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Canon G9 X Mark II vs Sony A99 II

The Canon PowerShot G9 X Mark II and the Sony Alpha ALT-A99 II are two digital cameras that were announced, respectively, in January 2017 and September 2016. The G9X Mark II is a fixed lens compact, while the A99 II is a DSLR. The cameras are based on an one-inch (G9X Mark II) and a full frame (A99 II) sensor. The Canon has a resolution of 20 megapixels, whereas the Sony provides 42.2 MP.

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

Headline Specifications
Canon G9 X Mark II
versus
Sony A99 II
Canon G9 X Mark II   Sony A99 II
Fixed lens compact camera Digital single lens reflex
28-84mm f/2.0-4.9 Sony A mount lenses
20 MP – 1" sensor 42.2 MP – Full Frame sensor
1080/60p Video 4K/30p Video
ISO 125-12,800 ISO 100-25,600
No viewfinder, LCD framing Electronic viewfinder (2400k dots)
3.0" LCD – 1040k dots 3.0" LCD – 1229k dots
Fixed touchscreen Fully flexible screen (no touchscreen)
8.2 shutter flaps per second 12 shutter flaps per second
Lens-based stabilizationIn-body stabilization
not weather sealedWeathersealed body
235 shots per battery charge490 shots per battery charge
98 x 58 x 31 mm, 206 g 143 x 104 x 76 mm, 849 g
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Check G9X Mark II offers at
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Check A99 II offers at
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Going beyond this snapshot of core features and characteristics, what are the differences between the Canon PowerShot G9 X Mark II and the Sony Alpha ALT-A99 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 side-by-side display below illustrates the physical size and weight of the Canon G9 X Mark II and the Sony A99 II. The two cameras are presented according to their relative size. Three consecutive perspectives from the front, the top, and the back are available. All width, height and depth dimensions are rounded to the nearest millimeter.

The G9X Mark II can be obtained in two different colors (black, silver), while the A99 II is only available in black.

Size Canon G9 X Mark II vs Sony A99 II
Compare G9X Mark II versus A99 II top
Comparison G9X Mark II or A99 II rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A99 II is considerably larger (162 percent) than the Canon G9 X Mark II. It is noteworthy in this context that the A99 II is splash and dust-proof, while the G9X Mark II does not feature any corresponding weather-sealing.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the G9X Mark II has a lens built in, whereas the A99 II is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup.

Concerning battery life, the G9X Mark II gets 235 shots out of its Canon NB-13L battery, while the A99 II can take 490 images on a single charge of its Sony NP-FM500H power pack. The power pack in the G9X Mark 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.
 
Canon G9 X Mark II 98 mm 58 mm 31 mm 206 g 235 n Jan 2017 529ebay.com
2.
 
Sony A99 II 143 mm 104 mm 76 mm 849 g 490 Y Sep 2016 3,199ebay.com
3.
 
Canon SX70 127 mm 91 mm 117 mm 608 g 325 n Sep 2018 549 amazon.com
4.
 
Canon M100 108 mm 67 mm 35 mm 302 g 295 n Aug 2017 499ebay.com
5.
 
Canon SL2 122 mm 93 mm 70 mm 453 g 650 n Jun 2017 549ebay.com
6.
 
Canon G7 X Mark II 106 mm 61 mm 42 mm 319 g 265 n Feb 2016 699ebay.com
7.
 
Canon 5DS R 152 mm 116 mm 76 mm 930 g 700 Y Feb 2015 3,699ebay.com
8.
 
Canon G9 X 98 mm 58 mm 31 mm 209 g 220 n Oct 2015 529ebay.com
9.
 
Canon G7 X 103 mm 60 mm 40 mm 304 g 210 n Sep 2014 699ebay.com
10.
 
Nikon D850 146 mm 124 mm 79 mm 1005 g 1840 Y Jul 2017 3,299 amazon.com
11.
 
Sony A7R IIIA 127 mm 96 mm 74 mm 650 g 650 Y Apr 2021 3,199 amazon.com
12.
 
Sony HX99 102 mm 58 mm 36 mm 242 g 370 n Aug 2018 449ebay.com
13.
 
Sony HX95 102 mm 58 mm 36 mm 242 g 370 n Aug 2018 429ebay.com
14.
 
Sony RX100 V 102 mm 58 mm 41 mm 299 g 220 n Oct 2016 999ebay.com
15.
 
Sony A7R II 127 mm 96 mm 60 mm 625 g 290 Y Jun 2015 3,199ebay.com
16.
 
Sony A7S II 127 mm 96 mm 60 mm 627 g 370 Y Sep 2015 2,999ebay.com
17.
 
Sony RX100 102 mm 58 mm 36 mm 240 g 330 n Jun 2012 649ebay.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 naturally be influenced heavily by the price. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The G9X Mark II was launched at a lower price than the A99 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 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 associated with larger, more expensive camera bodies and lenses.

Of the two cameras under consideration, the Canon G9 X Mark II features an one-inch sensor and the Sony A99 II a full frame sensor. The sensor area in the A99 II is 643 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 2.7 and 1.0. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Canon G9 X Mark II and Sony A99 II sensor measures

With 42.2MP, the A99 II offers a higher resolution than the G9X Mark II (20MP), but the A99 II nevertheless has larger individual pixels (pixel pitch of 4.52μm versus 2.41μm for the G9X Mark II) due to its larger sensor. However, the G9X Mark II is a somewhat more recent model (by 3 months) than the A99 II, and its sensor might have benefitted from technological advances during this time that enhance the light gathering capacity of its pixel-units. Coming back to sensor resolution, it should be mentioned that the A99 II has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Sony A99 II implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A99 II for good quality output (200 dots per inch) amounts to 39.8 x 26.5 inches or 101 x 67.4 cm, for very good quality (250 dpi) 31.8 x 21.2 inches or 80.8 x 53.9 cm, and for excellent quality (300 dpi) 26.5 x 17.7 inches or 67.3 x 44.9 cm. The corresponding values for the Canon G9 X Mark II are 27.4 x 18.2 inches or 69.5 x 46.3 cm for good quality, 21.9 x 14.6 inches or 55.6 x 37.1 cm for very good quality, and 18.2 x 12.2 inches or 46.3 x 30.9 cm for excellent quality prints.

The A99 II has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

The Canon PowerShot G9 X Mark II has a native sensitivity range from ISO 125 to ISO 12800. The corresponding ISO settings for the Sony Alpha ALT-A99 II are ISO 100 to ISO 25600, with the possibility to increase the ISO range to 50-25600.

Technology-wise, both cameras are equipped with BSI-CMOS (Backside Illuminated 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.

G9X Mark II versus A99 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"). Of the two cameras under consideration, the A99 II offers substantially better image quality than the G9X Mark II (overall score 27 points higher). The advantage is based on 3.5 bits higher color depth, 0.9 EV in additional dynamic range, and 2.2 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.

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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.
 
Canon G9 X Mark II 1-inch 20.0 5472 36481080/60p21.912.552265
2.
 
Sony A99 II Full Frame 42.2 7952 53044K/30p25.413.4231792
3.
 
Canon SX70 1/2.3 20.2 5184 38884K/30p20.612.1106351
4.
 
Canon M100 APS-C 24.0 6000 40001080/60p23.512.9127278
5.
 
Canon SL2 APS-C 24.0 6000 40001080/60p23.613.4104179
6.
 
Canon G7 X Mark II 1-inch 20.0 5472 36481080/60p21.811.926062
7.
 
Canon 5DS R Full Frame 50.3 8688 57921080/30p24.612.4230886
8.
 
Canon G9 X 1-inch 20.0 5472 36481080/60p21.512.349563
9.
 
Canon G7 X 1-inch 20.0 5472 36481080/60p23.012.755671
10.
 
Nikon D850 Full Frame 45.4 8256 55044K/30p26.414.82660100
11.
 
Sony A7R IIIA Full Frame 42.2 7952 53044K/30p26.014.73523100
12.
 
Sony HX99 1/2.3 18.0 4896 36724K/30p20.612.1105851
13.
 
Sony HX95 1/2.3 18.0 4896 36724K/30p20.612.1105751
14.
 
Sony RX100 V 1-inch 20.0 5472 36484K/30p22.812.458670
15.
 
Sony A7R II Full Frame 42.2 7952 53044K/30p26.013.9343498
16.
 
Sony A7S II Full Frame 12.0 4240 28324K/30p23.613.3299385
17.
 
Sony RX100 1-inch 20.0 5472 36481080/60p22.612.439066
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 also of capturing video footage. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the A99 II provides a better video resolution than the G9X Mark II. It can shoot movie 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. For example, the A99 II has an electronic viewfinder (2400k dots), which can be very helpful when shooting in bright sunlight. In contrast, the G9X Mark II relies on live view and the rear LCD for framing. The adjacent table lists some of the other core features of the Canon G9 X Mark II and Sony A99 II along with similar information for a selection of comparators.

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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.
 
Canon G9 X Mark IInone n3.0 / 1040 fixed Y 1/2000s 8.2/s Y Y
2.
 
Sony A99 II2400 Y3.0 / 1229 full-flex n 1/8000s 12.0/s n Y
3.
 
Canon SX702360 n3.0 / 922 swivel n 1/2000s 10.0/s Y Y
4.
 
Canon M100none n3.0 / 1040 tilting Y 1/4000s 6.1/s Y n
5.
 
Canon SL2optical n3.0 / 1040 swivel Y 1/4000s 5.0/s Y n
6.
 
Canon G7 X Mark IInone n3.0 / 1040 tilting Y 1/2000s 8.0/s Y Y
7.
 
Canon 5DS Roptical Y3.2 / 1040 fixed n 1/8000s 5.0/s n n
8.
 
Canon G9 Xnone n3.0 / 1040 fixed Y 1/2000s 6.0/s Y Y
9.
 
Canon G7 Xnone n3.0 / 1040 tilting Y 1/2000s 6.5/s Y Y
10.
 
Nikon D850optical Y3.2 / 2359 tilting Y 1/8000s 9.0/s n n
11.
 
Sony A7R IIIA3686 n3.0 / 2340 tilting Y 1/8000s 10.0/s n Y
12.
 
Sony HX99638 n3.0 / 922 tilting Y 1/2000s 10.0/s Y Y
13.
 
Sony HX95638 n3.0 / 922 tilting n 1/2000s 10.0/s Y Y
14.
 
Sony RX100 V2359 n3.0 / 1229 tilting n 1/2000s 24.0/s Y Y
15.
 
Sony A7R II2400 n3.0 / 1229 tilting n 1/8000s 5.0/s n Y
16.
 
Sony A7S II2400 n3.0 / 1229 tilting n 1/8000s 5.0/s n Y
17.
 
Sony RX100none n3.0 / 1229 fixed n 1/2000s 10.0/s Y Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.
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One difference between the cameras concerns the presence of an on-board flash. The G9X Mark II has one, while the A99 II does not. While the built-in flash of the G9X Mark II is not very powerful, it can at times be useful as a fill-in light.

The A99 II 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 G9X Mark II does not have a selfie-screen.

The Canon G9 X Mark II 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 G9X Mark II writes its imaging data to SDXC cards, while the A99 II uses SDXC or Memory Stick PRO Duo cards. The A99 II features dual card slots, which can be very useful in case a memory card fails. In contrast, the G9X Mark II only has one slot. 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 Canon PowerShot G9 X Mark II and Sony Alpha ALT-A99 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
# image Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Canon G9 X Mark II-stereo / mono--micro2.0YYY
2.
 
Sony A99 IIYstereo / monoYYmicro2.0YYY
3.
 
Canon SX70-stereo / monoY-micro2.0Y-Y
4.
 
Canon M100-stereo / mono--micro2.0YYY
5.
 
Canon SL2Ystereo / monoY-mini2.0YYY
6.
 
Canon G7 X Mark II-stereo / mono--micro2.0YY-
7.
 
Canon 5DS RYmono / monoY-mini3.0---
8.
 
Canon G9 X-stereo / mono--micro2.0YY-
9.
 
Canon G7 X-stereo / mono--micro2.0YY-
10.
 
Nikon D850Ystereo / monoYYmini3.0YYY
11.
 
Sony A7R IIIAYstereo / monoYYmicro3.2YYY
12.
 
Sony HX99-stereo / mono--micro2.0YYY
13.
 
Sony HX95-stereo / mono--micro2.0YYY
14.
 
Sony RX100 V-stereo / mono--micro2.0YY-
15.
 
Sony A7R IIYstereo / monoYYmicro2.0YY-
16.
 
Sony A7S IIYstereo / monoYYmicro2.0YY-
17.
 
Sony RX100-stereo / mono--micro2.0---
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It is notable that the A99 II has a microphone port, which can help to improve the quality of audio recordings by attaching an external microphone. The G9X Mark II does not feature such a mic input.

Studio photographers will appreciate that the Sony A99 II (unlike the G9X Mark II) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the G9X Mark II and the A99 II have been discontinued, but can regularly be found used on ebay. Neither of the two has a direct successor, so they represent the end of the respective camera lines from Canon and Sony. Further information on the features and operation of the G9X Mark II and A99 II can be found, respectively, in the Canon G9 X Mark II Manual (free pdf) or the online Sony A99 II Manual.

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Review summary

So how do things add up? Is there a clear favorite between the Canon G9 X Mark II and the Sony A99 II? Which camera is better? Below is a summary of the relative strengths of each of the two contestants.

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Advantages of the Canon PowerShot G9 X Mark II:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • Ready to shoot: Comes with a built-in lens, while the A99 II requires a separate lens.
  • More compact: Is smaller (98x58mm vs 143x104mm) and thus needs less room in the bag.
  • Less heavy: Is lighter even though it comes with a built-in lens (unlike the A99 II).
  • Easier travel charging: Can be conveniently charged via its USB port.
  • Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
  • More affordable: Was introduced at a lower price, despite coming with a built-in lens.
  • More modern: Is somewhat more recent (announced 3 months after the A99 II).

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Arguments in favor of the Sony Alpha ALT-A99 II:

  • More detail: Has more megapixels (42.2 vs 20MP), which boosts linear resolution by 45%.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • Better image quality: Scores substantially higher (27 points) in the DXO overall evaluation.
  • Richer colors: Generates noticeably more natural colors (3.5 bits more color depth).
  • More dynamic range: Captures a broader range of light and dark details (0.9 EV of extra DR).
  • Better low-light sensitivity: Can shoot in dim conditions (2.2 stops ISO advantage).
  • Better video: Provides higher definition movie capture (4K/30p vs 1080/60p).
  • Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
  • 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.
  • Easier framing: Has an electronic viewfinder for image composition and settings control.
  • Easier setting verification: Features a control panel on top to check shooting parameters.
  • More detailed LCD: Has a higher resolution rear screen (1229k vs 1040k dots).
  • More flexible LCD: Has a full-flex screen for odd-angle shots in portrait or landscape orientation.
  • More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/2000s) to freeze action.
  • Faster burst: Shoots at higher frequency (12 vs 8.2 flaps/sec) to capture the decisive moment.
  • More flexible: Makes it possible to change lenses and thus to use specialty optics.
  • Longer lasting: Gets more shots (490 versus 235) out of a single battery charge.
  • Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
  • Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
  • 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 heavily discounted: Has been on the market for longer (launched in September 2016).

If the count of individual advantages (bullet points above) is taken as a guide, the A99 II is the clear winner of the contest (24 : 10 points). However, the relevance of individual strengths will vary across photographers, so that you might want to apply your own weighing scheme to the summary points when reflecting and deciding on a new camera. 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.

G9X Mark II 10:24 A99 II

How about other alternatives? Do the specifications of the Canon G9 X Mark II and the Sony A99 II place the cameras among the top in their class? Find out in the latest Best Travel-Zoom Camera and Best DSLR Camera listings whether the two cameras rank among the cream of the crop.

In any case, while the comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it says little about, for example, the shooting experience and imaging performance of the G9X Mark II and the A99 II in practical situations. At times, user reviews, such as those published at amazon, address these issues in a useful manner, but such feedback is on many occasions incomplete, inconsistent, and unreliable.

Expert reviews

This is why hands-on reviews by experts are important. 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
# image  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Canon G9 X Mark II4/5..4/575/1004.5/54.5/5 Jan 2017 529ebay.com
2.
 
Sony A99 II....4.5/585/1004.5/54.5/5 Sep 2016 3,199ebay.com
3.
 
Canon SX70..+ +3.5/5..3.5/53.5/5 Sep 2018 549 amazon.com
4.
 
Canon M1003/5+....4/53.5/5 Aug 2017 499ebay.com
5.
 
Canon SL24/5+ +4/578/1004.5/54.5/5 Jun 2017 549ebay.com
6.
 
Canon G7 X Mark II4.5/5+ +..81/1004.5/54.5/5 Feb 2016 699ebay.com
7.
 
Canon 5DS R5/5+..83/1005/54.5/5 Feb 2015 3,699ebay.com
8.
 
Canon G9 X3.5/5+ +....4.5/54.5/5 Oct 2015 529ebay.com
9.
 
Canon G7 X4/5+ +..77/1004.5/54.5/5 Sep 2014 699ebay.com
10.
 
Nikon D8504.5/5+ +5/589/1004.5/55/5 Jul 2017 3,299 amazon.com
11.
 
Sony A7R IIIA..+ +4/590/1004.5/55/5 Apr 2021 3,199 amazon.com
12.
 
Sony HX99........4/54.5/5 Aug 2018 449ebay.com
13.
 
Sony HX95............ Aug 2018 429ebay.com
14.
 
Sony RX100 V4.5/5+ +..83/1004/54.5/5 Oct 2016 999ebay.com
15.
 
Sony A7R II5/5+ +5/590/1005/55/5 Jun 2015 3,199ebay.com
16.
 
Sony A7S II5/5+....4.5/55/5 Sep 2015 2,999ebay.com
17.
 
Sony RX1005/5+ +..78/1004/55/5 Jun 2012 649ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.
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The above review scores should be interpreted 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. Thus, a score needs to be put into the context of the launch date and the launch price 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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Check A99 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 a corresponding selection in the search boxes below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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    Specifications: Canon G9 X Mark II vs Sony A99 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 Canon G9 X Mark II Sony A99 II
    Camera Type Fixed lens compact camera Digital single lens reflex
    Camera Lens 28-84mm f/2.0-4.9 Sony A mount lenses
    Launch Date January 2017 September 2016
    Launch Price USD 529 USD 3,199
    Sensor Specs Canon G9 X Mark II Sony A99 II
    Sensor Technology BSI-CMOS BSI-CMOS
    Sensor Format 1" Sensor Full Frame Sensor
    Sensor Size 13.2 x 8.8 mm 35.9 x 24.0 mm
    Sensor Area 116.16 mm2 861.6 mm2
    Sensor Diagonal 15.9 mm 43.2 mm
    Crop Factor 2.7x 1.0x
    Sensor Resolution 20 Megapixels 42.2 Megapixels
    Image Resolution 5472 x 3648 pixels 7952 x 5304 pixels
    Pixel Pitch 2.41 μm 4.52 μm
    Pixel Density 17.18 MP/cm2 4.90 MP/cm2
    Moiré control Anti-Alias filter no AA filter
    Movie Capability 1080/60p Video 4K/30p Video
    ISO Setting 125 - 12,800 ISO 100 - 25,600 ISO
    ISO Boost no Enhancement 50 - 25,600 ISO
    Image Processor DIGIC 7 BIONZ X
    DXO Sensor Quality (score) 65 92
    DXO Color Depth (bits) 21.9 25.4
    DXO Dynamic Range (EV) 12.5 13.4
    DXO Low Light (ISO) 522 2317
    Screen Specs Canon G9 X Mark II Sony A99 II
    Viewfinder Type no viewfinder Electronic viewfinder
    Viewfinder Field of View 100%
    Viewfinder Magnification 0.78x
    Viewfinder Resolution 2400k dots
    Top-Level Screen no Top Display Control Panel
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 1040k dots 1229k dots
    LCD Attachment Fixed screen Fully flexible screen
    Touch Input Touchscreen no Touchscreen
    Shooting Specs Canon G9 X Mark II Sony A99 II
    Focus System Contrast-detect AF Phase-detect AF
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/2000s 1/8000s
    Continuous Shooting 8.2 shutter flaps/s 12 shutter flaps/s
    Time-Lapse PhotographyIntervalometer built-inno Intervalometer
    Image StabilizationLens-based stabilizationIn-body stabilization
    Fill Flash Built-in Flash no On-Board Flash
    Storage Medium SDXC cards MS or SDXC cards
    Single or Dual Card Slots Single card slot Dual card slots
    UHS card support UHS-I UHS-I
    Connectivity Specs Canon G9 X Mark II Sony A99 II
    External Flash no Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 2.0 USB 2.0
    HDMI Port micro HDMI micro HDMI
    Microphone Port no MIC socket External MIC port
    Headphone Socket no Headphone port Headphone port
    Wifi Support Wifi built-in Wifi built-in
    Near-Field Communication NFC built-in NFC built-in
    Bluetooth Support Bluetooth built-in Bluetooth built-in
    Body Specs Canon G9 X Mark II Sony A99 II
    Environmental Sealingnot weather sealedWeathersealed body
    Battery Type Canon NB-13L Sony NP-FM500H
    Battery Life (CIPA)235 shots per charge490 shots per charge
    In-Camera Charging USB charging no USB charging
    Body Dimensions 98 x 58 x 31 mm
    (3.9 x 2.3 x 1.2 in)
    143 x 104 x 76 mm
    (5.6 x 4.1 x 3.0 in)
    Camera Weight 206 g (7.3 oz) 849 g (29.9 oz)
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