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Panasonic G2 vs Sony A9

The Panasonic Lumix DMC-G2 and the Sony Alpha A9 are two digital cameras that were revealed to the public, respectively, in March 2010 and April 2017. Both the G2 and the A9 are mirrorless interchangeable lens cameras that are based on a Four Thirds (G2) and a full frame (A9) sensor. The Panasonic has a resolution of 12 megapixels, whereas the Sony provides 24 MP.

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

Headline Specifications
Panasonic G2
versus
Sony A9
Panasonic G2   Sony A9
Mirrorless system camera Mirrorless system camera
Micro Four Thirds lenses Sony E mount lenses
12 MP – Four Thirds sensor 24 MP – Full Frame sensor
720/30p Video 4K/30p Video
ISO 100-6,400 ISO 100-51,200 (50 - 204,800)
Electronic viewfinder (1440k dots) Electronic viewfinder (3686k dots)
3.0" LCD – 460k dots 3.0" LCD – 1440k dots
Swivel touchscreen Tilting touchscreen
2.6 shutter flaps per second 20 shutter flaps per second
Lens stabilization onlyIn-body stabilization
not weather sealedWeathersealed body
360 shots per battery charge650 shots per battery charge
124 x 84 x 74 mm, 428 g 127 x 96 x 63 mm, 673 g
logo
Check G2 offers at
ebay.com
logo
Check A9 offers at
ebay.com

Going beyond this snapshot of core features and characteristics, what are the differences between the Panasonic Lumix DMC-G2 and the Sony Alpha A9? 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

An illustration of the physical size and weight of the Panasonic G2 and the Sony A9 is provided in the side-by-side display below. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. All width, height and depth measures are rounded to the nearest millimeter.

The G2 can be obtained in three different colors (black, blue, red), while the A9 is only available in black.

Size Panasonic G2 vs Sony A9
Compare G2 versus A9 top
Comparison G2 or A9 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A9 is notably larger (17 percent) than the Panasonic G2. Moreover, the A9 is substantially heavier (57 percent) than the G2. It is noteworthy in this context that the A9 is splash and dust-proof, while the G2 does not feature any corresponding weather-sealing.

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 compare the optics available for the two cameras in the Micro Four Thirds Lens Catalog (G2) and the Sony FE Lens Catalog (A9). Mirrorless cameras, such as the two under consideration, have the additional advantage of having a short flange to focal plane distance, which makes it possible to mount many lenses from other systems onto the camera via adapters.

Concerning battery life, the G2 gets 360 shots out of its Panasonic DMW-BLB13 battery, while the A9 can take 650 images on a single charge of its Sony NP-FZ100 power pack. The power pack in the A9 can be charged via the USB port, which can be very convenient when travelling.

The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. 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
  empty Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price
Street
Price
1.
 
Panasonic G2 124 mm 84 mm 74 mm 428 g 360 i Mar 2010 US$ 599ebay.com
2.
 
Sony A9 127 mm 96 mm 63 mm 673 g 650 i Apr 2017 US$ 4 499ebay.com
3.
 
Olympus E-450 130 mm 91 mm 53 mm 440 g 500 i Mar 2009 US$ 499ebay.com
4.
 
Panasonic G1 124 mm 84 mm 45 mm 360 g 410 i Sep 2008 US$ 599ebay.com
5.
 
Panasonic G3 115 mm 84 mm 47 mm 336 g 270 i May 2011 US$ 599ebay.com
6.
 
Panasonic G6 122 mm 85 mm 71 mm 390 g 340 i Apr 2013 US$ 599ebay.com
7.
 
Panasonic G10 124 mm 84 mm 74 mm 388 g 380 i Mar 2010 US$ 499ebay.com
8.
 
Panasonic GF1 119 mm 71 mm 36 mm 385 g 380 i Sep 2009 US$ 749ebay.com
9.
 
Panasonic GF2 113 mm 68 mm 33 mm 310 g 300 i Nov 2010 US$ 549ebay.com
10.
 
Panasonic GF3 108 mm 67 mm 32 mm 264 g 300 i Jun 2011 US$ 549ebay.com
11.
 
Panasonic GH1 124 mm 90 mm 45 mm 385 g 300 i Mar 2009 US$ 899ebay.com
12.
 
Panasonic GH2 124 mm 90 mm 76 mm 442 g 330 i Sep 2010 US$ 899ebay.com
13.
 
Sony A7 II 127 mm 96 mm 60 mm 599 g 350 i Nov 2014 US$ 1 999ebay.com
14.
 
Sony A7 III 127 mm 96 mm 74 mm 650 g 610 i Feb 2018 US$ 1 999 amazon.com
15.
 
Sony A7R III 127 mm 96 mm 74 mm 650 g 650 i Oct 2017 US$ 3 199ebay.com
16.
 
Sony A7R V 131 mm 97 mm 82 mm 723 g 530 i Oct 2022 US$ 3 899 amazon.com
17.
 
Sony A9 II 129 mm 96 mm 76 mm 678 g 690 i Oct 2019 US$ 4 499 amazon.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
  empty Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price
Street
Price
  empty Camera
Model

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 G2 was launched at a markedly lower price (by 87 percent) than the A9, 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.

Sensor comparison

The imaging sensor is at the core of digital cameras and its size is one of the main determining factors 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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Panasonic G2 features a Four Thirds sensor and the Sony A9 a full frame sensor. The sensor area in the A9 is 276 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 2.0 and 1.0. The sensor in the G2 has a native 4:3 aspect ratio, while the one in the A9 offers a 3:2 aspect.

Panasonic G2 and Sony A9 sensor measures

With 24MP, the A9 offers a higher resolution than the G2 (12MP), but the A9 nevertheless has larger individual pixels (pixel pitch of 5.94μm versus 4.33μm for the G2) due to its larger sensor. Moreover, the A9 is a much more recent model (by 7 years and 1 month) than the G2, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixel-units.

The resolution advantage of the Sony A9 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A9 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 Panasonic G2 are 20 x 15 inches or 50.8 x 38.1 cm for good quality, 16 x 12 inches or 40.6 x 30.5 cm for very good quality, and 13.3 x 10 inches or 33.9 x 25.4 cm for excellent quality prints.

The A9 has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

The Panasonic Lumix DMC-G2 has a native sensitivity range from ISO 100 to ISO 6400. The corresponding ISO settings for the Sony Alpha A9 are ISO 100 to ISO 51200, with the possibility to increase the ISO range to 50-204800.

In terms of underlying technology, the G2 is build around a CMOS sensor, while the A9 uses a Stacked BSI-CMOS imager. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.

G2 versus A9 MP

Consistent information on actual sensor performance is available from DXO Mark for many cameras. 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 A9 offers substantially better image quality than the G2 (overall score 39 points higher). The advantage is based on 3.7 bits higher color depth, 3 EV in additional dynamic range, and 2.8 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
  empty Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Panasonic G2 Four Thirds 12.0 4000 3000720/30p21.210.349353
2.
 
Sony A9 Full Frame 24.0 6000 40004K/30p24.913.3351792
3.
 
Olympus E-450 Four Thirds 10.0 3648 2736i21.510.551256
4.
 
Panasonic G1 Four Thirds 12.0 4000 3000i21.110.346353
5.
 
Panasonic G3 Four Thirds 15.8 4592 34481080/60i21.010.666756
6.
 
Panasonic G6 Four Thirds 15.9 4608 34561080/60p21.311.563961
7.
 
Panasonic G10 Four Thirds 12.0 4000 3000720/30p21.210.141152
8.
 
Panasonic GF1 Four Thirds 12.0 4000 3000720/30p21.210.351354
9.
 
Panasonic GF2 Four Thirds 12.0 4000 30001080/60i21.210.350654
10.
 
Panasonic GF3 Four Thirds 12.0 4000 30001080/60i20.610.145950
11.
 
Panasonic GH1 Four Thirds 12.0 4000 30001080/24p21.611.677264
12.
 
Panasonic GH2 Four Thirds 15.9 4608 34561080/60i21.211.365560
13.
 
Sony A7 II Full Frame 24.0 6000 40001080/60p24.913.6244990
14.
 
Sony A7 III Full Frame 24.0 6000 40004K/30p25.014.7373096
15.
 
Sony A7R III Full Frame 42.2 7952 53044K/30p26.014.73523100
16.
 
Sony A7R V Full Frame 60.2 9504 63368k/24p26.514.83187100
17.
 
Sony A9 II Full Frame 24.0 6000 40004K/30p25.014.0343493
  empty Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
  empty Camera
Model

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 A9 provides a better video resolution than the G2. It can shoot movie footage at 4K/30p, while the Panasonic is limited to 720/30p.

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. The two cameras under review are similar with respect to both having an electronic viewfinder. However, the one in the A9 offers a substantially higher resolution than the one in the G2 (3686k vs 1440k dots). The following table reports on some other key feature differences and similarities of the Panasonic G2, the Sony A9, and comparable 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.
 
Panasonic G21440 i3.0 / 460 swivel i 1/4000s 2.6/s i i
2.
 
Sony A93686 i3.0 / 1440 tilting i 1/8000s 20.0/s i i
3.
 
Olympus E-450optical i2.7 / 215 fixed i 1/4000s 3.5/s i i
4.
 
Panasonic G11440 i3.0 / 460 swivel i 1/4000s 3.0/s i i
5.
 
Panasonic G31440 i3.0 / 460 swivel i 1/4000s 4.0/s i i
6.
 
Panasonic G61440 i3.0 / 1036 swivel i 1/4000s 7.0/s i i
7.
 
Panasonic G10202 i3.0 / 460 fixed i 1/4000s 2.6/s i i
8.
 
Panasonic GF1optional i3.0 / 460 fixed i 1/4000s 3.0/s i i
9.
 
Panasonic GF2optional i3.0 / 460 fixed i 1/4000s 2.6/s i i
10.
 
Panasonic GF3i i3.0 / 460 fixed i 1/4000s 3.2/s i i
11.
 
Panasonic GH11440 i3.0 / 460 swivel i 1/4000s 3.0/s i i
12.
 
Panasonic GH21534 i3.0 / 460 swivel i 1/4000s 3.0/s i i
13.
 
Sony A7 II2400 i3.0 / 1230 tilting i 1/8000s 5.0/s i i
14.
 
Sony A7 III2359 i3.0 / 922 tilting i 1/8000s 10.0/s i i
15.
 
Sony A7R III3686 i3.0 / 1440 tilting i 1/8000s 10.0/s i i
16.
 
Sony A7R V9440 i3.2 / 2100 full-flex i 1/8000s 10.0/s i i
17.
 
Sony A9 II3686 i3.0 / 1440 tilting i 1/8000s 20.0/s i i
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.
  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
  empty Camera
Model

One difference between the cameras concerns the presence of an on-board flash. The G2 has one, while the A9 does not. While the built-in flash of the G2 is not very powerful, it can at times be useful as a fill-in light.

The G2 has an articulated LCD that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in snapping selfies. In contrast, the A9 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 A9 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 G2 writes its imaging data to SDXC cards, while the A9 uses SDXC or Memory Stick PRO Duo cards. The A9 features dual card slots, which can be very useful in case a memory card fails. In contrast, the G2 only has one slot. The A9 supports UHS-II cards on its first slot and UHS-I on its second one, while the G2 cannot take advantage of Ultra High Speed SD cards.

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 Panasonic Lumix DMC-G2 and Sony Alpha A9 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.
 
Panasonic G2istereo / monoiimini2.0iii
2.
 
Sony A9istereo / monoiimicro2.0iii
3.
 
Olympus E-450ii / iiii2.0iii
4.
 
Panasonic G1ii / iiimini2.0iii
5.
 
Panasonic G3istereo / monoiimini2.0iii
6.
 
Panasonic G6istereo / monoiimini2.0iii
7.
 
Panasonic G10imono / iiimini2.0iii
8.
 
Panasonic GF1imono / monoiimini2.0iii
9.
 
Panasonic GF2istereo / monoiimini2.0iii
10.
 
Panasonic GF3istereo / monoiimini2.0iii
11.
 
Panasonic GH1istereo / iiimini2.0iii
12.
 
Panasonic GH2istereo / monoiimini2.0iii
13.
 
Sony A7 IIistereo / monoiimicro2.0iii
14.
 
Sony A7 IIIistereo / monoiimicro3.1iii
15.
 
Sony A7R IIIistereo / monoiimicro3.1iii
16.
 
Sony A7R Vistereo / monoiifull3.2iii
17.
 
Sony A9 IIistereo / monoiimicro3.1iii
  empty Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
  empty Camera
Model

It is notable that the A9 offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the G2 does not provide wifi capability.

Studio photographers will appreciate that the Sony A9 (unlike the G2) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the G2 and the A9 have been discontinued, but can regularly be found used on ebay. The G2 was replaced by the Panasonic G3, while the A9 was followed by the Sony A9 II. Further information on the features and operation of the G2 and A9 can be found, respectively, in the Panasonic G2 Manual (free pdf) or the online Sony A9 Manual.

Review summary

So how do things add up? Is the Panasonic G2 better than the Sony A9 or vice versa? Below is a summary of the relative strengths of each of the two contestants.

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Arguments in favor of the Panasonic Lumix DMC-G2:

  • More flexible LCD: Has a swivel 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.
  • More compact: Is smaller (124x84mm vs 127x96mm) and thus needs less room in the bag.
  • Less heavy: Is lighter (by 245g or 36 percent) and hence easier to carry around.
  • Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
  • More affordable: Was introduced into a lower priced category (87 percent cheaper at launch).
  • More heavily discounted: Has been available for much longer (launched in March 2010).

ilogo

Reasons to prefer the Sony Alpha A9:

  • More detail: Has more megapixels (24 vs 12MP), which boosts linear resolution by 44%.
  • Better image quality: Scores substantially higher (39 points) in the DXO overall evaluation.
  • Richer colors: Generates noticeably more natural colors (3.7 bits more color depth).
  • More dynamic range: Captures a broader range of light and dark details (3 EV of extra DR).
  • Better low-light sensitivity: Can shoot in dim conditions (2.8 stops ISO advantage).
  • Better video: Provides higher definition movie capture (4K/30p vs 720/30p).
  • 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.
  • More detailed viewfinder: Has higher resolution electronic viewfinder (3686k vs 1440k dots).
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.78x vs 0.70x).
  • More detailed LCD: Has a higher resolution rear screen (1440k vs 460k dots).
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
  • Faster burst: Shoots at higher frequency (20 vs 2.6 flaps/sec) to capture the decisive moment.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • Longer lasting: Gets more shots (650 versus 360) out of a single battery charge.
  • Easier travel charging: Can be conveniently charged via its USB port.
  • Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
  • Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
  • 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.
  • Easier wireless transfer: Supports Bluetooth for image sharing without cables.
  • 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.
  • Faster buffer clearing: Supports Ultra High Speed (UHS-II and UHS-I) SDXC cards.
  • More modern: Reflects 7 years and 1 month of technical progress since the G2 launch.

If the number of relative strengths (bullet points above) is taken as a guide, the A9 is the clear winner of the contest (26 : 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. 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.

G2 07:26 A9

How about other alternatives? Do the specifications of the Panasonic G2 and the Sony A9 place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera listing 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 G2 and the A9 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 table below provides a synthesis of the camera assessments of some of the best known photo-gear 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
Street
Price
1.
 
Panasonic G2......72/1004/54.5/5 Mar 2010 US$ 599ebay.com
2.
 
Sony A95/5+ +4.8/589/1005/55/5 Apr 2017 US$ 4 499ebay.com
3.
 
Olympus E-450........4/54/5 Mar 2009 US$ 499ebay.com
4.
 
Panasonic G1..+ +..70/1004/54.5/5 Sep 2008 US$ 599ebay.com
5.
 
Panasonic G33/5+ +..75/1004.5/55/5 May 2011 US$ 599ebay.com
6.
 
Panasonic G64/5+ +....5/54.5/5 Apr 2013 US$ 599ebay.com
7.
 
Panasonic G103/5....70/1004/54/5 Mar 2010 US$ 499ebay.com
8.
 
Panasonic GF1..85/100..69/1004.5/54.5/5 Sep 2009 US$ 749ebay.com
9.
 
Panasonic GF23/582/100..70/1004.5/54.5/5 Nov 2010 US$ 549ebay.com
10.
 
Panasonic GF33/582/100..71/1004.5/54/5 Jun 2011 US$ 549ebay.com
11.
 
Panasonic GH1..+ +..72/1004.5/54.5/5 Mar 2009 US$ 899ebay.com
12.
 
Panasonic GH25/5+ +..79/1004.5/55/5 Sep 2010 US$ 899ebay.com
13.
 
Sony A7 II5/5+4/582/1004.5/55/5 Nov 2014 US$ 1 999ebay.com
14.
 
Sony A7 III..+ +4.5/589/1005/55/5 Feb 2018 US$ 1 999 amazon.com
15.
 
Sony A7R III..+ +4/590/1004.5/55/5 Oct 2017 US$ 3 199ebay.com
16.
 
Sony A7R V5/5+ +4.5/592/100.... Oct 2022 US$ 3 899 amazon.com
17.
 
Sony A9 II....5/590/1005/55/5 Oct 2019 US$ 4 499 amazon.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.
  empty  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price
Street
Price
  empty  Camera 
 Model 

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. It should also be noted that some of the review sites have over time altered the way they render their verdicts.

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Other camera comparisons

Did this review help to inform your camera decision process? In case you would like to check on the differences and similarities of other camera models, just make your choice using the following search menu. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.

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  • Canon 70D
  • Canon 77D
  • Canon 80D
  • Canon 90D
  • Canon D30
  • Canon D60
  • Canon G1 X
  • Canon G1 X Mark II
  • Canon G1 X Mark III
  • Canon G3 X
  • Canon G5 X
  • Canon G5 X Mark II
  • Canon G7 X
  • Canon G7 X Mark II
  • Canon G7 X Mark III
  • Canon G9 X
  • Canon G9 X Mark II
  • Canon G12
  • Canon G15
  • Canon G16
  • Canon M
  • Canon M3
  • Canon M5
  • Canon M6
  • Canon M6 Mark II
  • Canon M10
  • Canon M50
  • Canon M50 Mark II
  • Canon M100
  • Canon M200
  • Canon R
  • Canon R1
  • Canon R3
  • Canon R5
  • Canon R5 Mark II
  • Canon R5 C
  • Canon R6
  • Canon R6 Mark II
  • Canon R7
  • Canon R8
  • Canon R10
  • Canon R50
  • Canon R50 V
  • Canon R100
  • Canon RP
  • Canon S120
  • Canon SL1
  • Canon SL2
  • Canon SL3
  • Canon SX1
  • Canon SX10
  • Canon SX20
  • Canon SX30
  • Canon SX40
  • Canon SX50
  • Canon SX60
  • Canon SX70
  • Canon SX400
  • Canon SX410
  • Canon SX420
  • Canon SX430
  • Canon SX500
  • Canon SX510
  • Canon SX520
  • Canon SX530
  • Canon SX540
  • Canon SX600
  • Canon SX610
  • Canon SX620
  • Canon SX700
  • Canon SX710
  • Canon SX720
  • Canon SX730
  • Canon SX740
  • Canon Rebel
  • Canon T1i
  • Canon T2i
  • Canon T3
  • Canon T3i
  • Canon T4i
  • Canon T5
  • Canon T5i
  • Canon T6
  • Canon T6i
  • Canon T6s
  • Canon T7
  • Canon T7i
  • Canon T8i
  • Canon T100
  • Canon V1
  • Canon XC10
  • Canon XS
  • Canon XSi
  • Canon XT
  • Canon XTi
  • Contax N Digital
  • Epson R-D1
  • Fujifilm GFX 50R
  • Fujifilm GFX 50S
  • Fujifilm GFX 50S II
  • Fujifilm GFX 100
  • Fujifilm GFX 100 II
  • Fujifilm GFX 100RF
  • Fujifilm GFX 100S
  • Fujifilm GFX 100S II
  • Fujifilm X-A1
  • Fujifilm X-A2
  • Fujifilm X-A3
  • Fujifilm X-A5
  • Fujifilm X-A7
  • Fujifilm X-A10
  • Fujifilm X-E1
  • Fujifilm X-E2
  • Fujifilm X-E2S
  • Fujifilm X-E3
  • Fujifilm X-E4
  • Fujifilm X-E5
  • Fujifilm X-H1
  • Fujifilm X-H2
  • Fujifilm X-H2S
  • Fujifilm X-M1
  • Fujifilm X-M5
  • Fujifilm X-Pro1
  • Fujifilm X-Pro2
  • Fujifilm X-Pro3
  • Fujifilm X-S10
  • Fujifilm X-S20
  • Fujifilm X-T1
  • Fujifilm X-T2
  • Fujifilm X-T3
  • Fujifilm X-T4
  • Fujifilm X-T5
  • Fujifilm X-T10
  • Fujifilm X-T20
  • Fujifilm X-T30
  • Fujifilm X-T30 II
  • Fujifilm X-T50
  • Fujifilm X-T100
  • Fujifilm X-T200
  • Fujifilm X10
  • Fujifilm X20
  • Fujifilm X30
  • Fujifilm X70
  • Fujifilm X100
  • Fujifilm X100S
  • Fujifilm X100T
  • Fujifilm X100F
  • Fujifilm X100V
  • Fujifilm X100VI
  • Fujifilm XF10
  • Fujifilm XQ1
  • Fujifilm XQ2
  • Fujifilm XP120
  • Fujifilm XP130
  • Fujifilm XP140
  • Hasselblad X1D
  • Hasselblad X1D II
  • Hasselblad X2D 100C
  • Kodak AZ901
  • Kodak S-1
  • Leica C-LUX
  • Leica CL
  • Leica D-LUX Typ 109
  • Leica D-LUX 5
  • Leica D-LUX 6
  • Leica D-LUX 7
  • Leica D-LUX 8
  • Leica Digilux 3
  • Leica M Typ 240
  • Leica M-E Typ 240
  • Leica M Typ 262
  • Leica M8
  • Leica M9
  • Leica M10
  • Leica M10-P
  • Leica M10-R
  • Leica M11
  • Leica Q Typ 116
  • Leica Q2
  • Leica Q3
  • Leica S1
  • Leica S2
  • Leica S3
  • Leica S Typ 006
  • Leica S-E Typ 006
  • Leica S Typ 007
  • Leica SL
  • Leica SL2
  • Leica SL2-S
  • Leica SL3
  • Leica SL3-S
  • Leica T
  • Leica TL
  • Leica TL2
  • Leica V-LUX 1
  • Leica V-LUX 2
  • Leica V-LUX 3
  • Leica V-LUX 4
  • Leica V-LUX Typ 114
  • Leica V-LUX 5
  • Leica X1
  • Leica X2
  • Leica X Vario
  • Leica X Typ 113
  • Leica X-U Typ 113
  • Leitz Ur-Leica
  • Nikon 1 J4
  • Nikon 1 J5
  • Nikon 1 V1
  • Nikon 1 V2
  • Nikon 1 V3
  • Nikon Coolpix A
  • Nikon A1000
  • Nikon B500
  • Nikon B600
  • Nikon B700
  • Nikon D1
  • Nikon D1H
  • Nikon D1X
  • Nikon D2H
  • Nikon D2X
  • Nikon D2Xs
  • Nikon D3
  • Nikon D3S
  • Nikon D3X
  • Nikon D4
  • Nikon D4S
  • Nikon D5
  • Nikon D6
  • Nikon D40
  • Nikon D40X
  • Nikon D50
  • Nikon D60
  • Nikon D70
  • Nikon D70s
  • Nikon D80
  • Nikon D90
  • Nikon D100
  • Nikon D200
  • Nikon D300
  • Nikon D300S
  • Nikon D500
  • Nikon D600
  • Nikon D610
  • Nikon D700
  • Nikon D750
  • Nikon D780
  • Nikon D800
  • Nikon D800E
  • Nikon D810
  • Nikon D850
  • Nikon D3000
  • Nikon D3100
  • Nikon D3200
  • Nikon D3300
  • Nikon D3400
  • Nikon D3500
  • Nikon D5000
  • Nikon D5100
  • Nikon D5200
  • Nikon D5300
  • Nikon D5500
  • Nikon D5600
  • Nikon D7000
  • Nikon D7100
  • Nikon D7200
  • Nikon D7500
  • Nikon Df
  • Nikon L840
  • Nikon P900
  • Nikon P950
  • Nikon P1000
  • Nikon P1100
  • Nikon P7800
  • Nikon W150
  • Nikon W300
  • Nikon Z5
  • Nikon Z5 II
  • Nikon Z6
  • Nikon Z6 II
  • Nikon Z6 III
  • Nikon Z7
  • Nikon Z7 II
  • Nikon Z8
  • Nikon Z9
  • Nikon Z30
  • Nikon Z50
  • Nikon Z50 II
  • Nikon Zf
  • Nikon Z fc
  • Olympus E-1
  • Olympus E-3
  • Olympus E-5
  • Olympus E-30
  • Olympus E-300
  • Olympus E-330
  • Olympus E-400
  • Olympus E-410
  • Olympus E-420
  • Olympus E-450
  • Olympus E-500
  • Olympus E-510
  • Olympus E-520
  • Olympus E-600
  • Olympus E-620
  • Olympus E-M1
  • Olympus E-M1 II
  • Olympus E-M1 III
  • Olympus E-M1X
  • Olympus E-M5
  • Olympus E-M5 II
  • Olympus E-M5 III
  • Olympus E-M10
  • Olympus E-M10 II
  • Olympus E-M10 III
  • Olympus E-M10 IV
  • Olympus E-P1
  • Olympus E-P2
  • Olympus E-P3
  • Olympus E-P5
  • Olympus E-P7
  • Olympus E-PL1
  • Olympus E-PL2
  • Olympus E-PL3
  • Olympus E-PL5
  • Olympus E-PL6
  • Olympus E-PL7
  • Olympus E-PL8
  • Olympus E-PL9
  • Olympus E-PL10
  • Olympus E-PM1
  • Olympus E-PM2
  • Olympus PEN-F
  • Olympus Stylus 1
  • Olympus Stylus 1s
  • Olympus TG-4
  • Olympus TG-5
  • Olympus TG-6
  • Olympus XZ-1
  • Olympus XZ-2
  • OM System OM-1
  • OM System OM-1 II
  • OM System OM-3
  • OM System OM-5
  • OM System OM-5 II
  • OM System TG-7
  • Panasonic FZ80
  • Panasonic FZ80D
  • Panasonic FZ100
  • Panasonic FZ150
  • Panasonic FZ200
  • Panasonic FZ300
  • Panasonic FZ1000
  • Panasonic FZ1000 II
  • Panasonic FZ2500
  • Panasonic G1
  • Panasonic G2
  • Panasonic G3
  • Panasonic G5
  • Panasonic G6
  • Panasonic G7
  • Panasonic G9
  • Panasonic G9 II
  • Panasonic G10
  • Panasonic G85
  • Panasonic G97
  • Panasonic G95
  • Panasonic G100
  • Panasonic GF1
  • Panasonic GF2
  • Panasonic GF3
  • Panasonic GF5
  • Panasonic GF6
  • Panasonic GF7
  • Panasonic GH1
  • Panasonic GH2
  • Panasonic GH3
  • Panasonic GH4
  • Panasonic GH5
  • Panasonic GH5 II
  • Panasonic GH5s
  • Panasonic GH6
  • Panasonic GH7
  • Panasonic GM1
  • Panasonic GM5
  • Panasonic GX1
  • Panasonic GX7
  • Panasonic GX8
  • Panasonic GX9
  • Panasonic GX85
  • Panasonic GX850
  • Panasonic L1
  • Panasonic L10
  • Panasonic LF1
  • Panasonic LX5
  • Panasonic LX7
  • Panasonic LX10
  • Panasonic LX100
  • Panasonic LX100 II
  • Panasonic S1
  • Panasonic S1 II
  • Panasonic S1H
  • Panasonic S1R
  • Panasonic S1R II
  • Panasonic S5
  • Panasonic S5 II
  • Panasonic S9
  • Panasonic TS7
  • Panasonic ZS70
  • Panasonic ZS80
  • Panasonic ZS100
  • Panasonic ZS200
  • Pentax 645D
  • Pentax 645Z
  • Pentax K-1
  • Pentax K-1 II
  • Pentax K-3
  • Pentax K-3 II
  • Pentax K-3 III
  • Pentax K-5
  • Pentax K-5 II
  • Pentax K-30
  • Pentax K-50
  • Pentax K-70
  • Pentax K-500
  • Pentax KP
  • Pentax K-S1
  • Pentax K-S2
  • Pentax MX-1
  • Pentax Q
  • Pentax WG-8
  • Pentax WG-90
  • Pentax WG-1000
  • Ricoh GR
  • Ricoh GR II
  • Ricoh GR III
  • Ricoh GR IIIx
  • Ricoh WG-6
  • Ricoh WG-60
  • Samsung NX1
  • Samsung NX30
  • Samsung NX500
  • Sigma fp
  • Sigma fp L
  • Sony A1
  • Sony A1 II
  • Sony A7
  • Sony A7 II
  • Sony A7 III
  • Sony A7 IV
  • Sony A7C
  • Sony A7C II
  • Sony A7C R
  • Sony A7R
  • Sony A7R II
  • Sony A7R III
  • Sony A7R IIIA
  • Sony A7R IV
  • Sony A7R IVA
  • Sony A7R V
  • Sony A7S
  • Sony A7S II
  • Sony A7S III
  • Sony A9
  • Sony A9 II
  • Sony A9 III
  • Sony A58
  • Sony A68
  • Sony A77
  • Sony A77 II
  • Sony A99
  • Sony A99 II
  • Sony A850
  • Sony A900
  • Sony A3000
  • Sony A5000
  • Sony A5100
  • Sony A6000
  • Sony A6100
  • Sony A6300
  • Sony A6400
  • Sony A6500
  • Sony A6600
  • Sony A6700
  • Sony H200
  • Sony H300
  • Sony H400
  • Sony HX80
  • Sony HX90V
  • Sony HX95
  • Sony HX99
  • Sony HX350
  • Sony HX400V
  • Sony NEX-3
  • Sony NEX-3N
  • Sony NEX-5
  • Sony NEX-5N
  • Sony NEX-5R
  • Sony NEX-5T
  • Sony NEX-6
  • Sony NEX-7
  • Sony NEX-C3
  • Sony NEX-F3
  • Sony RX0
  • Sony RX0 II
  • Sony RX1
  • Sony RX1R
  • Sony RX1R II
  • Sony RX1R III
  • Sony RX10
  • Sony RX10 II
  • Sony RX10 III
  • Sony RX10 IV
  • Sony RX100
  • Sony RX100 II
  • Sony RX100 III
  • Sony RX100 IV
  • Sony RX100 V
  • Sony RX100 VI
  • Sony RX100 VII
  • Sony WX800
  • Sony ZV-1
  • Sony ZV-1 II
  • Sony ZV-1F
  • Sony ZV-E1
  • Sony ZV-E10
  • Sony ZV-E10 II
  • YI M1
  • Zeiss ZX1
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Specifications: Panasonic G2 vs Sony A9

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 Panasonic G2 Sony A9
Camera Type Mirrorless system camera Mirrorless system camera
Camera Lens Micro Four Thirds lenses Sony E mount lenses
Launch Date March 2010 April 2017
Launch Price USD 599 USD 4,499
Sensor Specs Panasonic G2 Sony A9
Sensor Technology CMOS Stacked BSI-CMOS
Sensor Format Four Thirds Sensor Full Frame Sensor
Sensor Size 17.3 x 13.0 mm 35.6 x 23.8 mm
Sensor Area 224.9 mm2 847.28 mm2
Sensor Diagonal 21.6 mm 42.8 mm
Crop Factor 2.0x 1.0x
Sensor Resolution 12 Megapixels 24 Megapixels
Image Resolution 4000 x 3000 pixels 6000 x 4000 pixels
Pixel Pitch 4.33 μm 5.94 μm
Pixel Density 5.34 MP/cm2 2.83 MP/cm2
Moiré control Anti-Alias filter Anti-Alias filter
Movie Capability 720/30p Video 4K/30p Video
ISO Setting 100 - 6,400 ISO 100 - 51,200 ISO
ISO Boost no Enhancement 50 - 204,800 ISO
Image Processor Venus HD II BIONZ X
DXO Sensor Quality (score) 53 92
DXO Color Depth (bits) 21.2 24.9
DXO Dynamic Range (EV) 10.3 13.3
DXO Low Light (ISO) 493 3517
Screen Specs Panasonic G2 Sony A9
Viewfinder Type Electronic viewfinder Electronic viewfinder
Viewfinder Field of View 100% 100%
Viewfinder Magnification 0.70x 0.78x
Viewfinder Resolution 1440k dots 3686k dots
LCD Framing Live View Live View
Rear LCD Size 3.0inch 3.0inch
LCD Resolution 460k dots 1440k dots
LCD Attachment Swivel screen Tilting screen
Touch Input Touchscreen Touchscreen
Shooting Specs Panasonic G2 Sony A9
Focus System Contrast-detect AF On-Sensor Phase-detect
Manual Focusing Aidno Peaking FeatureFocus Peaking
Max Shutter Speed (mechanical) 1/4000s 1/8000s
Continuous Shooting 2.6 shutter flaps/s 20 shutter flaps/s
Electronic Shutterno E-Shutterup to 1/32000s
Image StabilizationLens stabilization onlyIn-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 no Single UHS-II
Connectivity Specs Panasonic G2 Sony A9
External Flash Hotshoe Hotshoe
Studio Flash no PC Sync PC Sync socket
USB Connector USB 2.0 USB 2.0
HDMI Port mini HDMI micro HDMI
Microphone Port no MIC socket External MIC port
Headphone Socket no Headphone port Headphone port
Wifi Support no Wifi Wifi built-in
Near-Field Communication no NFC NFC built-in
Bluetooth Support no Bluetooth Bluetooth built-in
Body Specs Panasonic G2 Sony A9
Environmental Sealingnot weather sealedWeathersealed body
Battery Type Panasonic DMW-BLB13 Sony NP-FZ100
Battery Life (CIPA)360 shots per charge650 shots per charge
In-Camera Charging no USB charging USB charging
Body Dimensions 124 x 84 x 74 mm
(4.9 x 3.3 x 2.9 in)
127 x 96 x 63 mm
(5.0 x 3.8 x 2.5 in)
Camera Weight 428 g (15.1 oz) 673 g (23.7 oz)
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