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Olympus E-M1 II vs Sony A7c

Portability
68
Imaging
59
Features
93
Overall
72
Olympus OM-D E-M1 Mark II front
 
Sony Alpha A7c front
Portability
78
Imaging
76
Features
88
Overall
80

Olympus E-M1 II vs Sony A7c Key Specs

Olympus E-M1 II
(Full Review)
  • 20MP - Four Thirds Sensor
  • 3" Fully Articulated Display
  • ISO 200 - 25600
  • Sensor based 5-axis Image Stabilization
  • No Anti-Alias Filter
  • 1/8000s Maximum Shutter
  • 4096 x 2160 video
  • Micro Four Thirds Mount
  • 574g - 134 x 91 x 67mm
  • Announced September 2016
  • Replaced the Olympus E-M1
  • Refreshed by Olympus E-M1 III
Sony A7c
(Full Review)
  • 24MP - Full frame Sensor
  • 3" Fully Articulated Screen
  • ISO 100 - 51200 (Raise to 204800)
  • Sensor based 5-axis Image Stabilization
  • 3840 x 2160 video
  • Sony E Mount
  • 509g - 124 x 71 x 60mm
  • Released September 2020
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Olympus E-M1 II vs Sony A7c Overview

Let's look closer at the Olympus E-M1 II vs Sony A7c, former is a Pro Mirrorless while the latter is a Advanced Mirrorless by manufacturers Olympus and Sony. The sensor resolution of the E-M1 II (20MP) and the A7c (24MP) is pretty well matched but the E-M1 II (Four Thirds) and A7c (Full frame) have totally different sensor sizing.

Photography Glossary

The E-M1 II was brought out 5 years prior to the A7c which is quite a big difference as far as tech is concerned. Each of the cameras have different body design with the Olympus E-M1 II being a SLR-style mirrorless camera and the Sony A7c being a Rangefinder-style mirrorless camera.

Before getting right into a comprehensive comparison, here is a quick highlight of how the E-M1 II matches up versus the A7c when considering portability, imaging, features and an overall mark.

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Reasons to pick Olympus E-M1 II over the Sony A7c

 E-M1 II A7c 
Screen resolution1037k922kCrisper screen (+115k dot)

Reasons to pick Sony A7c over the Olympus E-M1 II

 A7c E-M1 II 
ReleasedSeptember 2020September 2016Newer by 48 months

Common features in the Olympus E-M1 II and Sony A7c

 E-M1 II A7c 
Manual focus Very precise focusing
Screen typeFully ArticulatedFully articulatedFully Articulated screen
Screen dimensions3"3"Equal screen measurement
Selfie screen Both good for selfies
Touch friendly screen Quickly navigate

Olympus E-M1 II vs Sony A7c Physical Comparison

When you are planning to travel with your camera often, you will want to factor in its weight and measurements. The Olympus E-M1 II has external measurements of 134mm x 91mm x 67mm (5.3" x 3.6" x 2.6") and a weight of 574 grams (1.27 lbs) and the Sony A7c has proportions of 124mm x 71mm x 60mm (4.9" x 2.8" x 2.4") and a weight of 509 grams (1.12 lbs).

Analyze the Olympus E-M1 II vs Sony A7c in our completely new Camera & Lens Size Comparison Tool. Camera Size Comparison with Lenses

Take into account, the weight of an ILC will vary dependant on the lens you choose at that moment. Underneath is a front view scale comparison of the E-M1 II against the A7c.

Olympus E-M1 II vs Sony A7c size comparison

Looking at size and weight, the portability score of the E-M1 II and A7c is 68 and 78 respectively.

Olympus E-M1 II vs Sony A7c top view buttons comparison

Olympus E-M1 II vs Sony A7c Sensor Comparison

Usually, it is very difficult to see the difference between sensor dimensions merely by checking specs. The pic here will help give you a stronger sense of the sensor measurements in the E-M1 II and A7c.

As you can plainly see, each of the cameras provide different resolutions and different sensor dimensions. The E-M1 II because of its tinier sensor will make shooting shallower DOF more difficult and the Sony A7c will resolve greater detail having its extra 4MP. Higher resolution will also enable you to crop pictures more aggressively. The more aged E-M1 II is going to be behind with regard to sensor innovation.

Olympus E-M1 II vs Sony A7c sensor size comparison

Olympus E-M1 II vs Sony A7c Screen and ViewFinder

Olympus E-M1 II vs Sony A7c Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Portrait photography with Olympus E-M1 II
Portrait photography with Sony A7c
75
manual focus
good MP (20MP)
sensor size is good (Four Thirds)
features face detection focus
exports RAW files
78
manual focus
resolution is good (24MP)
sensor size is big (Full frame)
includes face detect focus
saves RAW formats
external flash not possible
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Street Comparison

Olympus E-M1 II Street photography highlights
Sony A7c Street photography highlights
78
screen articulates
built in image stabilization (Sensor based 5-axis)
sensor size is good (Four Thirds)
exports RAW files
comes with focus by touch
weather sealing
lighter than others (574 grams)
good ISO range (25,600)
85
has image stabilization (Sensor based 5-axis)
sensor size is big (Full frame)
saves RAW formats
comes with focus via touch
weather sealing
very good ISO range (51,200)
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Sports Comparison

Sports photography with Olympus E-M1 II
Sports photography with Sony A7c
74
great max shutter speed (1/8,000s)
quiet shooting (1/32,000s)
max fps high (60.0 frames per second)
built in image stabilization (Sensor based 5-axis)
good MP (20 megapixels)
sensor size is good (Four Thirds)
features tracking autofocus
weather sealing
comes with phase detect auto focus
not so great battery power (350 per charge)
88
quiet mode (1/8,000 seconds)
has image stabilization (Sensor based 5-axis)
resolution is good (24 megapixels)
sensor size is big (Full frame)
includes tracking focus
weather sealing
better than average battery (740 CIPA)
comes with phase detect auto focus
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Travel Comparison

Olympus E-M1 II Travel photography factors
Sony A7c Travel photography factors
72
lighter than others (574g)
weather sealing
comes with focus by touch
good MP (20MP)
screen is selfie friendly
not so great battery power (350 shots)
86
better than average battery (740 shots)
weather sealing
connects via bluetooth
comes with focus via touch
resolution is good (24 megapixels)
selfie friendly display
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Landscape Comparison

Landscape photography with Olympus E-M1 II
Landscape photography with Sony A7c
76
manual focus
interchangeable lenses (Micro Four Thirds mount)
pretty good screen size (3")
built in image stabilization (Sensor based 5-axis)
good MP (20MP)
sensor size is good (Four Thirds)
no anti aliasing filter
good ISO range (25,600)
exports RAW files
weather sealing
has dual storage slots
not so great battery power (350 CIPA)
88
manual focus
switch lenses (Sony E mount)
screen is a good size (3 inch)
has image stabilization (Sensor based 5-axis)
resolution is good (24MP)
sensor size is big (Full frame)
very good ISO range (51,200)
saves RAW formats
weather sealing
better than average battery (740 CIPA)
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Vlogging Comparison

Olympus E-M1 II Vlogging factors
Sony A7c Vlogging factors
79
screen is selfie friendly
has touchscreen
built in image stabilization (Sensor based 5-axis)
features face detection focus
great video quality (4096 x 2160 pixels)
does have external mic jack
lighter than others (574 grams)
86
selfie friendly display
screen is touchscreen
has image stabilization (Sensor based 5-axis)
includes face detect focus
video resolution high (3840 x 2160 pixels)
does have microphone port
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Olympus E-M1 II vs Sony A7c Specifications

Detailed spec comparison table for Olympus E-M1 II and Sony A7c
 Olympus OM-D E-M1 Mark IISony Alpha A7c
General Information
Brand Name Olympus Sony
Model type Olympus OM-D E-M1 Mark II Sony Alpha A7c
Type Pro Mirrorless Advanced Mirrorless
Announced 2016-09-19 2020-09-14
Body design SLR-style mirrorless Rangefinder-style mirrorless
Sensor Information
Processor TruePic VIII -
Sensor type CMOS BSI-CMOS
Sensor size Four Thirds Full frame
Sensor measurements 17.4 x 13mm 35.8 x 23.8mm
Sensor surface area 226.2mm² 852.0mm²
Sensor resolution 20MP 24MP
Anti alias filter
Aspect ratio 4:3 3:2 and 16:9
Highest resolution 5184 x 3888 6000 x 4000
Highest native ISO 25600 51200
Highest boosted ISO - 204800
Lowest native ISO 200 100
RAW data
Lowest boosted ISO 64 50
Autofocusing
Manual focusing
AF touch
AF continuous
Single AF
Tracking AF
AF selectice
AF center weighted
Multi area AF
Live view AF
Face detect AF
Contract detect AF
Phase detect AF
Total focus points 121 693
Lens
Lens support Micro Four Thirds Sony E
Available lenses 107 122
Crop factor 2.1 1
Screen
Display type Fully Articulated Fully articulated
Display size 3 inches 3 inches
Resolution of display 1,037 thousand dot 922 thousand dot
Selfie friendly
Liveview
Touch screen
Viewfinder Information
Viewfinder type Electronic Electronic
Viewfinder resolution 2,360 thousand dot 2,360 thousand dot
Viewfinder coverage 100% 100%
Viewfinder magnification 0.74x 0.59x
Features
Slowest shutter speed 60 secs 30 secs
Maximum shutter speed 1/8000 secs 1/4000 secs
Maximum quiet shutter speed 1/32000 secs 1/8000 secs
Continuous shooting speed 60.0 frames/s 10.0 frames/s
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation Yes Yes
Set WB
Image stabilization
Inbuilt flash
Flash distance 9.10 m (at ISO 100) no built-in flash
Flash modes Redeye, Fill-in, Flash Off, Red-eye Slow sync.(1st curtain), Slow sync.(1st curtain), Slow sync.(2nd curtain), Manual no built-in flash
Hot shoe
Auto exposure bracketing
WB bracketing
Maximum flash sync 1/250 secs -
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Supported video resolutions 4096 x 2160 @ 24p / 237 Mbps, MOV, H.264, Linear PCM, 3840 x 2160 @ 30p / 102 Mbps, MOV, H.264, Linear PCM 3840 x 2160 @ 30p / 100 Mbps, XAVC S, MP4, H.264, Linear PCM
Highest video resolution 4096x2160 3840x2160
Video data format MOV, H.264 MPEG-4, XAVC S, H.264
Microphone jack
Headphone jack
Connectivity
Wireless Built-In Built-In
Bluetooth
NFC
HDMI
USB USB 3.0 (5 GBit/sec) USB 3.2 Gen 1 (5 GBit/sec)
GPS None None
Physical
Environment seal
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 574g (1.27 lbs) 509g (1.12 lbs)
Physical dimensions 134 x 91 x 67mm (5.3" x 3.6" x 2.6") 124 x 71 x 60mm (4.9" x 2.8" x 2.4")
DXO scores
DXO All around rating 80 not tested
DXO Color Depth rating 23.7 not tested
DXO Dynamic range rating 12.8 not tested
DXO Low light rating 1312 not tested
Other
Battery life 350 pictures 740 pictures
Form of battery Battery Pack Battery Pack
Battery ID BLH-1 NP-FZ100
Self timer Yes (2 or 12 secs, custom) Yes (2 or 10 sec; continuous (3 or 5 exposures))
Time lapse feature
Storage media Dual SD/SDHC/SDXC slots SD/SDHC/SDXC card (UHS-II supported)
Storage slots Two 1
Pricing at launch $1,700 $1,800