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Olympus E-M10 III vs Sony A100

Portability
80
Imaging
55
Features
75
Overall
63
Olympus OM-D E-M10 Mark III front
 
Sony Alpha DSLR-A100 front
Portability
64
Imaging
49
Features
38
Overall
44

Olympus E-M10 III vs Sony A100 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
  • Revealed August 2017
  • Older Model is Olympus E-M10 II
  • Updated by Olympus E-M10 IV
Sony A100
(Full Review)
  • 10MP - APS-C Sensor
  • 2.5" Fixed Screen
  • ISO 100 - 1600
  • Sensor based Image Stabilization
  • No Video
  • Sony/Minolta Alpha Mount
  • 638g - 133 x 95 x 71mm
  • Released July 2006
  • Superseded the Konica Minolta 5D
  • Updated by Sony A550
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Olympus E-M10 III vs Sony A100 Overview

In this article, we will be contrasting the Olympus E-M10 III versus Sony A100, former being a Entry-Level Mirrorless while the latter is a Entry-Level DSLR by competitors Olympus and Sony. There exists a sizable gap among the image resolutions of the E-M10 III (16MP) and A100 (10MP) and the E-M10 III (Four Thirds) and A100 (APS-C) feature totally different sensor size.

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The E-M10 III was brought out 11 years later than the A100 and that is a fairly significant difference as far as camera technology is concerned. Each of these cameras offer different body type with the Olympus E-M10 III being a SLR-style mirrorless camera and the Sony A100 being a Compact SLR camera.

Before we go through a full comparison, below is a quick introduction of how the E-M10 III scores against the A100 with regard to portability, imaging, features and an overall grade.

Photography Glossary
	
	

Reasons to pick Olympus E-M10 III over the Sony A100

 E-M10 III A100 
ReleasedAugust 2017July 2006More recent by 135 months
Screen typeTiltingFixed Tilting screen
Screen sizing3"2.5"Bigger screen (+0.5")
Screen resolution1040k230kClearer screen (+810k dot)
Touch friendly screen Quickly navigate

Reasons to pick Sony A100 over the Olympus E-M10 III

 A100 E-M10 III 

Common features in the Olympus E-M10 III and Sony A100

 E-M10 III A100 
Manually focus Very exact focusing
Selfie screen Lacking selfie screen

Olympus E-M10 III vs Sony A100 Physical Comparison

In case you're planning to lug around your camera often, you'll need to factor its weight and measurements. The Olympus E-M10 III has got outer dimensions of 122mm x 84mm x 50mm (4.8" x 3.3" x 2.0") along with a weight of 410 grams (0.90 lbs) and the Sony A100 has proportions of 133mm x 95mm x 71mm (5.2" x 3.7" x 2.8") with a weight of 638 grams (1.41 lbs).

Contrast the Olympus E-M10 III versus Sony A100 in our brand new Camera plus Lens Size Comparison Tool. Camera Size Comparison with Lenses

Bear in mind, the weight of an ILC will differ dependant on the lens you choose at that moment. Underneath is the front view scale comparison of the E-M10 III against the A100.

Olympus E-M10 III vs Sony A100 size comparison

Looking at dimensions and weight, the portability rating of the E-M10 III and A100 is 80 and 64 respectively.

Olympus E-M10 III vs Sony A100 top view buttons comparison

Olympus E-M10 III vs Sony A100 Sensor Comparison

Typically, its hard to envision the difference in sensor measurements purely by going through specs. The photograph below will give you a greater sense of the sensor sizes in the E-M10 III and A100.

All in all, both of these cameras enjoy different resolutions and different sensor measurements. The E-M10 III featuring a smaller sensor will make shooting bokeh trickier and the Olympus E-M10 III will show greater detail having its extra 6MP. Higher resolution can also enable you to crop pictures far more aggressively. The younger E-M10 III will have an edge when it comes to sensor technology.

Olympus E-M10 III vs Sony A100 sensor size comparison

Olympus E-M10 III vs Sony A100 Screen and ViewFinder

Olympus E-M10 III vs Sony A100 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Olympus E-M10 III Portrait photography advice
Sony A100 Portrait photography advice
73
focusing manually
good megapixels (16 megapixels)
decent sensor size (Four Thirds)
comes with face detect focus
supports RAW files
53
has manual focus
sensor size is decent (APS-C)
supports RAW formats
no liveview
low megapixels (10 megapixels)
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Street Comparison

Street photography with Olympus E-M10 III
Street photography with Sony A100
77
screen tilts
has image stabilization (Sensor based 5-axis)
decent sensor size (Four Thirds)
supports RAW files
boasts focus via touch
very good high ISO (25,600)
more heavy than average in class (410 grams)
65
image stabilization (Sensor based)
sensor size is decent (APS-C)
supports RAW formats
no articulating screen
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Sports Comparison

Sports photography with Olympus E-M10 III
Sports photography with Sony A100
69
quiet mode (1/16,000 seconds)
has image stabilization (Sensor based 5-axis)
good megapixels (16 megapixels)
decent sensor size (Four Thirds)
comes with tracking focus
lacks phase detect auto focus
49
image stabilization (Sensor based)
sensor size is decent (APS-C)
supports phase detect auto focus
no liveview
painfully slow continuous shooting (3.0 fps)
low megapixels (10 megapixels)
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Travel Comparison

Olympus E-M10 III Travel photography highlights
Sony A100 Travel photography highlights
67
boasts focus via touch
good megapixels (16 megapixels)
flash built-in
more heavy than average in class (410g)
display isn't selfie friendly
45
has built in flash
doesn't have Time Lapse function
low megapixels (10MP)
does not offer selfie friendly display
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Landscape Comparison

Olympus E-M10 III Landscape photography features
Sony A100 Landscape photography features
80
focusing manually
interchangeable lenses (Micro Four Thirds mount)
screen size is good (3 inch)
has image stabilization (Sensor based 5-axis)
good megapixels (16 megapixels)
decent sensor size (Four Thirds)
very good high ISO (25,600)
supports RAW files
53
has manual focus
switch lenses (Sony/Minolta Alpha mount)
image stabilization (Sensor based)
sensor size is decent (APS-C)
supports RAW formats
screen is small (2.5")
no liveview
low megapixels (10 megapixels)
doesn't have Time Lapse function
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Vlogging Comparison

Olympus E-M10 III Vlogging factors
Sony A100 Vlogging factors
32
touchscreen functionality
has image stabilization (Sensor based 5-axis)
comes with face detect focus
great video quality (3840 x 2160 resolution)
display isn't selfie friendly
missing microphone port
more heavy than average in class (410 grams)
9
lack of video recording
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Olympus E-M10 III vs Sony A100 Specifications

Detailed spec comparison table for Olympus E-M10 III and Sony A100
 Olympus OM-D E-M10 Mark IIISony Alpha DSLR-A100
General Information
Brand Olympus Sony
Model type Olympus OM-D E-M10 Mark III Sony Alpha DSLR-A100
Type Entry-Level Mirrorless Entry-Level DSLR
Revealed 2017-08-31 2006-07-31
Physical type SLR-style mirrorless Compact SLR
Sensor Information
Chip TruePic VIII -
Sensor type CMOS CCD
Sensor size Four Thirds APS-C
Sensor dimensions 17.4 x 13mm 23.6 x 15.8mm
Sensor area 226.2mm² 372.9mm²
Sensor resolution 16MP 10MP
Anti alias filter
Aspect ratio 4:3 3:2
Highest Possible resolution 4608 x 3456 3872 x 2592
Maximum native ISO 25600 1600
Lowest native ISO 200 100
RAW files
Lowest enhanced ISO 100 -
Autofocusing
Manual focusing
Touch focus
Autofocus continuous
Autofocus single
Autofocus tracking
Selective autofocus
Center weighted autofocus
Multi area autofocus
Autofocus live view
Face detect autofocus
Contract detect autofocus
Phase detect autofocus
Total focus points 121 9
Lens
Lens support Micro Four Thirds Sony/Minolta Alpha
Amount of lenses 107 143
Crop factor 2.1 1.5
Screen
Type of display Tilting Fixed Type
Display sizing 3" 2.5"
Resolution of display 1,040k dots 230k dots
Selfie friendly
Liveview
Touch capability
Viewfinder Information
Viewfinder Electronic Optical (pentamirror)
Viewfinder resolution 2,360k dots -
Viewfinder coverage 100 percent 95 percent
Viewfinder magnification 0.62x 0.55x
Features
Min shutter speed 60s 30s
Max shutter speed 1/4000s 1/4000s
Max quiet shutter speed 1/16000s -
Continuous shutter rate 8.6fps 3.0fps
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes Yes
Change white balance
Image stabilization
Integrated flash
Flash distance 5.80 m (at ISO 100) -
Flash options Auto, redeye, slow sync, 2nd-curtain slow sync, redeye slow sync, fill-in, manual, off Auto, Fill-in, Red-Eye reduction, Slow Sync, Off
Hot shoe
Auto exposure bracketing
White balance bracketing
Max flash synchronize 1/250s 1/160s
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Supported video resolutions 3840 x 2160 @ 30p / 102 Mbps, MOV, H.264, Linear PCM -
Maximum video resolution 3840x2160 None
Video format MPEG-4, H.264 -
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 410 gr (0.90 pounds) 638 gr (1.41 pounds)
Dimensions 122 x 84 x 50mm (4.8" x 3.3" x 2.0") 133 x 95 x 71mm (5.2" x 3.7" x 2.8")
DXO scores
DXO Overall rating not tested 61
DXO Color Depth rating not tested 22.0
DXO Dynamic range rating not tested 11.2
DXO Low light rating not tested 476
Other
Battery life 330 shots -
Battery style Battery Pack -
Battery ID BLS-50 NP-FM55H
Self timer Yes (2 or 12 secs, custom) Yes (2 or 10 sec)
Time lapse feature
Storage type SD/SDHC/SDXC (UHS-I/II supported) Compact Flash (Type I or II)
Card slots 1 1
Cost at release $650 $1,000