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Canon 80D versus Sony A7S

The Canon EOS 80D and the Sony Alpha A7S are two digital cameras that were revealed to the public, respectively, in February 2016 and April 2014. The 80D is a DSLR, while the A7S is a mirrorless interchangeable lens camera. The cameras are based on an APS-C (80D) and a full frame (A7S) sensor. The Canon has a resolution of 24 megapixel, whereas the Sony provides 12 MP. Read on to find out how these two cameras compare with respect to their size, their sensors, their features, and their reception by expert reviewers.

Body comparison: Canon 80D vs Sony A7S

An illustration of the physical size and weight of the Canon 80D and the Sony A7S is provided in the side-by-side display below. Three consecutive views from the front, the top, and the rear side are shown. All width, height and depth dimensions are rounded to the nearest millimeter. You can also toggle the display to switch to a percentage comparison if you prefer that the measures are being expressed in relative terms (in this case, the camera on the left – the 80D – represents 100 percent across all the size and weight measures).

Snapsort Canon 80D vs Sony A7S
Compare 80D versus A7S top
Compare 80D and A7S rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A7S is notably smaller (18 percent) than the Canon 80D. Moreover, the A7S is markedly lighter (33 percent) than the 80D. In this context, it is worth noting that both cameras are splash and dust-proof and can, hence, be used in inclement weather conditions or harsh environments.

The above size and weight comparisons are to some extent incomplete since they do not consider the interchangeable lenses that both of these cameras require. A larger imaging sensor will tend to go along with bigger and heavier lenses, although exceptions exist. You can find an overview of optics for the two cameras in the Canon EF Lens Catalog (80D) and the Sony FE Lens Catalog (A7S). Mirrorless cameras, such as the A7S, have moreover the advantage that they can use many lenses from other systems via adapters, as they have a relatively short flange to focal plane distance.

Concerning battery life, the 80D gets 960 shots out of its LP-E6N battery, while the A7S can take 380 images on a single charge of its NP-FW50 power pack.

The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. If you want to switch the focus of the display and review another camera pair, just select a new right or left comparator from among the camera models in the table. Alternatively, you can also move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons there.

Camera Body Specifications
  Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
(CIPA)
Weather
Sealing
(yes/no)
Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Canon 80D» 5.5 in 4.1 in 3.1 in 25.8 oz 960 Y Feb 2016 1,199 i i
Sony A7S« 5.0 in 3.7 in 1.9 in 17.2 oz 380 Y Apr 2014 2,499- i
Canon 6D Mark II« » 5.7 in 4.4 in 3.0 in 27.0 oz 1200 Y Jun 2017 1,999 i i
Canon T6i« » 5.2 in 4.0 in 3.1 in 19.6 oz 440 n Feb 2015 749- i
Canon T6s« » 5.2 in 4.0 in 3.1 in 19.9 oz 440 n Feb 2015 849- i
Canon G3 X« » 4.8 in 3.0 in 4.1 in 25.9 oz 300 Y Jun 2015 999 i i
Canon 7D II« » 5.9 in 4.4 in 3.1 in 32.1 oz 670 Y Sep 2014 1,799 i i
Canon 70D« » 5.5 in 4.1 in 3.1 in 26.6 oz 920 Y Jul 2013 1,199- i
Canon 60D« » 5.7 in 4.2 in 3.1 in 26.6 oz 1100 Y Aug 2010 1,399- i
Nikon D7500« » 5.4 in 4.1 in 2.9 in 25.4 oz 950 Y Apr 2017 1,299 i i
Nikon D7200« » 5.4 in 4.2 in 3.0 in 27.0 oz 1110 Y Mar 2015 1,199- i
Nikon D750« » 5.6 in 4.4 in 3.1 in 26.5 oz 1230 Y Sep 2014 2,299 i i
Nikon Df« » 5.7 in 4.3 in 2.6 in 26.8 oz 1400 Y Nov 2013 2,749 i i
Sony A7S II« » 5.0 in 3.8 in 2.4 in 22.1 oz 370 Y Sep 2015 2,999 i i
Sony RX10 II« » 5.1 in 3.5 in 4.0 in 28.7 oz 400 Y Jun 2015 1,299- i
Sony A7« » 5.0 in 3.7 in 1.9 in 16.7 oz 340 Y Oct 2013 1,699- i
Sony A7R« » 5.0 in 3.7 in 1.9 in 16.4 oz 340 Y Oct 2013 2,299- i

The price is, of course, an important factor in any camera decision. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The 80D was launched at a markedly lower price (by 52 percent) than the A7S, which puts it into a different market segment. Usually, retail prices stay at first close to the launch price, but after several months, discounts become available. Later in the product cycle and, in particular, when the replacement model is about to appear, further discounting and stock clearance sales often push the camera price considerably down. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.

 

Sensor comparison: Canon 80D vs Sony A7S

The size of the sensor inside a digital camera is one of the key determinants of image quality. A large sensor will tend to have larger individual pixels that provide better low-light sensitivity, wider dynamic range, and richer color depth than smaller pixel-units in a sensor of the same technological generation. Furthermore, a large sensor camera will give the photographer more possibilities to use shallow depth-of-field in order to isolate a subject from the background. On the downside, larger sensors tend to be more expensive and lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Canon 80D features an APS-C sensor and the Sony A7S a full frame sensor. The sensor area in the A7S is 153 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.6 and 1.0. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Canon 80D and Sony A7S sensor measures

Despite having a smaller sensor, the Canon 80D offers a higher resolution of 24 megapixel, compared with 12 MP of the Sony A7S. This megapixel advantage comes at the cost of a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 3.75μm versus 8.45μm for the A7S). However, it should be noted that the 80D is a somewhat more recent model (by 1 year and 10 months) than the A7S, and its sensor might have benefitted from technological advances during this time that partly offset its pixel-size disadvantage.

80D versus A7S MP

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. This service assesses and scores the color depth ("DXO Portrait"), dynamic range ("DXO Landscape"), and low-light sensitivity ("DXO Sports") of camera sensors, and also publishes an overall camera score. Of the two cameras under consideration, the A7S has a markedly higher DXO score than the 80D (overall score 8 points higher), which will translate into better image quality. The advantage is based on 0.3 bits higher color depth, and 1.7 stops in additional low light sensitivity. The adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.

Sensor Characteristics
  Camera Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
Canon 80D» APS-C 24.0 6000 40001080/60p23.613.2113579
Sony A7S« Full Frame 12.0 4240 28321080/60p23.913.2370287
Canon 6D Mark II« » Full Frame 26.0 6240 41601080/60p24.411.9286285
Canon T6i« » APS-C 24.0 6000 40001080/60p22.712.091971
Canon T6s« » APS-C 24.0 6000 40001080/30p22.612.091570
Canon G3 X« » 1-inch 20.0 5472 36481080/60p21.412.352163
Canon 7D II« » APS-C 20.0 5472 36481080/60p22.411.8108270
Canon 70D« » APS-C 20.0 5472 36481080/30p22.511.692668
Canon 60D« » APS-C 17.9 5184 34561080/30p22.211.581366
Nikon D7500« » APS-C 20.7 5568 37124K/30p24.314.0148386
Nikon D7200« » APS-C 24.0 6000 40001080/60p24.514.6133387
Nikon D750« » Full Frame 24.2 6016 40161080/60p24.814.5295693
Nikon Df« » Full Frame 16.2 4928 3280-24.613.1327989
Sony A7S II« » Full Frame 12.0 4240 28324K/30p23.613.3299385
Sony RX10 II« » 1-inch 20.0 5472 36484K/30p23.012.653170
Sony A7« » Full Frame 24.0 6000 40001080/60p24.814.2224890
Sony A7R« » Full Frame 36.2 7360 49121080/60p25.614.1274695

Many modern cameras are not only capable of taking still images, but can also record movies. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, and both provide the same movie specifications (1080/60p).

 

Feature comparison: Canon 80D vs Sony A7S

Apart from body and sensor, cameras can and do differ across a range of features. For example, the A7S has an electronic viewfinder (2400k dots), while the 80D has an optical one. Both systems have their advantages, with the electronic viewfinder making it possible to project supplementary shooting information into the framing view, whereas the optical viewfinder offers lag-free viewing and a very clear framing image. The adjacent table lists some of the other core features of the Canon 80D and Sony A7S along with similar information for a selection of comparators. The full specs-sheets can be found in the camera manual or, for example, in the dpreview camera hub.

Core Features
  Camera Viewfinder
(Type or
'000 dots)
Control
Panel
(yes/no)
LCD
Size
(inch)
LCD
Resolution
('000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Shutter
speed
(1/sec)
Shutter
flaps
(1/sec))
Build-in
Flash
(yes/no)
Build-in
Image
Stab
Canon 80D»optical Y 3.0 1040 swivel Y 8000 7.0 Y n
Sony A7S«2400 n 3.0 921 tilting n 8000 5.0 n n
Canon 6D Mark II« »optical Y 3.0 1040 swivel Y 4000 6.5 n n
Canon T6i« »optical n 3.0 1040 swivel Y 4000 5.0 Y n
Canon T6s« »optical Y 3.0 1040 swivel Y 4000 5.0 Y n
Canon G3 X« »- n 3.2 1620 tilting Y 2000 5.9 Y Y
Canon 7D II« »optical Y 3.0 1040 fixed n 8000 10.0 Y n
Canon 70D« »optical Y 3.0 1040 swivel Y 8000 7.0 Y n
Canon 60D« »optical Y 3.0 1040 swivel n 8000 5.3 Y n
Nikon D7500« »optical Y 3.2 922 tilting Y 8000 8.0 Y n
Nikon D7200« »optical Y 3.2 1229 fixed n 8000 6.0 Y n
Nikon D750« »optical Y 3.2 1229 tilting n 4000 6.0 Y n
Nikon Df« »optical Y 3.2 921 fixed n 4000 5.5 n n
Sony A7S II« »2400 n 3.0 1229 tilting n 8000 5.0 n Y
Sony RX10 II« »2359 Y 3.0 1229 tilting n 3200 14.0 Y Y
Sony A7« »2400 n 3.0 1230 tilting n 8000 5.0 n n
Sony A7R« »2400 n 3.0 1230 tilting n 8000 4.0 n n

The 80D is a current model that online retailers, such as amazon, will have in stock. In contrast, the A7S has been discontinued (but it can be found pre-owned on eBay). As a replacement in the same line of cameras, the A7S was succeeded by the Sony A7S II.

Review summary: Canon 80D vs Sony A7S

So how do things add up? Which of the two cameras – the Canon 80D or the Sony A7S – has the upper hand? A synthesis of the relative strong points of each of the models is listed below.

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Advantages of the Canon EOS 80D:

  • More detail: Offers more megapixels (24 vs 12MP) with a 41% higher linear resolution.
  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • Easier setting verification: Has an LCD display on top to control shooting parameters.
  • More detailed LCD: Has a higher resolution rear screen (1040k vs 921k dots).
  • More flexible LCD: Has swivel screen for odd-angle shots in portrait or landscape orientation.
  • Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
  • Faster burst: Shoots at higher frequency (7 vs 5 flaps/sec) to capture the decisive moment.
  • Longer lasting: Can take more shots (960 versus 380) on a single battery charge.
  • Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
  • More affordable: Was introduced into a lower priced category (52 percent cheaper at launch).
  • More modern: Is somewhat more recent (announced 1 year and 10 months after the A7S).

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Arguments in favor of the Sony Alpha A7S:

  • Better image quality: Scores markedly higher (8 points) in the DXO overall evaluation.
  • Better low-light sensitivity: Can shoot in dim conditions (1.7 stops ISO advantage).
  • More framing info: Has an electronic viewfinder that displays shooting data.
  • More compact: Is smaller (127x94mm vs 139x105mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 241g or 33 percent) and is thus easier to take along.
  • More legacy lens friendly: Can use many non-native lenses via adapters.
  • More heavily discounted: Has been on the market for longer (launched in April 2014).

If the count of relative strengths (bullet points above) is taken as a measure, the 80D is the clear winner of the match-up (11 : 7 points). However, the relative importance of the various individual camera aspects will vary according to personal preferences and needs, so that you might like to apply corresponding weights to the particular features before making a decision on a new camera.

80D 11:07 A7S

In any case, while the specs-based evaluation of cameras is instructive in revealing their potential as photographic tools, it remains incomplete and does no justice, for example, to the way the 80D or the A7S handle or perform in practice. User reviews that are available, for instance, at amazon can sometimes shed light on these issues, but such feedback is all too often partial, inconsistent, and inaccurate. This is why expert reviews are important. The adjacent table relays the overall verdicts of several of the most popular camera review sites (cameralabs, dpreview, ephotozine, imaging-resource, photographyblog). You can find the full text of the reviews by clicking on the site logo in the table header.

Review scores
  Camera cameralabs dpreview ephotozine imaging-resource photographyblog Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Canon 80D»HiRec84/1004.5/54.5/54.5/5 Feb 2016 1,199 i i
Sony A7S«-86/1004.5/54.5/55/5 Apr 2014 2,499- i
Canon 6D Mark II« »Rec80/1004.5/54/54/5 Jun 2017 1,999 i i
Canon T6i« »-75/1004.5/54.5/54.5/5 Feb 2015 749- i
Canon T6s« »Rec77/1004.5/54.5/54.5/5 Feb 2015 849- i
Canon G3 X« »Rec-4.5/53.5/54/5 Jun 2015 999 i i
Canon 7D II« »Rec84/1004/55/54.5/5 Sep 2014 1,799 i i
Canon 70D« »HiRec83/1004.5/54.5/55/5 Jul 2013 1,199- i
Canon 60D« »Rec79/1004/55/54.5/5 Aug 2010 1,399- i
Nikon D7500« »HiRec86/1005/54.5/54.5/5 Apr 2017 1,299 i i
Nikon D7200« »HiRec84/1004.5/54/54.5/5 Mar 2015 1,199- i
Nikon D750« »HiRec90/1004.5/55/54.5/5 Sep 2014 2,299 i i
Nikon Df« »-81/1004/54/54/5 Nov 2013 2,749 i i
Sony A7S II« »Rec-4.5/55/55/5 Sep 2015 2,999 i i
Sony RX10 II« »HiRec82/1004.5/54.5/54/5 Jun 2015 1,299- i
Sony A7« »HiRec80/1005/54.5/55/5 Oct 2013 1,699- i
Sony A7R« »HiRec82/1004.5/55/55/5 Oct 2013 2,299- i

Care should be taken when interpreting the review scores above, though. The ratings are only valid when refering to cameras in the same category and of the same age. Hence, a score should always be seen in the context of the camera's market launch date and its price, and comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. Also, please note that some of the review sites have changed their methodology and reporting over time.

 

Other camera comparisons

Did this review help to inform your camera decision process? If you would like to see a different side-by-side camera review, just make a corresponding selection in the search boxes below. An an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool. If you cannot find the camera you are interested in, kindly get in touch, and I will try to update the database with the necessary infos.

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