Sony A7R III with Olympus E-M1 MIII Comparison

Sony A7R III and Olympus E-M1 MIII Main Features

  • October, 2017
  • February, 2020
  • 42 MP Full frame BSI-CMOS Sensor
  • 20 MP Four Thirds CMOS Sensor
  • 100 - 32000 ISO
  • 200 - 25600 ISO
  • 5-axis Sensor-shift Image Stabilization
  • 5-axis Sensor-shift Image Stabilization
  • 3" Tilting Screen
  • 3" Articulated Screen
  • Electronic Viewfinder
  • Electronic Viewfinder
  • 3686k dot Electronic viewfinder
  • 2360k dot Electronic viewfinder
  • 10.0 fps continuous shooting
  • 60.0 fps continuous shooting
  • 4K 3840 x 2160 video resolution
  • 4K 4096 x 2160 video resolution
  • Built-In Wireless
  • Built-In Wireless
  • 127 x 96 x 74 mm, 657g.
  • 134 x 91 x 69 mm, 580g.
  • Price Category:
  • Price Category:

Sony A7R III Scores


Imaging score
87
Features score
88
Value for money score
99
Portability score
77
Overall score
92

Olympus E-M1 MIII Scores


Imaging score
57
Features score
96
Value for money score
75
Portability score
79
Overall score
82

Olympus OM-D E-M1 Mark III with Sony Alpha A7R III Overview


Let's compare Sony Alpha A7R III with Olympus OM-D E-M1 Mark III. These models are included in the Pro Mirrorless cameras. Sony A7R III was released in 2017, and Olympus E-M1 MIII in 2020. OM-D E-M1 Mark III is newer, which is a plus. Alpha A7R III 3 years older.
The sensor resolution of Alpha A7R III is greater than that of OM-D E-M1 Mark III. The difference of 22 MP is quite a lot. The more megapixels the camera has, the more detailed and clear the picture will be. The number of megapixels will also affect the maximum size of the photos, which then can be printed without loss of quality.
At the second camera (OM-D E-M1 Mark III), the minimum ISO value is lower, which gives more opportunities for shooting in daylight. A larger maximum ISO allows you to take good pictures in the dark. At Sony A7R III, the maximum ISO is greater by 6400. Both cameras have 5-axis Sensor-shift image stabilization. Both cameras feature a 3-inch tilting screen.
Both cameras have a electronic viewfinder. Viewfinder Alpha A7R III has a higher resolution of 3686k dots, OM-D E-M1 Mark III has a resolution of 2360k dots. Burst mode, also called continuous shooting mode, sports mode or continuous high speed mode, is a shooting mode in still cameras. Sony Alpha A7R III has 60.0 fps continuous shooting. Sony Alpha A7R III has 60.0 fps continuous shooting.

General Alpha A7R III OM-D E-M1 Mark III
Brand Sony Olympus
Model Alpha A7R III OM-D E-M1 Mark III
Announced October, 2017 February, 2020
Body Type SLR-style mirrorless SLR-style mirrorless
Lens
Lens Mount Sony E Micro Four Thirds
Manual Focus
Focal Lens Multiplier 1 2
Number of Lenses 116 103
Macro Focus Range n/a n/a
Screen
Screen Size 3" 3"
Screen Type Tilting Articulated
Screen Resolution 1440k pixels 1037k pixels
Touch Screen
Live View
Viewfinder
Viewfinder Electronic Electronic
Viewfinder Resolution 3686
Viewfinder Coverage 100% 100%
Viewfinder Magnification 0.78 0.74
Autofocus
AF Touch
AF Continuous
AF Single
AF Tracking
AF Selective
AF Center
AF Multi Area
AF Live View
AF Face Detection
AF Contrast Detection
AF Phase Detection
Number of Focus Points 425 121
Number of Cross Focus Points 0 121
Photography Features
RAW Support
Min Shutter Speed 1/30 sec 1/60 sec
Max Shutter Speed 1/8000 sec 1/8000 sec
Continuous Shooting 10.0 fps 60.0 fps
Shutter Priority
Aperture Priority
Manual Exposure Mode
Exposure Compensation
Custom White Balance
Image Stabilization
Built-in Flash
Flash Range no built-in flash no built-in flash
Flash Modes Off, Auto, Fill-flash, Slow Sync, Rear Sync, Red-eye reduction, Wireless, Hi-speed sync Redeye, Fill-in, Flash Off, Red-eye Slow sync.(1st curtain), Slow sync.(1st curtain), Slow sync.(2nd curtain), Manual
External Flash
AE Bracketing
AE Bracketing Range ±5 EV ±5 EV
WB Bracketing
Sensor
Sensor Size Full frame Four Thirds
Sensor Type BSI-CMOS CMOS
Sensor Dimensions 35.9 x 24 mm mm
Sensor Area 861.6 mm² 0.0 mm²
Sensor Resolution 42 MP 20 MP
Max Image Resolution 7952 x 5304 5184 x 3888
Max Native ISO 32000 25600
Min Native ISO 100 200
Max Boosted ISO 102400 0
Min Boosted ISO 50 64
Video Features
4K
Max Video Resolution 3840 x 2160 4096 x 2160
Video Formats MPEG-4, AVCHD, XAVC S MPEG-4, H.264
Timelapse Recording
Microphone Port
Headphone Port
Exposure Modes
Multi-Segment
Average
Spot
Partial
AF-Area
Center Weighted
Connectivity
GPS None None
Wireless Connectivity Built-In Built-In
Bluetooth
HDMI
USB USB 3.1 Gen 1(5 GBit/sec) USB 3.1 Gen 1 (5 GBit/sec)
Battery
Battery Life 650 shots 420 shots
Battery Type Battery Pack Battery Pack
Battery Model NP-FZ100 BLH-1
Physical
Weight 657 g 580 g
Physical Dimensions 127 x 96 x 74 mm 134 x 91 x 69 mm
Environmental Sealing
Water Proof
Dust Proof
Shock Proof
Crush Proof
Freeze Proof
Shock Proof
Storage
Storage Type Two SD/SDHC/SDXC slots (UHS-II support on one) Dual SD/SDHC/SDXC slots (UHS-II on first slot)
Storage Slots 2 2
Other Features
Self Timer
Selfie Friendly

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