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Sony A7S II vs Canon G1 X Mark III

The Sony Alpha 7S II and the Canon PowerShot G1 X Mark III are two digital cameras that were officially introduced, respectively, in September 2015 and October 2017. The A7S II is a mirrorless interchangeable lens camera, while the G1X Mark III is a fixed lens compact. The cameras are based on a full frame (A7S II) and an APS-C (G1X Mark III) sensor. The Sony has a resolution of 12 megapixels, whereas the Canon provides 24 MP.

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

Headline Specifications
Sony A7S II
versus
Canon G1 X Mark III
Sony A7S II   Canon G1 X Mark III
Mirrorless system camera Fixed lens compact camera
Sony E mount lenses 24-72mm f/2.8-5.6
12 MP – Full Frame sensor 24 MP – APS-C sensor
4K/30p Video 1080/60p Video
ISO 100-102,400 (50 - 409,600) ISO 100-25,600
Electronic viewfinder (2400k dots) Electronic viewfinder (2360k dots)
3.0" LCD – 1229k dots 3.0" LCD – 1040k dots
Tilting screen (no touchscreen) Swivel touchscreen
5 shutter flaps per second 9 shutter flaps per second
In-body stabilizationLens-based stabilization
Weathersealed bodyWeathersealed body
370 shots per battery charge200 shots per battery charge
127 x 96 x 60 mm, 627 g 115 x 78 x 51 mm, 399 g
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Going beyond this snapshot of core features and characteristics, what are the differences between the Sony Alpha 7S II and the Canon PowerShot G1 X Mark III? 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 side-by-side display below illustrates the physical size and weight of the Sony A7S II and the Canon G1 X Mark III. 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 dimensions are rounded to the nearest millimeter.

Size Sony A7S II vs Canon G1 X Mark III
Compare A7S II versus G1X Mark III top
Comparison A7S II or G1X Mark III rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Canon G1 X Mark III is notably smaller (26 percent) than the Sony A7S II. 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 and possibly misleading, as the G1X Mark III has a lens built in, whereas the A7S II is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup. You can compare the optics available for the A7S II and their specifications in the Sony FE Lens Catalog.

Concerning battery life, the A7S II gets 370 shots out of its Sony NP-FW50 battery, while the G1X Mark III can take 200 images on a single charge of its Canon NB-13L power pack. The power pack in the A7S II can be charged via the USB port, so that it is not always necessary to take the battery charger along when travelling.

The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. In case you want to display and compare another camera duo, you can use the CAM-parator app to select your camera combination among a large number of options.

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Body Specifications
# image Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Sony A7S II 127 mm 96 mm 60 mm 627 g 370 Y Sep 2015 2,999ebay.com
2.
 
Canon G1 X Mark III 115 mm 78 mm 51 mm 399 g 200 Y Oct 2017 1,299ebay.com
3.
 
Canon 80D 139 mm 105 mm 79 mm 730 g 960 Y Feb 2016 1,199ebay.com
4.
 
Canon SX540 120 mm 82 mm 92 mm 442 g 205 n Jan 2016 399ebay.com
5.
 
Fujifilm X100V 128 mm 75 mm 53 mm 478 g 420 Y Feb 2020 1,399ebay.com
6.
 
Fujifilm X100F 127 mm 75 mm 52 mm 469 g 390 n Jan 2017 1,299ebay.com
7.
 
Sony A7 IV 131 mm 96 mm 80 mm 659 g 580 Y Oct 2021 2,499 amazon.com
8.
 
Sony A7R IIIA 127 mm 96 mm 74 mm 650 g 650 Y Apr 2021 3,199 amazon.com
9.
 
Sony A7R IVA 129 mm 96 mm 78 mm 665 g 670 Y Apr 2021 3,499 amazon.com
10.
 
Sony A7S III 127 mm 97 mm 81 mm 699 g 600 Y Jul 2020 3,499 amazon.com
11.
 
Sony A7R IV 129 mm 96 mm 78 mm 665 g 670 Y Jul 2019 3,499ebay.com
12.
 
Sony A7R III 127 mm 96 mm 74 mm 650 g 650 Y Oct 2017 3,199ebay.com
13.
 
Sony A9 127 mm 96 mm 63 mm 673 g 650 Y Apr 2017 4,499ebay.com
14.
 
Sony RX10 III 133 mm 94 mm 127 mm 1051 g 420 Y Mar 2016 1,499ebay.com
15.
 
Sony A7R II 127 mm 96 mm 60 mm 625 g 290 Y Jun 2015 3,199ebay.com
16.
 
Sony A7 II 127 mm 96 mm 60 mm 599 g 350 Y Nov 2014 1,999ebay.com
17.
 
Sony A7S 127 mm 94 mm 48 mm 489 g 380 Y Apr 2014 2,499ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
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Any camera decision will obviously take relative prices into account. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The G1X Mark III was launched at a lower price than the A7S II, despite having a lens built in. 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 generally have larger individual pixels that offer better low-light sensitivity, provide wider dynamic range, and have richer color-depth than smaller pixels 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 Sony A7S II features a full frame sensor and the Canon G1 X Mark III an APS-C sensor. The sensor area in the G1X Mark III is 61 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.0 and 1.5. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Sony A7S II and Canon G1 X Mark III sensor measures

Despite having a smaller sensor, the G1X Mark III offers a higher resolution of 24 megapixels, compared with 12 MP of the A7S II. This megapixels advantage comes at the cost of a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 3.72μm versus 8.40μm for the A7S II). However, it should be noted that the G1X Mark III is much more recent (by 2 years and 1 month) than the A7S II, and its sensor will have benefitted from technological advances during this time that make it possible to gather light more efficiently.

The resolution advantage of the Canon G1 X Mark III implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the G1X Mark III for good quality output (200 dots per inch) amounts to 30 x 20 inches or 76.2 x 50.8 cm, for very good quality (250 dpi) 24 x 16 inches or 61 x 40.6 cm, and for excellent quality (300 dpi) 20 x 13.3 inches or 50.8 x 33.9 cm. The corresponding values for the Sony A7S II 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 G1X Mark III has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

The Sony Alpha 7S II 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 PowerShot G1 X Mark III are ISO 100 to ISO 25600 (no boost).

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 II versus G1X Mark III MP

Consistent information on actual sensor performance is available from DXO Mark for many cameras. 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 table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.

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Sensor Characteristics
# image Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Sony A7S II Full Frame 12.0 4240 28324K/30p23.613.3299385
2.
 
Canon G1 X Mark III APS-C 24.0 6000 40001080/60p23.813.2164981
3.
 
Canon 80D APS-C 24.0 6000 40001080/60p23.613.2113579
4.
 
Canon SX540 1/2.3 20.2 5184 38881080/60p20.311.780648
5.
 
Fujifilm X100V APS-C 26.0 6240 41604K/30p24.213.6199684
6.
 
Fujifilm X100F APS-C 24.0 6000 40001080/60p23.913.2170481
7.
 
Sony A7 IV Full Frame 32.7 7008 46724K/60p25.414.7337997
8.
 
Sony A7R IIIA Full Frame 42.2 7952 53044K/30p26.014.73523100
9.
 
Sony A7R IVA Full Frame 60.2 9504 63364K/30p26.014.8334499
10.
 
Sony A7S III Full Frame 12.0 4240 28324K/120p23.713.9252086
11.
 
Sony A7R IV Full Frame 60.2 9504 63364K/30p26.014.8334499
12.
 
Sony A7R III Full Frame 42.2 7952 53044K/30p26.014.73523100
13.
 
Sony A9 Full Frame 24.0 6000 40004K/30p24.913.3351792
14.
 
Sony RX10 III 1-inch 20.0 5472 36484K/30p23.112.647270
15.
 
Sony A7R II Full Frame 42.2 7952 53044K/30p26.013.9343498
16.
 
Sony A7 II Full Frame 24.0 6000 40001080/60p24.913.6244990
17.
 
Sony A7S Full Frame 12.0 4240 28321080/60p23.913.2370287
Note: DXO values in italics represent estimates based on sensor size and age.
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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, but the A7S II provides a higher video resolution than the G1X Mark III. It can shoot video footage at 4K/30p, while the Canon 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. The two cameras under consideration are similar with respect to both having an electronic viewfinder. However, the one in the A7S II offers a slightly higher resolution than the one in the G1X Mark III (2400k vs 2360k dots). The following table reports on some other key feature differences and similarities of the Sony A7S II, the Canon G1 X Mark III, and comparable cameras.

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Core Features
# image 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 A7S II2400 n3.0 / 1229 tilting n 1/8000s 5.0/s n Y
2.
 
Canon G1 X Mark III2360 n3.0 / 1040 swivel Y 1/2000s 9.0/s Y Y
3.
 
Canon 80Doptical Y3.0 / 1040 swivel Y 1/8000s 7.0/s Y n
4.
 
Canon SX540none n3.0 / 461 fixed n 1/2000s 5.9/s Y Y
5.
 
Fujifilm X100V3690 n3.0 / 1620 tilting Y 1/4000s 11.0/s n n
6.
 
Fujifilm X100F2360 n3.0 / 1040 fixed n 1/4000s 8.0/s Y n
7.
 
Sony A7 IV3686 n3.0 / 1037 swivel Y 1/8000s 10.0/s n Y
8.
 
Sony A7R IIIA3686 n3.0 / 2340 tilting Y 1/8000s 10.0/s n Y
9.
 
Sony A7R IVA5760 n3.0 / 2340 tilting Y 1/8000s 10.0/s n Y
10.
 
Sony A7S III9440 n3.0 / 1440 swivel Y 1/8000s 10.0/s n Y
11.
 
Sony A7R IV5760 n3.0 / 1440 tilting Y 1/8000s 10.0/s n Y
12.
 
Sony A7R III3686 n3.0 / 1440 tilting Y 1/8000s 10.0/s n Y
13.
 
Sony A93686 n3.0 / 1440 tilting Y 1/8000s 20.0/s n Y
14.
 
Sony RX10 III2359 Y3.0 / 1229 tilting n 1/2000s 14.0/s Y Y
15.
 
Sony A7R II2400 n3.0 / 1229 tilting n 1/8000s 5.0/s n Y
16.
 
Sony A7 II2400 n3.0 / 1230 tilting n 1/8000s 5.0/s n Y
17.
 
Sony A7S2400 n3.0 / 921 tilting n 1/8000s 5.0/s n n
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.
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One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The G1X Mark III has a touchscreen, while the A7S II has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.

The G1X Mark III has an articulated screen that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in taking selfies. In contrast, the A7S II does not have a selfie-screen.

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 II 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 Canon G1 X Mark III has an intervalometer built-in. This enables the photographer to capture time lapse sequences, such as flower blooming, a sunset or moon rise, without purchasing an external camera trigger and related software.

The A7S II writes its imaging data to SDXC or Memory Stick PRO Duo cards, while the G1X Mark III uses SDXC cards. Both cameras can use UHS-I cards, which provide for Ultra High Speed data transfer of up to 104 MB/s.

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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 7S II and Canon PowerShot G1 X Mark III and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
# image Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Sony A7S IIYstereo / monoYYmicro2.0YY-
2.
 
Canon G1 X Mark IIIYstereo / mono--micro2.0YYY
3.
 
Canon 80DYstereo / monoYYmini2.0YY-
4.
 
Canon SX540-stereo / mono--mini2.0YY-
5.
 
Fujifilm X100VYstereo / monoY-micro3.1Y-Y
6.
 
Fujifilm X100FYstereo / monoY-micro2.0Y--
7.
 
Sony A7 IVYstereo / monoYYfull3.2Y-Y
8.
 
Sony A7R IIIAYstereo / monoYYmicro3.2YYY
9.
 
Sony A7R IVAYstereo / monoYYmicro3.2YYY
10.
 
Sony A7S IIIYstereo / monoYYfull3.2Y-Y
11.
 
Sony A7R IVYstereo / monoYYmicro3.1YYY
12.
 
Sony A7R IIIYstereo / monoYYmicro3.1YYY
13.
 
Sony A9Ystereo / monoYYmicro2.0YYY
14.
 
Sony RX10 IIIYstereo / monoYYmicro2.0YY-
15.
 
Sony A7R IIYstereo / monoYYmicro2.0YY-
16.
 
Sony A7 IIYstereo / monoYYmicro2.0YY-
17.
 
Sony A7SYstereo / monoYYmicro2.0YY-
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It is notable that the A7S II has a microphone port, which is missing on the G1X Mark III. Such an external microphone input can help to substantially improve the quality of audio recordings when a good external microphone is used.

Both the A7S II and the G1X Mark III have been discontinued, but can regularly be found used on ebay. The A7S II was replaced by the Sony A7S III, while the G1X Mark III does not have a direct successor. Further information on the features and operation of the A7S II and G1X Mark III can be found, respectively, in the Sony A7S II Manual (free pdf) or the online Canon G1 X Mark III Manual.

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Review summary

So how do things add up? Which of the two cameras – the Sony A7S II or the Canon G1 X Mark III – has the upper hand? Is one clearly better than the other? The listing below highlights the relative strengths of the two models.

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Reasons to prefer the Sony Alpha 7S II:

  • Better image quality: Features bigger pixels on a larger sensor for higher quality imaging.
  • Richer colors: The pixel size advantage translates into images with better, more accurate colors.
  • More dynamic range: Larger pixels capture a wider spectrum of light and dark details.
  • Better low-light sensitivity: Larger pixels means good image quality even under poor lighting.
  • Better video: Provides higher definition movie capture (4K/30p vs 1080/60p).
  • Better sound: Can connect to an external microphone for higher quality sound recording.
  • Better sound control: Has a headphone port that enables audio monitoring while recording.
  • More detailed LCD: Has a higher resolution rear screen (1229k vs 1040k dots).
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/2000s) to freeze action.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • More flexible: Accepts interchangeable lenses, so that lens characteristics can be altered.
  • Longer lasting: Can take more shots (370 versus 200) on a single battery charge.
  • Easier travel charging: Can be conveniently charged via its USB port.
  • More heavily discounted: Has been available for much longer (launched in September 2015).

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Arguments in favor of the Canon PowerShot G1 X Mark III:

  • More detail: Has more megapixels (24 vs 12MP), which boosts linear resolution by 41%.
  • Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
  • More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
  • Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
  • More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
  • Faster burst: Shoots at higher frequency (9 vs 5 flaps/sec) to capture the decisive moment.
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • Ready to shoot: Has an integrated lens, whereas the A7S II necessitates an extra lens.
  • More compact: Is smaller (115x78mm vs 127x96mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight even though it has a lens built in (unlike the A7S II).
  • Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
  • Easier wireless transfer: Supports Bluetooth for image sharing without cables.
  • More affordable: Was introduced at a lower price, despite coming with a built-in lens.
  • More modern: Reflects 2 years and 1 month of technical progress since the A7S II launch.

If the count of individual advantages (bullet points above) is taken as a guide, the match-up finishes in a tie (14 points each). 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 II 14:14 G1X Mark III

How about other alternatives? Do the specifications of the Sony A7S II and the Canon G1 X Mark III place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera and Best Travel-Zoom 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 says little about, for example, the shooting experience and imaging performance of the A7S II and the G1X Mark III in practical situations. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased.

Expert reviews

This is where reviews by experts come in. The following table reports the overall ratings of the cameras as published by some of the major 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
# image  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Sony A7S II5/5+....4.5/55/5 Sep 2015 2,999ebay.com
2.
 
Canon G1 X Mark III5/5+4/579/1004.5/54.5/5 Oct 2017 1,299ebay.com
3.
 
Canon 80D4/5+ +4.5/584/1004.5/54.5/5 Feb 2016 1,199ebay.com
4.
 
Canon SX540............ Jan 2016 399ebay.com
5.
 
Fujifilm X100V5/5+ +4.5/586/1005/54.5/5 Feb 2020 1,399ebay.com
6.
 
Fujifilm X100F5/5+3.9/583/1004.5/54.5/5 Jan 2017 1,299ebay.com
7.
 
Sony A7 IV5/5+ +4.5/589/1004.5/54.5/5 Oct 2021 2,499 amazon.com
8.
 
Sony A7R IIIA..+ +4/590/1004.5/55/5 Apr 2021 3,199 amazon.com
9.
 
Sony A7R IVA5/5+4.5/591/1004.5/55/5 Apr 2021 3,499 amazon.com
10.
 
Sony A7S III4.5/5+ +5/591/1004.5/55/5 Jul 2020 3,499 amazon.com
11.
 
Sony A7R IV5/5+4.5/591/1004.5/55/5 Jul 2019 3,499ebay.com
12.
 
Sony A7R III..+ +4/590/1004.5/55/5 Oct 2017 3,199ebay.com
13.
 
Sony A95/5+ +4.8/589/1005/55/5 Apr 2017 4,499ebay.com
14.
 
Sony RX10 III5/5+..84/1004.5/54.5/5 Mar 2016 1,499ebay.com
15.
 
Sony A7R II5/5+ +5/590/1005/55/5 Jun 2015 3,199ebay.com
16.
 
Sony A7 II5/5+4/582/1004.5/55/5 Nov 2014 1,999ebay.com
17.
 
Sony A7S4/5....86/1004.5/55/5 Apr 2014 2,499ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.
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The review scores listed above should be treated with care, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

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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. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.

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    Specifications: Sony A7S II vs Canon G1 X Mark III

    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 II Canon G1 X Mark III
    Camera Type Mirrorless system camera Fixed lens compact camera
    Camera Lens Sony E mount lenses 24-72mm f/2.8-5.6
    Launch Date September 2015 October 2017
    Launch Price USD 2,999 USD 1,299
    Sensor Specs Sony A7S II Canon G1 X Mark III
    Sensor Technology CMOS CMOS
    Sensor Format Full Frame Sensor APS-C Sensor
    Sensor Size 35.6 x 23.8 mm 22.3 x 14.9 mm
    Sensor Area 847.28 mm2 332.27 mm2
    Sensor Diagonal 42.8 mm 26.8 mm
    Crop Factor 1.0x 1.5x
    Sensor Resolution 12 Megapixels 24 Megapixels
    Image Resolution 4240 x 2832 pixels 6000 x 4000 pixels
    Pixel Pitch 8.40 μm 3.72 μm
    Pixel Density 1.42 MP/cm2 7.22 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability 4K/30p Video 1080/60p Video
    ISO Setting 100 - 102,400 ISO 100 - 25,600 ISO
    ISO Boost 50 - 409,600 ISO no Enhancement
    Image Processor BIONZ X DIGIC 7
    DXO Sensor Quality (score) 85 ..
    DXO Color Depth (bits) 23.6 ..
    DXO Dynamic Range (EV) 13.3 ..
    DXO Low Light (ISO) 2993 ..
    Screen Specs Sony A7S II Canon G1 X Mark III
    Viewfinder Type Electronic viewfinder Electronic viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.78x
    Viewfinder Resolution 2400k dots 2360k dots
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 1229k dots 1040k dots
    LCD Attachment Tilting screen Swivel screen
    Touch Input no Touchscreen Touchscreen
    Shooting Specs Sony A7S II Canon G1 X Mark III
    Focus System Contrast-detect AF On-Sensor Phase-detect
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/8000s 1/2000s
    Continuous Shooting 5 shutter flaps/s 9 shutter flaps/s
    Electronic ShutterYESno E-Shutter
    Time-Lapse Photographyno IntervalometerIntervalometer built-in
    Image StabilizationIn-body stabilizationLens-based stabilization
    Fill Flash no On-Board Flash Built-in Flash
    Storage Medium MS or SDXC cards SDXC cards
    Single or Dual Card Slots Single card slot Single card slot
    UHS card support UHS-I UHS-I
    Connectivity Specs Sony A7S II Canon G1 X Mark III
    External Flash Hotshoe Hotshoe
    USB Connector USB 2.0 USB 2.0
    HDMI Port micro HDMI micro HDMI
    Microphone Port External MIC port no MIC socket
    Headphone Socket Headphone port no Headphone port
    Wifi Support Wifi built-in Wifi built-in
    Near-Field Communication NFC built-in NFC built-in
    Bluetooth Support no Bluetooth Bluetooth built-in
    Body Specs Sony A7S II Canon G1 X Mark III
    Environmental SealingWeathersealed bodyWeathersealed body
    Battery Type Sony NP-FW50 Canon NB-13L
    Battery Life (CIPA)370 shots per charge200 shots per charge
    In-Camera Charging USB charging no USB charging
    Body Dimensions 127 x 96 x 60 mm
    (5.0 x 3.8 x 2.4 in)
    115 x 78 x 51 mm
    (4.5 x 3.1 x 2.0 in)
    Camera Weight 627 g (22.1 oz) 399 g (14.1 oz)
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