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Canon EOS M50 vs Sony Alpha A7R III

We compare the Canon EOS M50 to the Sony Alpha A7R III: Which digital camera has the better sensor? Which has the better viewfinder or monitor? Which is faster?

Both cameras belong to the Mirrorless category.

Here are both models side by side. The Canon EOS M50 is on the left, the Sony Alpha A7R III on the right:

EOS M50 vs Alpha A7R III - Side by side

For a more detailed size comparison, see the section further down below.

Canon EOS M50 vs Sony Alpha A7R III: Specifications at a glance

EOS M50

  • Introduced in February 2018
  • Mirrorless
  • Sensor: APS-C
  • 24 megapixel
  • 10 frames/second
  • 100 - 25600 ISO
  • 3840 x 2160 Video
  • Viewfinder: Elektronic
  • 80.00mm (3.1") Monitor, articulated
  • Lens mount EF-M
  • WiFi built-in
  • 116.3 x 88.1 x 58.7mm³ (4.6" x 3.5" x 2.3")
  • 387g (12.5 oz.)

All specs: Main page for EOS M50

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

Our advice: From our own experience, we recommend SanDisk memory cards. The SanDisk Extreme Pro is fast enough for high-speed image sequences and 4K video:

Memory card for EOS M50 and Alpha A7R III

The 64 GB Extreme will take up to 90 minutes of super high-res 4K video. For Full HD video we recommend the SanDisk Ultra.

EOS M50 vs Alpha A7R III: The sensors

The EOS M50 features a APS-C sized sensor, while the Alpha A7R III uses a Full frame sensor.

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

Infographic: EOS M50 and Alpha A7R III sensor area comparison

Note: 1-Euro coin for scale; the coin at 23.25mm diameter is slightly smaller than a US quarter.

Featuring an area of 856mm² (1.37 sq.in.), the Alpha A7R III's sensor is a lot larger that the chip that the EOS M50 employs at 332mm² (0.53 sq.in.). A larger sensor can produce images of interiors or at night that have less noise and better contrast than photos shot with APS-C sized chips.

Advantage: Sony Alpha A7R III

EOS M50 vs Alpha A7R III: The viewfinders

The EOS M50 uses an electronic viewfinder with a resolution of 2.36 megapixel. The magnifcation is c. 0.60x.

The Alpha A7R III features an electronic viewfinder with a resolution of 3.69 megapixel and a magnification of around 0.78x.

This infographic illustrates the viewfinder magnifications of both cameras. The black area represents a magnification of 1x, corresponding to natural size; indicated in red is a magnification of 0.85x, the highest value in a any camera on the market today.

EOS M50 (0.60x)

Alpha A7R III (0.78x)

Simulated viewfinder of the EOS M50Simulated viewfinder of the Alpha A7R III

Advantage: Sony Alpha A7R III

Comparing features and further specs of both cameras, data for the Canon EOS M50 on the left, the Sony Alpha A7R III in the right column:

Advantage Canon EOS M50...

(Point weight and unit, if applicable, in parentheses)

EOS M50

Alpha A7R III

Built-in flash (2)
Weighs less (2)387g
(12.5 oz.)
657g
(21.2 oz.)
More portable (2)601cm³
(38 cu.in.)
894cm³
(56 cu.in.)

Conclusion: Advantages of the EOS M50 are the built-in flash, the lower weight than the Alpha A7R III and the more compact size.

The EOS M50 scores 6 points.

...and here's where the Sony Alpha A7R III has an edge...

(Point weight and unit, if applicable, in parentheses)

EOS M50

Alpha A7R III

Larger sensor (5)APS-CFull frame
Higher resolution (5, megapixel)24.1042.40
More AF points (4)143399
Sensitivity (4)100 - 25600 ISO100 - 32000 ISO
Better viewfinder (4, Megapixel)2.363.69
Larger lens selection (3)750
Image stabilizer (3)
Better monitor (2, Megapixel)1.041.44
Longer battery life (3, photos)235650
USB 3.0 (2)
Environmentally sealed (2)

Conclusion: Advantages of the Alpha A7R III are the larger sensor, the higher resolution and the faster and more accurate auto focus. Additional pros for the Sony are the larger sensitivity, the better viewfinder and the larger selection of lenses. We also like the optical image stabilizer, that the display has a higher resolution and that the battery has more stamina. Another advantage over the EOS M50: the support for USB 3.0. HArdly a luxury, given today's image size and the requirements of 4K video.

Yields 35 points for the Alpha A7R III.

...and here's what both have in common

EOS M50

Alpha A7R III

Speed (frames/second)1010
Sensor cleaning
Monitor articulated
Touch screen
Video resolution3840 x 21603840 x 2160
External microphone
WiFi

Comparing the dimensions of both cameras; Canon EOS M50 again on the left, Sony Alpha A7R III on the right:

Front view of the EOS M50 and the Alpha A7R III...

EOS M50 und Alpha A7R III, front viewEOS M50 und Alpha A7R III, front view

...and here we see the Canon and the Sony from above:

EOS M50 und Alpha A7R III, view from aboveEOS M50 und Alpha A7R III, view from above

Our recommendation

Comparing features and specifications of both cameras yields the following score:

Canon EOS M50

Sony Alpha A7R III

6
35

CameraCreativ recommends the Sony Alpha A7R III.

Our rating of the Canon EOS M50

No rating available.

Our rating of the Sony Alpha A7R III

No rating available.

Source of specifications and product images: Manufacturer. This page was generated by an experimental computer program. Errors and omissions excepted.

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