olympus E-M10 III vs Pentax E85 Key Specs

Olympus E-M10 III
(Full Review)
  • 16MP - Four Thirds Sensor
  • 3" Tilting Display
  • ISO 200 - 25600
  • Sensor based 5-axis Image Stabilization
  • 3840 x 2160 video
  • Micro Four Thirds Mount
  • 410g - 122 x 84 x 50mm
  • Released August 2017
  • Superseded the Olympus E-M10 II
  • Replacement is Olympus E-M10 IV
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
  • Introduced September 2009
Photography Glossary

Olympus E-M10 III vs Pentax E85 Overview

Lets take a deeper look at the Olympus E-M10 III vs Pentax E85, one being a Entry-Level Mirrorless and the other is a Small Sensor Compact by manufacturers Olympus and Pentax. There is a huge difference among the resolutions of the E-M10 III (16MP) and E85 (12MP) and the E-M10 III (Four Thirds) and E85 (1/2.3") offer different sensor sizes.

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The E-M10 III was brought out 8 years later than the E85 and that is a fairly significant gap as far as camera tech is concerned. Both of the cameras feature different body design with the Olympus E-M10 III being a SLR-style mirrorless camera and the Pentax E85 being a Compact camera.

Before delving straight to a more detailed comparison, here is a brief summary of how the E-M10 III matches up vs the E85 when considering portability, imaging, features and an overall rating.

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Reasons to pick Olympus E-M10 III over the Pentax E85

 E-M10 III E85 
IntroducedAugust 2017September 2009Fresher by 97 months
Focus manually Very accurate focusing
Display typeTiltingFixed Tilting display
Display size3"2.7"Larger display (+0.3")
Display resolution1040k230kSharper display (+810k dot)
Touch friendly display Easily navigate

Reasons to pick Pentax E85 over the Olympus E-M10 III

 E85 E-M10 III 

Common features in the Olympus E-M10 III and Pentax E85

 E-M10 III E85 
Selfie screen Neither comes with selfie screen

Olympus E-M10 III vs Pentax E85 Physical Comparison

If you're planning to carry your camera often, you will have to think about its weight and proportions. The Olympus E-M10 III comes with exterior dimensions of 122mm x 84mm x 50mm (4.8" x 3.3" x 2.0") with a weight of 410 grams (0.90 lbs) and the Pentax E85 has measurements of 93mm x 58mm x 24mm (3.7" x 2.3" x 0.9") accompanied by a weight of 145 grams (0.32 lbs).

See the Olympus E-M10 III vs Pentax E85 in the all new Camera and Lens Size Comparison Tool. Camera Size Comparison with Lenses

Keep in mind, the weight of an Interchangeable Lens Camera will change depending on the lens you have at that moment. Here is a front view overall size comparison of the E-M10 III and the E85.

Olympus E-M10 III vs Pentax E85 size comparison

Taking into consideration size and weight, the portability score of the E-M10 III and E85 is 80 and 95 respectively.

Olympus E-M10 III vs Pentax E85 top view buttons comparison

Olympus E-M10 III vs Pentax E85 Sensor Comparison

Usually, it can be hard to visualize the contrast in sensor sizing just by seeing a spec sheet. The visual here will give you a far better sense of the sensor dimensions in the E-M10 III and E85.

Clearly, each of these cameras come with different megapixels and different sensor sizing. The E-M10 III because of its larger sensor is going to make shooting shallower depth of field simpler and the Olympus E-M10 III will show more detail having its extra 4 Megapixels. Greater resolution will make it easier to crop photos a good deal more aggressively. The more modern E-M10 III provides a benefit when it comes to sensor innovation.

Olympus E-M10 III vs Pentax E85 sensor size comparison

Olympus E-M10 III vs Pentax E85 Screen and ViewFinder

Olympus E-M10 III vs Pentax E85 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Olympus E-M10 III Portrait photography details
Pentax E85 Portrait photography details
73
you can focus manually
good megapixels (16 megapixels)
nice sensor size (Four Thirds)
provides face detect autofocus
saves RAW formats
21
manual focus not available
no manual exposure
cannot use external flash
megapixel count low (12MP)
sensor is very small (1/2.3")
no RAW files
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Street Comparison

Olympus E-M10 III Street photography advice
Pentax E85 Street photography advice
77
screen tilts up and down
built in image stabilization (Sensor based 5-axis)
nice sensor size (Four Thirds)
saves RAW formats
includes touch to focus
great ISO range (25,600)
more heavy than competition in class (410 grams)
47
no articulating screen
does not have image stabilization
sensor is very small (1/2.3")
no RAW files
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Sports Comparison

Sports photography with Olympus E-M10 III
Sports photography with Pentax E85
69
quiet shutter (1/16,000s)
built in image stabilization (Sensor based 5-axis)
good megapixels (16 megapixels)
nice sensor size (Four Thirds)
provides tracking focus
no phase detect autofocus
17
slow frames per second (1.0 fps)
lack of shutter priority mode
does not have image stabilization
megapixel count low (12 megapixels)
sensor is very small (1/2.3")
no phase detect AF
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Travel Comparison

Olympus E-M10 III Travel photography highlights
Pentax E85 Travel photography highlights
67
includes touch to focus
good megapixels (16MP)
built-in flash
more heavy than competition in class (410 grams)
doesn't posses selfie friendly display
51
built-in flash
no Time Lapse function
megapixel count low (12 megapixels)
doesn't posses selfie friendly display
wide angle not the best (32mm)
slow max aperture (f2.9)
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Landscape Comparison

Olympus E-M10 III Landscape photography highlights
Pentax E85 Landscape photography highlights
80
you can focus manually
switch lenses (Micro Four Thirds mount)
nice screen size (3 inches)
built in image stabilization (Sensor based 5-axis)
good megapixels (16MP)
nice sensor size (Four Thirds)
great ISO range (25,600)
saves RAW formats
23
manual focus not available
lens is fixed (fixed lens mount)
wide angle not the best (32mm)
slow max aperture (f2.9)
small screen (2.7 inches)
no manual exposure
does not have image stabilization
megapixel count low (12MP)
sensor is very small (1/2.3")
no RAW files
no Time Lapse function
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Vlogging Comparison

Olympus E-M10 III Vlogging highlights
Pentax E85 Vlogging highlights
32
touch screen
built in image stabilization (Sensor based 5-axis)
provides face detect autofocus
video resolution high (3840 x 2160 pixels)
doesn't posses selfie friendly display
does not have microphone support
more heavy than competition in class (410 grams)
22
wide angle not the best (32mm)
slow max aperture (f2.9)
doesn't posses selfie friendly display
does not have image stabilization
video res low (640 x 480 pixels)
no external mic support
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Olympus E-M10 III vs Pentax E85 Specifications

Detailed spec comparison table for Olympus E-M10 III and Pentax E85
 Olympus OM-D E-M10 Mark IIIPentax Optio E85
General Information
Brand Olympus Pentax
Model type Olympus OM-D E-M10 Mark III Pentax Optio E85
Type Entry-Level Mirrorless Small Sensor Compact
Released 2017-08-31 2009-09-17
Physical type SLR-style mirrorless Compact
Sensor Information
Powered by TruePic VIII -
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 16MP 12MP
Anti alias filter
Aspect ratio 4:3 4:3 and 16:9
Maximum resolution 4608 x 3456 4000 x 3000
Maximum native ISO 25600 3200
Lowest native ISO 200 80
RAW images
Lowest boosted ISO 100 -
Autofocusing
Manual focusing
Touch to focus
Autofocus continuous
Autofocus single
Tracking autofocus
Autofocus selectice
Autofocus center weighted
Multi area autofocus
Live view autofocus
Face detect autofocus
Contract detect autofocus
Phase detect autofocus
Total focus points 121 -
Lens
Lens support Micro Four Thirds fixed lens
Lens zoom range - 32-96mm (3.0x)
Maximum aperture - f/2.9-5.2
Macro focusing distance - 10cm
Number of lenses 107 -
Focal length multiplier 2.1 5.8
Screen
Type of display Tilting Fixed Type
Display sizing 3" 2.7"
Display resolution 1,040 thousand dots 230 thousand dots
Selfie friendly
Liveview
Touch capability
Viewfinder Information
Viewfinder type Electronic None
Viewfinder resolution 2,360 thousand dots -
Viewfinder coverage 100% -
Viewfinder magnification 0.62x -
Features
Lowest shutter speed 60 secs 2 secs
Highest shutter speed 1/4000 secs 1/2000 secs
Highest quiet shutter speed 1/16000 secs -
Continuous shooting rate 8.6 frames/s 1.0 frames/s
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes -
Custom white balance
Image stabilization
Integrated flash
Flash distance 5.80 m (at ISO 100) 3.00 m
Flash options Auto, redeye, slow sync, 2nd-curtain slow sync, redeye slow sync, fill-in, manual, off -
External flash
AEB
White balance bracketing
Highest flash synchronize 1/250 secs -
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Supported video resolutions 3840 x 2160 @ 30p / 102 Mbps, MOV, H.264, Linear PCM 640 x 480 (30 fps), 320 x 240 (30 fps)
Maximum video resolution 3840x2160 640x480
Video file 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
Environmental sealing
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 410 gr (0.90 lbs) 145 gr (0.32 lbs)
Physical dimensions 122 x 84 x 50mm (4.8" x 3.3" x 2.0") 93 x 58 x 24mm (3.7" x 2.3" x 0.9")
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 330 photos -
Battery style Battery Pack -
Battery ID BLS-50 D-LI95
Self timer Yes (2 or 12 secs, custom) Yes (2 or 10 sec)
Time lapse recording
Storage type SD/SDHC/SDXC (UHS-I/II supported) SD/SDHC, Internal
Card slots 1 1
Retail cost $650 $0