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Sony A7S vs Canon 6D Comparison

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Sony A7S

12 MP | Full frame (35.8 x 23.9 mm) CMOS Sensor

Sony A7S
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Canon 6D

20 MP | Full frame (36 x 24 mm) CMOS Sensor

Canon 6D
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Sony A7S vs Canon 6D Comparison Overview

Here we are comparing two cameras with different body types: Sony A7S, which was introduced in April 2014 is a Pro Mirrorless camera with a 12.0MP Full frame sensor whereas Canon 6D, which was introduced in February 2013 is a Advanced DSLR camera with a 20.0MP Full frame sensor. There is 14 months difference between A7S and 6D so we don't expect to see a huge technology difference between these two cameras but it would still give an advantage to younger A7S, especially in sensor tech.

Despite some fundamental differences of these two body types, Mirrorless cameras are becoming serious alternatives to DSLR cameras thanks to their size/weight advantages and recent improvements in their focus speeds , which makes this comparison even more interesting.

Here is a brief look at the main features of Sony A7S and Canon 6D before getting into our more detailed comparison.

Sony A7S Key Specs

  • Announcement Date: 2014-04-06
  • 12MP - Full frame CMOS Sensor
  • ISO 100 - 409600
  • Sony E Mount
  • 3 Tilting Screen
  • 2359k dot Electronic viewfinder
  • 5 fps continuous shooting
  • 4K (UHD) - 3840 x 2160 video resolution
  • 120 fps High-Speed Video
  • Built-in Wireless
  • 489g. 127 x 94 x 48 mm
  • Weather Sealed Body

Canon 6D Key Specs

  • Announcement Date: 2013-02-12
  • 20MP - Full frame CMOS Sensor
  • ISO 100 - 25600 ( expands to 50-102400)
  • Canon EF Mount
  • 3" Fixed Type Screen
  • Optical (pentaprism) viewfinder
  • 4.5 fps continuous shooting
  • Full HD - 1920 x 1080 video resolution
  • Built-in Wireless
  • Built-in GPS
  • 770g. 145 x 111 x 71 mm
  • Weather Sealed Body

Sony A7S was replaced by Sony Alpha 7S II. You may also be interested in these comparisons:
Sony Alpha 7S II vs Sony Alpha A7S
Sony Alpha 7S II vs Canon EOS 6D

Canon 6D was replaced by Canon EOS 6D Mark II. You may also be interested in these comparisons:
Canon EOS 6D Mark II vs Canon EOS 6D
Canon EOS 6D Mark II vs Sony Alpha A7S

Let's read on the following sections in order to better understand in detail how Sony A7S and Canon 6D compares and hopefully end up with enough arguments to decide which one is better for you.

Reasons to choose Sony Alpha A7S over Canon EOS 6D
LCD Screen
Tilting vs Fixed Type Flexible shooting positions
Max ISO
409.600 vs 25.600 1500% higher Max ISO
Number of Focus Points
25 vs 11 14 more focus points
LCD Screen Resolution
1.230k dots vs 1.040k dots 18% higher resolution screen
Viewfinder Coverage
100% vs 97% More accurate viewfinder
Max Mech. Shutter
1/8000s vs 1/4000s faster mechanical shutter
Continuous Shooting
5.0fps vs 4.5fps 0.5 fps faster
Weight
489 g vs 770 g 281 g lighter
Headphone Port
Yes vs No better video control
Color Depth
23.9 vs 23.8 higher color depth
Dynamic Range
13.2 vs 12.1 higher dynamic range
Low Light ISO
3702 vs 2340 better High ISO performance
Sensor Pixel Area
71.24µm2 vs 43.29µm2 64% larger pixel area
Max Video Resolution
3840 x 2160 vs 1920 x 1080 Higher Resolution Video
AE Bracketing Range
±5 EV vs ±3 EV Wide Bracketing range is useful for HDR
NFC Connection
Yes vs No Easy wireless connectivity with compatible devices


Reasons to choose Canon EOS 6D over Sony Alpha A7S
GPS
BuiltIn vs None track your location
Max Sensor Resolution
20 MP vs 12 MP 66% more pixels
Battery Life
1090 shots vs 360 shots 730 more frames with a single charge
Top LCD
Yes vs No Help viewing and changing settings easily

Common Strengths of Sony Alpha A7S and Canon EOS 6D
Wireless Connection
Yes vs Yes Better connectivity
External Flash Shoe
Yes vs Yes Better for flash photography
Viewfinder
Yes (Electronic) vs Yes (Optical) Better framing and control
RAW Support
Yes vs Yes Better image quality
Face Detection Focus
Yes vs Yes very handy for portraits
Microphone Port
Yes vs Yes High quality audio recording option
Environmental Sealing
Yes vs Yes shoot at tough conditions
AE Bracketing
Yes vs Yes Useful for tough lighting conditions and HDR
Dual-axis Electronic Level
Yes vs Yes Level the camera easily in two axis
Smartphone Remote
Yes vs Yes Remote control your camera with a smartphone
Common Weaknesses of Sony Alpha A7S and Canon EOS 6D
In-body Image Stabilization
No vs No No Built-in stabilization
Built-in Flash
No vs No Require external flash
Sony A7S vs Canon 6D: Physical Specs and Body features Comparison

Size and weight is a big decision factor when you are trying to find the ideal camera for your needs. In this section, We are going to illustrate Sony A7S and Canon 6D side-by-side from the front, back and top in their relative dimensions. Sony A7S has external dimensions of 127 x 94 x 48 mm (5 x 3.7 x 1.89″) and weighs 489 g (1.08 lb / 17.25 oz) (including batteries). Canon 6D has external dimensions of 145 x 111 x 71 mm (5.71 x 4.37 x 2.8″) and weighs 770 g (1.70 lb / 27.16 oz) (including batteries).

Below you can see the front view size comparison of Sony A7S and Canon 6D. Sony A7S is clearly the smaller of the two cameras. Its body is 18mm narrower, 17mm shorter and 23mm thinner than Canon 6D.

Sony A7S vs Canon 6D Camera Size Comparison - Front View
Comparison image of Sony A7S and Canon 6D Size, Weight and External Dimensions - Front View

Here is the back view size comparison of Sony A7S and Canon 6D.

Sony A7S vs Canon 6D Camera Size Comparison - Back View
Comparison image of Sony A7S and Canon 6D Size and Weight - Back View

Now lets look at the top view comparison of Sony A7S and Canon 6D.
Sony A7S vs Canon 6D Camera Size Comparison - Top View
Top View Comparison image of Sony A7S and Canon 6D Size

Weight is another important factor especially when deciding on a camera that you want to carry with you all day. Sony A7S is significantly lighter (281g ) than the Canon 6D which may become a big advantage especially on long walking trips.

Also keep in mind that body weight is not the only deciding factor when comparing two interchangeable camera bodies, you have to also take into account the lenses that you will be using with these bodies. Since both Sony A7S and Canon 6D have the same Full frame sized sensor, their lenses for a similar focal length and aperture will be similar in size and weight.

Weight Comparison

DSLR Cameras

A7S
6D
Min
Average
Max
Thickness Comparison

DSLR Cameras

A7S
6D
Min
Average
Max

Weather Sealing

Both A7S and 6D have weather sealings in their body, making them resistant to water and dust.

LCD Screen Size and Features

Sony A7S and Canon 6D's LCD screens has the same diagonal size of 3.

On the other hand, Sony A7S features a Tilting screen where you can change the angle of the screen to make it easier to shoot from waist or over the head levels whereas the Canon 6D has a fixed type screen which provides less flexibility in shooting positions compared to A7S.
Sony A7S vs Canon 6D: Sensor Comparison

Sony A7S has a 12.0MP Full frame (35.8 x 23.9 mm ) sized CMOS sensor and features Bionz X processor. On the other hand, Canon 6D has a 20.0MP Full frame (36 x 24 mm ) sized CMOS sensor and features Digic 5+ processor.

Canon 6D's sensor provides 8MP more than Sony A7S's sensor, which gives a significant advantage in real life. You can print your images larger or crop more freely. On the other hand, please keep in mind that Max sensor resolution is not the only determinant of resolving power. Factors such as the optical elements, low pass filter, pixel size and sensor technology also affects the final resolution of the captured image.

Below you can see the A7S and 6D sensor size comparison.

Sony A7S vs Canon 6D Sensor Size Comparison
Sensor Size and Resolution Comparison image of Sony A7S and Canon 6D Cameras


Sony A7S and Canon 6D have almost the same sensor size so none of them has any significant advantage over other in providing control over depth of field when used with same focal length and aperture.

DxOMark Sensor Scores

Both Sony A7S and Canon 6D sensors have been tested by DxoMark. DxoMark scores camera sensors for color depth (DXO Portrait), dynamic range (DXO Landscape) and low-light sensitivity (DXO Sports), and also gives them an overall score. Of the two cameras that we are comparing, A7S has scored 87, 5 points higher than 6D.

Model Overall Color Depth Dynamic Range Low-light ISO
Sony A7S 87 23.9 bits 13.2 Evs 3702 ISO
Canon 6D 82 23.8 bits 12.1 Evs 2340 ISO
Sony A7S vs Canon 6D Comparison of Available Lenses
Which camera has more lenses?

Number of available lenses is a big decision factor while choosing your interchangeable lens camera. When we look at the available lenses for these two cameras, we see that Canon 6D has an advantage over Sony A7S There are 250 lenses for Canon 6D's Canon EF mount, on the other hand there are only 128 lenses for Sony A7S's Sony E lens mount.

Another important factor is the availability of image stabilization. None of these bodies have sensor based image stabilization so you have to buy lenses with Optical stabilization feature. Currently there are 31 lenses for Sony E mount and 76 lenses for Canon EF mount with IS.

Lens Type # of Sony A7S Lenses # of Canon 6D Lenses
Standard Zoom 12 (9 Full Frame) 22 (22 Full Frame)
Standard Prime 18 (9 Full Frame) 17 (17 Full Frame)
Wideangle Zoom 7 (6 Full Frame) 20 (20 Full Frame)
Wideangle Prime 42 (26 Full Frame) 46 (46 Full Frame)
Telephoto Zoom 9 (7 Full Frame) 50 (50 Full Frame)
Telephoto Prime 18 (14 Full Frame) 43 (43 Full Frame)
SuperZoom 8 (1 Full Frame) 9 (9 Full Frame)
Wideangle Fisheye Prime 2 (0 Full Frame) 3 (3 Full Frame)
Macro Prime 8 (7 Full Frame) 24 (24 Full Frame)
Perspective Control Prime 2 (2 Full Frame) 16 (16 Full Frame)
Telephoto Mirror Prime n/a n/a
TOTAL 128 (81 Full Frame) 250 (250 Full Frame)


Now let's compare some sample lenses from each mount with typical Focal ranges for Sony A7S and Canon 6D to see how these lenses compares:

Fast Standard Zoom Lenses
Model FF Equiv. Weight Weight w/ Cam Length Street Price
Sony FE 24-70mm F2.8 GM Lens Sony FE 24-70mm F2.8 GM
24 - 70mm 886gr 1375gr 136mm Amazon B&H Photo
Canon 24-70mm f2.8L II USM Lens Canon 24-70mm f2.8L II USM
24 - 70mm 805gr 1575gr 113mm Amazon B&H Photo
Fast Tele Zoom Equivalent Lenses
Model FF Equiv. Weight Weight w/ Cam Length Street Price
Sony FE 70-200mm F2.8 GM OSS Lens Sony FE 70-200mm F2.8 GM OSS
70 - 200mm 1480gr 1969gr 200mm Amazon B&H Photo
Canon EF 70-200 F2.8L IS III USM Lens Canon EF 70-200 F2.8L IS III USM
70 - 200mm 1440gr 2210gr 199mm Amazon B&H Photo
Fast Normal Prime Equivalent Lenses
Model FF Equiv. Weight Weight w/ Cam Length Street Price
Sony FE 50mm F1.4 Lens Sony FE 50mm F1.4
50mm 778gr 1267gr 108mm Amazon B&H Photo
Canon 50mm f1.4 USM Lens Canon 50mm f1.4 USM
50mm 290gr 1060gr 51mm Amazon B&H Photo
Fast Wideangle Zoom Equivalent Lenses
Model FF Equiv. Weight Weight w/ Cam Length Street Price
Sony FE 16-35mm F2.8 GM Lens Sony FE 16-35mm F2.8 GM
16 - 35mm 680gr 1169gr 122mm Amazon B&H Photo
Canon 16-35mm F2.8L III Lens Canon 16-35mm F2.8L III
16 - 35mm 790gr 1560gr 128mm Amazon B&H Photo
24-105mm f4 Equivalent Lenses
Model FF Equiv. Weight Weight w/ Cam Length Street Price
Sony FE 24-105mm F4 G OSS Lens Sony FE 24-105mm F4 G OSS
24 - 105mm 663gr 1152gr 113mm Amazon B&H Photo
Canon 24-105mm f4L IS USM Lens Canon 24-105mm f4L IS USM
24 - 105mm 670gr 1440gr 107mm Amazon B&H Photo
Super-Tele Zoom Equivalent Lenses
Model FF Equiv. Weight Weight w/ Cam Length Street Price
Sony FE 100-400mm F4.5-5.6 GM OSS Lens Sony FE 100-400mm F4.5-5.6 GM OSS
100 - 400mm 1395gr 1884gr 205mm Amazon B&H Photo
Sigma 150-600mm F5-6.3 DG OS HSM C Lens Sigma 150-600mm F5-6.3 DG OS HSM C
150 - 600mm 1930gr 2700gr 290mm Amazon B&H Photo
What types of Photography are Sony A7S and Canon 6D Good for?
In this section, we rank and compare Sony A7S and Canon 6D for five different photography types in order to make your decision process easier in case you are specifically interested in one or more of these areas.

Sony A7S for Portrait Photography

GOOD

Canon 6D for Portrait Photography

GOOD
Large Full frame (35.8 x 23.9 mm) sensor
Electronic Built-in Viewfinder
Good Ergonomics&Handling
Average Resolution Sensor: 12.0MP
No Image Stabilization
Read the details
Large Full frame (36 x 24 mm) sensor
Very High Resolution Sensor: 20.0MP
Optical Built-in Viewfinder
Good Ergonomics&Handling
No Image Stabilization
Read the details

Sony A7S for Street Photography

GOOD

Canon 6D for Street Photography

GOOD
Large Full frame (35.8 x 23.9 mm) sensor
Electronic Built-in Viewfinder
Live-view
Face-Detection Focusing
Tilting LCD Screen
Medium sized Body
No Image Stabilization
Read the details
Large Full frame (36 x 24 mm) sensor
Optical Built-in Viewfinder
Live-view
Face-Detection Focusing
No Image Stabilization
Large Body
Read the details

Sony A7S for Sports Photography

GOOD

Canon 6D for Sports Photography

GOOD
Electronic Built-in Viewfinder
Good Ergonomics&Handling
Environmental Sealings
Fast Max shutter speed: 1/8000s
25 Focus Points
Good Low Light ISO
Wireless Connection
Average Continuous Shooting: 5.0fps
No Image Stabilization
Read the details
Optical Built-in Viewfinder
Good Ergonomics&Handling
Environmental Sealings
Fast Max shutter speed: 1/4000s
1 Cross Type Focus sensors
11 Focus Points
Good Battery Life: 1090 shots
Good Low Light ISO
Wireless Connection
Average Continuous Shooting: 4.5fps
No Image Stabilization
Read the details

Sony A7S for Daily Photography

EXCELLENT

Canon 6D for Daily Photography

GOOD
Large Full frame (35.8 x 23.9 mm) sensor
Environmental Sealings
Medium size Body
489g
Body Thickness 48mm
Read the details
Large Full frame (36 x 24 mm) sensor
Environmental Sealings
Large Body
770g
Body Thickness 71mm
Read the details

Sony A7S for Landscape Photography

AVERAGE

Canon 6D for Landscape Photography

AVERAGE
Large Full frame (35.8 x 23.9 mm) sensor
Environmental Sealings
Live-view
Average Resolution Sensor: 12.0MP
Read the details
Large Full frame (36 x 24 mm) sensor
Very High Resolution Sensor: 20.0MP
Environmental Sealings
Live-view
Built-in GPS
Read the details

Sony A7S vs Canon 6D: OUR DECISION

You may have already made your decision about which camera suits better for your needs and your budget so far but in case you wonder how we rated Sony A7S and Canon 6D, below you can find their scores in five different aspects. Our Decision Algorithm dynamically scores cameras using 63 different specs, current price and DxO Mark scores (where possible) in order to make a more objective and consistent comparison.

Here is a summary of how Sony A7S and Canon 6D scores compare:

Sony A7S
Imaging
Features
Value
Portability
Overall
Ranked #39 out of 86 in SLR-style mirrorless cameras
Ranked #71 out of 1220 in all Cameras
Canon 6D
Imaging
Features
Value
Portability
Overall
Ranked #32 out of 94 in Mid-size SLR cameras
Ranked #126 out of 1220 in all Cameras

Sony A7S is the clear winner of this comparison. It has a higher Overall Score and beats Canon 6D in all criteria. It has better general image quality, more features, more compact body and offers more value for the money

Sony A7S
Sony A7S
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Canon 6D
Canon 6D
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Canon 6D vs Sony A7S Specs Table
Detailed comparison of specifications
General Sony Alpha A7S Canon EOS 6D
Brand Sony Canon
Announced 2014-04-06 2013-02-12
Body Type SLR-style mirrorless Mid-size SLR
Sensor
Type CMOS CMOS
Size Full frame Full frame
Dimensions 35.8 x 23.9 mm 36 x 24 mm
Area 855.62mm2 864.00mm2
Megapixels 12 megapixels 20 megapixels
Max Resolution 4240 x 2832 5472 x 3648
Max Native Light sensitivity 409,600 ISO 25,600 ISO
Max Boosted Light Sensitivity - 102400 ISO
Min Native Light sensitivity 100 ISO 100 ISO
Min Boosted Light Sensitivity - 50 ISO
RAW Support
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 25 11
Lens
Manual Focus
Lens Mount Sony E Canon EF
Number of Available Lenses 128 250
Screen
Type Tilting Fixed type
Size 3 3"
Resolution 1,230k dots 1,040k dots
Touch Screen
Viewfinder
Viewfinder Electronic Optical (pentaprism)
Viewfinder Resolution 2,359k dots no electronic viewfinder
Viewfinder Coverage 100% 97%
Viewfinder Magnification 0.71x 0.71x
Photography Features
Max Mechanical Shutter 1/8000s 1/4000s
Shutter Priority
Aperture Priority
Manual Exposure Mode
Custom White Balance
Image Stabilization No No
Built-in Flash
Max Flash Sync n/a 1/180s
External Flash
Continuous Shooting 5.0 fps 4.5 fps
Multi-Segment
Average
Spot
Partial
AF-Area
Center Weighted
AE Bracketing
WB Bracketing
Video Features
Max Video Resolution 3840 x 2160 1920 x 1080
Video Formats MPEG-4, AVCHD, XAVC H.264
Microphone Port
Headphone Port
Connectivity
Wireless Connectivity Built-In Built-In
HDMI
Physical
Environmental Sealing
Weight 489g 770g
Dimensions 127 x 94 x 48mm 145 x 111 x 71mm
Battery Life 360 shots 1090 shots
Other Features
Timelapse Recording With Downloadable App
GPS None BuiltIn
DxO Sensor Scores
DxO Overall Score 87 82
DxO Color Depth 23.9 23.8
DxO Dynamic Range 13.2 12.1
DxO Low Light ISO 3702 2340
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