Olympus PEN E-PL9 vs Sony Alpha A7R III Compare

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Here you can find digital cameras comparison. Pick up with the best rating.

Cameras which are being compared are Mirrorless cameras.

PEN E-PL9 vs Alpha A7R III - Side by side

Learn more about compared cameras specifications below.

Olympus PEN E-PL9 vs Sony Alpha A7R III Specs

PEN E-PL9

  • Introduced in February 2018
  • Mirrorless
  • Sensor: Four Thirds
  • 16 megapixel
  • 8 frames/second
  • 200 – 25600 ISO
  • 3840 x 2160 Video
  • No viewfinder
  • 76.00mm (3.0″) Monitor, articulated
  • Lens mount Micro Four Thirds (MFT)
  • WiFi built-in
  • 117.1 x 68 x 39mm³ (4.6″ x 2.7″ x 1.5″)
  • 380g (12.3 oz.)

All specs: Main page for PEN E-PL9

Alpha A7R III

  • Introduced in October 2017
  • Mirrorless
  • Sensor: Full frame
  • 42 megapixel
  • 10 frames/second
  • 100 – 32000 ISO
  • 3840 x 2160 Video
  • Viewfinder: Elektronic
  • 76.00mm (3.0″) Monitor, articulated
  • Lens mount E Mount
  • WiFi built-in
  • 126.9 x 95.6 x 73.7mm³ (5.0″ x 3.8″ x 2.9″)
  • 657g (21.2 oz.)

All specs: Main page for Alpha A7R III

PEN E-PL9 vs Alpha A7R III Sensors

On the pictures below the sensor areas of cameras are highlighted.

This infographic highlights the sensor areas of both models compared to other common sensor formats:

Advantage: Sony Alpha A7R III

Olympus PEN E-PL9 VS Sony Alpha A7R III Other Specs Comparison

Why is Olympus PEN E-PL9 a better choice

PEN E-PL9

Alpha A7R III
Larger lens selection (3)

80 50
Built-in flash (2)
Weighs less (2)

380g
(12.3 oz.)		 657g
(21.2 oz.)
More portable (2)

311cm³
(20 cu.in.)		 894cm³
(56 cu.in.)

Conclusion: Advantages of the PEN E-PL9 are the larger selection of lenses, the built-in flash and the lower weight than the Alpha A7R III. Another advantage over the Alpha A7R III: the more compact size.

The PEN E-PL9 scores 9 points.

Otherwise why to choose Sony Alpha A7R III

PEN E-PL9

Alpha A7R III
Larger sensor (5)

Four Thirds Full frame
Wider resolution (5, megapixel)

16.10 42.40
Higher speed (4, frames/second)

8 10
Auto Focus points (4)

121 399
Better sensibility (4)

200 – 25600 ISO 100 – 32000 ISO
Better monitor (2, Megapixel)

1.04 1.44
External microphone (2)
Longer battery life (3, photos)

350 650
USB 3.0 (2)
Environmental sealing (2)

Conclusion: Advantages of the Alpha A7R III are the larger sensor, the higher resolution and that the camera is faster. Additional pros for the Sony are the faster and more accurate auto focus, the larger sensitivity and that the display has a higher resolution. A nice touch is the connector for an external microphone, that the battery has more stamina and the support for USB 3.0. HArdly a luxury, given today’s image size and the requirements of 4K video.

Yields 31 points for the Alpha A7R III.

Common Specs for both cameras compared

PEN E-PL9

Alpha A7R III
Sensor cleaning
Image stabilizer
Articulated screen
Touch screen
Video resolution

3840 x 2160 3840 x 2160
WiFi
Olympus PEN E-PL9 VS Sony Alpha A7R III Dimensions

Look at front view of the PEN E-PL9 and Alpha A7R III

Top view of cameras

Total scores

Here’s the total score according to comparison above:

Olympus PEN E-PL9

Sony Alpha A7R III

9
31

We recommend Sony Alpha A7R III as better choice.