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Sony A7S vs Canon 1D X Mark II

The Sony Alpha A7S and the Canon EOS-1D X Mark II are two professional cameras that were announced, respectively, in April 2014 and February 2016. The A7S is a mirrorless interchangeable lens camera, while the 1DX Mark II is a DSLR. Both cameras are equipped with a full frame sensor. The Sony has a resolution of 12 megapixels, whereas the Canon provides 20 MP.

Below is an overview of the main specs of the two cameras as a starting point for the comparison.

Headline Specifications
Sony A7S
versus
Canon 1D X Mark II
Sony A7S   Canon 1D X Mark II
Mirrorless system camera Digital single lens reflex
Sony E mount lenses Canon EF mount lenses
12 MP – Full Frame sensor 20 MP – Full Frame sensor
1080/60p Video 4K/60p Video
ISO 100-102,400 (50 - 409,600) ISO 100-51,200 (50 - 409,600)
Electronic viewfinder (2400k dots) Optical viewfinder
3.0" LCD – 921k dots 3.2" LCD – 1620k dots
Tilting screen (no touchscreen) Fixed touchscreen
5 shutter flaps per second 16 shutter flaps per second
Weathersealed bodyWeathersealed body
380 shots per battery charge1210 shots per battery charge
127 x 94 x 48 mm, 489 g 158 x 168 x 83 mm, 1530 g
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Check 1DX Mark II offers at
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Going beyond this snapshot of core features and characteristics, what are the differences between the Sony Alpha A7S and the Canon EOS-1D X Mark II? Which one should you buy? Read on to find out how these two cameras compare with respect to their body size, their imaging sensors, their shooting features, their input-output connections, and their reception by expert reviewers.

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Body comparison

The physical size and weight of the Sony A7S and the Canon 1D X Mark II are illustrated in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive views from the front, the top, and the rear side are shown. All width, height and depth measures are rounded to the nearest millimeter.

Size Sony A7S vs Canon 1D X Mark II
Compare A7S versus 1DX Mark II top
Comparison A7S or 1DX Mark II rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Canon 1D X Mark II is considerably larger (122 percent) than the Sony A7S. Moreover, the 1DX Mark II is substantially heavier (213 percent) than the A7S. 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. Both cameras have similarly sized sensors, but DSLRs have a larger flange-to-focal plane distance than mirrorless cameras, which imposes contraints on the optical engineering process and generally leads to bigger and heavier lenses. You can compare the optics available for the two cameras in the Sony FE Lens Catalog (A7S) and the Canon EF Lens Catalog (1DX Mark II). Mirrorless cameras, such as the Sony A7S, have moreover the advantage that they have a relatively short flange to focal plane distance and can thus use many lenses from other systems via adapters.

Concerning battery life, the A7S gets 380 shots out of its Sony NP-FW50 battery, while the 1DX Mark II can take 1210 images on a single charge of its Canon LP-E19 power pack. As can be seen in the images above, the 1DX Mark II has a battery grip built in. This facilitates image-taking in portrait orientation and gives it additional battery power. In order to provide similar functionality for the A7S, Sony provides the VG-C1EM vertical grip as an optional accessory (see here on ebay). The power pack in the A7S can be charged via the USB port, so that it is not always necessary to take the battery charger along when travelling.

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, you can move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons there.

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Body Specifications
  empty Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Sony A7S 127 mm 94 mm 48 mm 489 g 380 Y Apr 2014 2,499ebay.com
2.
 
Canon 1D X Mark II 158 mm 168 mm 83 mm 1530 g 1210 Y Feb 2016 5,999ebay.com
3.
 
Canon 1D X 158 mm 168 mm 83 mm 1551 g 1120 Y Oct 2011 6,799ebay.com
4.
 
Canon 1D X Mark III 158 mm 168 mm 83 mm 1440 g 2850 Y Jan 2020 6,499 amazon.com
5.
 
Canon 5DS 152 mm 116 mm 76 mm 930 g 700 Y Feb 2015 3,699ebay.com
6.
 
Canon 6D Mark II 144 mm 111 mm 75 mm 765 g 1200 Y Jun 2017 1,999 amazon.com
7.
 
Nikon D5 160 mm 159 mm 92 mm 1415 g 3780 Y Jan 2016 6,499ebay.com
8.
 
Nikon Df 144 mm 110 mm 67 mm 760 g 1400 Y Nov 2013 2,749ebay.com
9.
 
Sony A7 127 mm 94 mm 48 mm 474 g 340 Y Oct 2013 1,699ebay.com
10.
 
Sony A7 II 127 mm 96 mm 60 mm 599 g 350 Y Nov 2014 1,999ebay.com
11.
 
Sony A7R 127 mm 94 mm 48 mm 465 g 340 Y Oct 2013 2,299ebay.com
12.
 
Sony A7R II 127 mm 96 mm 60 mm 625 g 290 Y Jun 2015 3,199ebay.com
13.
 
Sony A7S II 127 mm 96 mm 60 mm 627 g 370 Y Sep 2015 2,999ebay.com
14.
 
Sony RX1 113 mm 65 mm 70 mm 482 g 270 n Sep 2012 2,799ebay.com
15.
 
Sony RX1R 113 mm 65 mm 70 mm 482 g 270 n Jun 2013 2,799ebay.com
16.
 
Sony RX1R II 113 mm 65 mm 72 mm 507 g 220 n Oct 2015 3,299ebay.com
17.
 
Sony ZV-E1 121 mm 72 mm 54 mm 483 g 570 Y Mar 2023 2,199 amazon.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.

Any camera decision will obviously take relative prices into account. The manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The A7S was launched at a markedly lower price (by 58 percent) than the 1DX Mark II, 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

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. Further, a large sensor camera will give the photographer additional creative options when using shallow depth-of-field to isolate a subject from its background. On the downside, larger sensors tend to be more expensive and lead to bigger and heavier cameras and lenses.

Both cameras under consideration feature a full frame sensor, but their sensors differ slightly in size. The sensor area in the 1DX Mark II is 1 percent bigger. They nevertheless have the same format factor of 1.0. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Sony A7S and Canon 1D X Mark II sensor measures

With 20MP, the 1DX Mark II offers a higher resolution than the A7S (12MP), but the 1DX Mark II has smaller individual pixels (pixel pitch of 6.57μm versus 8.45μm for the A7S). Yet, the 1DX Mark II is a somewhat more recent model (by 1 year and 9 months) than the A7S, and its sensor might have benefitted from technological advances during this time that enhance the light gathering capacity of its pixel-units.

The resolution advantage of the Canon 1D X Mark II implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the 1DX Mark II for good quality output (200 dots per inch) amounts to 27.4 x 18.2 inches or 69.5 x 46.3 cm, for very good quality (250 dpi) 21.9 x 14.6 inches or 55.6 x 37.1 cm, and for excellent quality (300 dpi) 18.2 x 12.2 inches or 46.3 x 30.9 cm. The corresponding values for the Sony A7S are 21.2 x 14.2 inches or 53.8 x 36 cm for good quality, 17 x 11.3 inches or 43.1 x 28.8 cm for very good quality, and 14.1 x 9.4 inches or 35.9 x 24 cm for excellent quality prints.

The 1DX Mark II has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

The Sony Alpha A7S has a native sensitivity range from ISO 100 to ISO 102400, which can be extended to ISO 50-409600. The corresponding ISO settings for the Canon EOS-1D X Mark II are ISO 100 to ISO 51200, with the possibility to increase the ISO range to 50-409600.

Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.

A7S versus 1DX Mark II MP

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. This service is based on lab testing and assigns an overall score to each camera sensor, as well as ratings for dynamic range ("DXO Landscape"), color depth ("DXO Portrait"), and low-light sensitivity ("DXO Sports"). The Overall DXO ratings for the two cameras under consideration are close, suggesting that they provide similar imaging performance. The adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.

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Sensor Characteristics
  empty Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Sony A7S Full Frame 12.0 4240 28321080/60p23.913.2370287
2.
 
Canon 1D X Mark II Full Frame 20.0 5472 36484K/60p24.113.5320788
3.
 
Canon 1D X Full Frame 17.9 5184 34561080/30p23.811.8278682
4.
 
Canon 1D X Mark III Full Frame 20.0 5472 36484K/60p24.214.5324891
5.
 
Canon 5DS Full Frame 50.3 8688 57921080/30p24.712.4238187
6.
 
Canon 6D Mark II Full Frame 26.0 6240 41601080/60p24.411.9286285
7.
 
Nikon D5 Full Frame 20.7 5588 37124K/30p25.112.3234388
8.
 
Nikon Df Full Frame 16.2 4928 3280none24.613.1327989
9.
 
Sony A7 Full Frame 24.0 6000 40001080/60p24.814.2224890
10.
 
Sony A7 II Full Frame 24.0 6000 40001080/60p24.913.6244990
11.
 
Sony A7R Full Frame 36.2 7360 49121080/60p25.614.1274695
12.
 
Sony A7R II Full Frame 42.2 7952 53044K/30p26.013.9343498
13.
 
Sony A7S II Full Frame 12.0 4240 28324K/30p23.613.3299385
14.
 
Sony RX1 Full Frame 24.0 6000 40001080/60p25.114.3253493
15.
 
Sony RX1R Full Frame 24.0 6000 40001080/60p25.013.6253791
16.
 
Sony RX1R II Full Frame 42.2 7952 53041080/60p25.813.9320497
17.
 
Sony ZV-E1 Full Frame 12.0 4240 28324K/60p25.414.6318196
Note: DXO values in italics represent estimates based on sensor size and age.

Many modern cameras cannot only take still pictures, but also record videos. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, but the 1DX Mark II provides a better video resolution than the A7S. It can shoot movie footage at 4K/60p, while the Sony is limited to 1080/60p.

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Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. For example, the A7S has an electronic viewfinder (2400k dots), while the 1DX Mark II 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 viewfinders of both cameras offer the same field of view (100%), but the viewfinder of the 1DX Mark II has a higher magnification than the one of the A7S (0.76x vs 0.71x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The table below summarizes some of the other core capabilities of the Sony A7S and Canon 1D X Mark II in connection with corresponding information for a sample of similar cameras.

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Core Features
  empty Camera
Model
Viewfinder
(Type or
000 dots)
Control
Panel
(yes/no)
LCD
Specifications
(inch/000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Max
Shutter
Speed *
Max
Shutter
Flaps *
Built-in
Flash
(yes/no)
Built-in
Image
Stab
1.
 
Sony A7S2400 n3.0 / 921 tilting n 1/8000s 5.0/s n n
2.
 
Canon 1D X Mark IIoptical Y3.2 / 1620 fixed Y 1/8000s 16.0/s n n
3.
 
Canon 1D Xoptical Y3.2 / 1040 fixed n 1/8000s 14.0/s n n
4.
 
Canon 1D X Mark IIIoptical Y3.2 / 2100 fixed Y 1/8000s 20.0/s n n
5.
 
Canon 5DSoptical Y3.2 / 1040 fixed n 1/8000s 5.0/s n n
6.
 
Canon 6D Mark IIoptical Y3.0 / 1040 swivel Y 1/4000s 6.5/s n n
7.
 
Nikon D5optical Y3.2 / 2359 fixed Y 1/8000s 14.0/s n n
8.
 
Nikon Dfoptical Y3.2 / 921 fixed n 1/4000s 5.5/s n n
9.
 
Sony A72400 n3.0 / 1230 tilting n 1/8000s 5.0/s n n
10.
 
Sony A7 II2400 n3.0 / 1230 tilting n 1/8000s 5.0/s n Y
11.
 
Sony A7R2400 n3.0 / 1230 tilting n 1/8000s 4.0/s n n
12.
 
Sony A7R II2400 n3.0 / 1229 tilting n 1/8000s 5.0/s n Y
13.
 
Sony A7S II2400 n3.0 / 1229 tilting n 1/8000s 5.0/s n Y
14.
 
Sony RX1optional n3.0 / 1229 fixed n 1/4000s 5.0/s Y n
15.
 
Sony RX1Roptional n3.0 / 1229 fixed n 1/4000s 5.0/s Y n
16.
 
Sony RX1R II2360 n3.0 / 1229 tilting n 1/4000s 5.0/s n n
17.
 
Sony ZV-E1none n3.0 / 1037 swivel Y 1/8000s 10.0/s n Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The 1DX Mark II has a touchscreen, while the A7S has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.

The reported shutter speed information refers to the use of the mechanical shutter. Yet, some cameras only have an electronic shutter, while others have an electronic shutter in addition to a mechanical one. In fact, the A7S is one of those camera that have an additional electronic shutter, which makes completely silent shooting possible. However, this mode is less suitable for photographing moving objects (risk of rolling shutter) or shooting under artificial light sources (risk of flickering).

The A7S writes its imaging data to SDXC or Memory Stick PRO Duo cards, while the 1DX Mark II uses Compact Flash or CFast cards. The 1DX Mark II features dual card slots, which can be very useful in case a memory card fails. In contrast, the A7S only has one slot.

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Connectivity comparison

For some imaging applications, the extent to which a camera can communicate with its environment can be an important aspect in the camera decision process. The table below provides an overview of the connectivity of the Sony Alpha A7S and Canon EOS-1D X Mark II and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
  empty Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Sony A7SYstereo / monoYYmicro2.0YY-
2.
 
Canon 1D X Mark IIYmono / monoYYmini3.0---
3.
 
Canon 1D XYmono / -Y-mini2.0---
4.
 
Canon 1D X Mark IIIYmono / monoYYmini3.1Y-Y
5.
 
Canon 5DSYmono / monoY-mini3.0---
6.
 
Canon 6D Mark IIYstereo / monoY-mini2.0YYY
7.
 
Nikon D5Ystereo / monoYYmini3.0---
8.
 
Nikon DfY- / ---mini2.0---
9.
 
Sony A7Ystereo / monoYYmicro2.0YY-
10.
 
Sony A7 IIYstereo / monoYYmicro2.0YY-
11.
 
Sony A7RYstereo / monoYYmicro2.0YY-
12.
 
Sony A7R IIYstereo / monoYYmicro2.0YY-
13.
 
Sony A7S IIYstereo / monoYYmicro2.0YY-
14.
 
Sony RX1Ystereo / monoY-mini2.0---
15.
 
Sony RX1RYstereo / monoY-mini2.0---
16.
 
Sony RX1R IIYstereo / monoY-micro2.0YY-
17.
 
Sony ZV-E1Ystereo / monoYYmicro3.2Y-Y

It is notable that the A7S offers wifi support, while the 1DX Mark II does not. Wifi can be a very convenient means to transfer image data to an off-camera location.

Studio photographers will appreciate that the Canon 1D X Mark II (unlike the A7S) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Travel and landscape photographers will find it useful that the 1DX Mark II has an internal geolocalization sensor and can record GPS coordinates in its EXIF data.

Both the A7S and the 1DX Mark II have been discontinued, but can regularly be found used on ebay. The A7S was replaced by the Sony A7S II, while the 1DX Mark II was followed by the Canon 1DX Mark III. Further information on the features and operation of the A7S and 1DX Mark II can be found, respectively, in the Sony A7S Manual (free pdf) or the online Canon 1D X Mark II Manual.

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Review summary

So what conclusions can be drawn? Which of the two cameras – the Sony A7S or the Canon 1D X Mark II – has the upper hand? Is one clearly better than the other? A synthesis of the relative strong points of each of the models is listed below.

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Reasons to prefer the Sony Alpha A7S:

  • More framing info: Has an electronic viewfinder that displays shooting data.
  • More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • More compact: Is smaller (127x94mm vs 158x168mm) and thus needs less room in the bag.
  • Less heavy: Is lighter (by 1041g or 68 percent) and hence easier to carry around.
  • Easier travel charging: Can be conveniently charged via its USB port.
  • More legacy lens friendly: Can take a broad range of non-native lenses via adapters.
  • Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
  • Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
  • More affordable: Was introduced into a lower priced category (58 percent cheaper at launch).
  • More heavily discounted: Has been on the market for longer (launched in April 2014).

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Advantages of the Canon EOS-1D X Mark II:

  • More detail: Has more megapixels (20 vs 12MP), which boosts linear resolution by 29%.
  • Better video: Provides higher definition movie capture (4K/60p vs 1080/60p).
  • Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.76x vs 0.71x).
  • Easier setting verification: Features a control panel on top to check shooting parameters.
  • Larger screen: Has a bigger rear LCD (3.2" vs 3.0") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (1620k vs 921k dots).
  • Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
  • Faster burst: Shoots at higher frequency (16 vs 5 flaps/sec) to capture the decisive moment.
  • More portrait friendly: Features an integrated vertical grip for easier portrait shooting.
  • Longer lasting: Gets more shots (1210 versus 380) out of a single battery charge.
  • Easier geotagging: Features an internal GPS sensor to log localization data.
  • Faster data transfer: Supports a more advanced USB protocol (3.0 vs 2.0).
  • Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
  • Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
  • More modern: Was introduced somewhat (1 year and 9 months) more recently.

If the count of relative strengths (bullet points above) is taken as a measure, the 1DX Mark II is the clear winner of the contest (17 : 11 points). However, the pertinence of the various camera strengths will differ across photographers, so that you might want to weigh individual camera traits according to their importance for your own imaging needs before making a camera decision. A professional wildlife photographer will view the differences between cameras in a way that diverges from the perspective of a family photog, and a person interested in architecture has distinct needs from a sports shooter. Hence, the decision which camera is best and worth buying is often a very personal one.

A7S 11:17 1DX Mark II

How about other alternatives? Do the specifications of the Sony A7S and the Canon 1D X Mark II place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera and Best DSLR Camera listings whether the two cameras rank among the cream of the crop.

In any case, while the comparison of technical specifications can provide a useful overview of the capabilities of different cameras, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the A7S or the 1DX Mark II. 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.

Expert reviews

This is where reviews by experts come in. The adjacent summary-table relays the overall verdicts of several of the most popular camera review sites (amateurphotographer [AP], cameralabs [CL], digitalcameraworld [DCW], dpreview [DPR], ephotozine [EPZ], photographyblog [PB]). As can be seen, the professional reviewers agree in many cases on the quality of different cameras, but sometimes their assessments diverge, reinforcing the earlier point that a camera decision is often a very personal choice.

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Expert Camera Reviews
  empty  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Sony A7S4/5....86/1004.5/55/5 Apr 2014 2,499ebay.com
2.
 
Canon 1D X Mark II....4.5/589/1004.5/54.5/5 Feb 2016 5,999ebay.com
3.
 
Canon 1D X5/5......4.5/54.5/5 Oct 2011 6,799ebay.com
4.
 
Canon 1D X Mark III..+ +5/5..4.5/54/5 Jan 2020 6,499 amazon.com
5.
 
Canon 5DS..+..83/1004.5/54.5/5 Feb 2015 3,699ebay.com
6.
 
Canon 6D Mark II4/5+4/580/1004.5/54/5 Jun 2017 1,999 amazon.com
7.
 
Nikon D5....4/589/1004.5/55/5 Jan 2016 6,499ebay.com
8.
 
Nikon Df4/5....81/1004/54/5 Nov 2013 2,749ebay.com
9.
 
Sony A75/5+ +..80/1005/55/5 Oct 2013 1,699ebay.com
10.
 
Sony A7 II5/5+4/582/1004.5/55/5 Nov 2014 1,999ebay.com
11.
 
Sony A7R5/5+ +..82/1004.5/55/5 Oct 2013 2,299ebay.com
12.
 
Sony A7R II5/5+ +5/590/1005/55/5 Jun 2015 3,199ebay.com
13.
 
Sony A7S II5/5+....4.5/55/5 Sep 2015 2,999ebay.com
14.
 
Sony RX15/5....79/1004/54.5/5 Sep 2012 2,799ebay.com
15.
 
Sony RX1R5/5......4/54.5/5 Jun 2013 2,799ebay.com
16.
 
Sony RX1R II5/5....82/100..4.5/5 Oct 2015 3,299ebay.com
17.
 
Sony ZV-E1..+4/5....4.5/5 Mar 2023 2,199 amazon.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The above review scores should be interpreted with care, though. The ratings are only valid when referring to cameras in the same category and of the same age. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. Also, please note that some of the review sites have changed their methodology and reporting over time.

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Check A7S offers at
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Check 1DX Mark II offers at
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Other camera comparisons

Did this review help to inform your camera decision process? In case you are interested in seeing how other cameras pair up, just make your choice using the following search menu. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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    Specifications: Sony A7S vs Canon 1D X Mark II

    Below is a side-by-side comparison of the specs of the two cameras to facilitate a quick review of their differences and common features.

    Camera Specifications
    Camera Model Sony A7S Canon 1D X Mark II
    Camera Type Mirrorless system camera Digital single lens reflex
    Camera Lens Sony E mount lenses Canon EF mount lenses
    Launch Date April 2014 February 2016
    Launch Price USD 2,499 USD 5,999
    Sensor Specs Sony A7S Canon 1D X Mark II
    Sensor Technology CMOS CMOS
    Sensor Format Full Frame Sensor Full Frame Sensor
    Sensor Size 35.8 x 23.9 mm 36.0 x 24.0 mm
    Sensor Area 855.62 mm2 864 mm2
    Sensor Diagonal 43 mm 43.3 mm
    Crop Factor 1.0x 1.0x
    Sensor Resolution 12 Megapixels 20 Megapixels
    Image Resolution 4240 x 2832 pixels 5472 x 3648 pixels
    Pixel Pitch 8.45 μm 6.57 μm
    Pixel Density 1.40 MP/cm2 2.31 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability 1080/60p Video 4K/60p Video
    ISO Setting 100 - 102,400 ISO 100 - 51,200 ISO
    ISO Boost 50 - 409,600 ISO 50 - 409,600 ISO
    Image Processor BIONZ X DIGIC 6+ (Dual)
    DXO Sensor Quality (score) 87 88
    DXO Color Depth (bits) 23.9 24.1
    DXO Dynamic Range (EV) 13.2 13.5
    DXO Low Light (ISO) 3702 3207
    Screen Specs Sony A7S Canon 1D X Mark II
    Viewfinder Type Electronic viewfinder Optical viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.71x 0.76x
    Viewfinder Resolution 2400k dots
    Top-Level Screen no Top Display Control Panel
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.2inch
    LCD Resolution 921k dots 1620k dots
    LCD Attachment Tilting screen Fixed screen
    Touch Input no Touchscreen Touchscreen
    Shooting Specs Sony A7S Canon 1D X Mark II
    Focus System Contrast-detect AF Phase-detect AF
    Manual Focusing AidFocus Peakingno Peaking Feature
    Continuous Shooting 5 shutter flaps/s 16 shutter flaps/s
    Electronic ShutterYESno E-Shutter
    Fill Flash no On-Board Flash no On-Board Flash
    Storage Medium MS or SDXC cards CF or CFAST cards
    Single or Dual Card Slots Single card slot Dual card slots
    Connectivity Specs Sony A7S Canon 1D X Mark II
    External Flash Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 2.0 USB 3.0
    HDMI Port micro HDMI mini HDMI
    Microphone Port External MIC port External MIC port
    Headphone Socket Headphone port Headphone port
    Wifi Support Wifi built-in no Wifi
    Near-Field Communication NFC built-in no NFC
    Geotagging no internal GPS GPS built-in
    Body Specs Sony A7S Canon 1D X Mark II
    Environmental SealingWeathersealed bodyWeathersealed body
    Battery Type Sony NP-FW50 Canon LP-E19
    Battery Life (CIPA)380 shots per charge1210 shots per charge
    In-Camera Charging USB charging no USB charging
    Body Dimensions 127 x 94 x 48 mm
    (5.0 x 3.7 x 1.9 in)
    158 x 168 x 83 mm
    (6.2 x 6.6 x 3.3 in)
    Camera Weight 489 g (17.2 oz) 1530 g (54.0 oz)
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