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Panasonic G9 vs Sony A7

The Panasonic Lumix DC-G9 and the Sony Alpha A7 are two enthusiast cameras that were revealed to the public, respectively, in November 2017 and October 2013. Both the G9 and the A7 are mirrorless interchangeable lens cameras that are based on a Four Thirds (G9) and a full frame (A7) sensor. The Panasonic has a resolution of 20.2 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 G9 versus Sony A7
Panasonic G9 Sony A7
Mirrorless system camera Mirrorless system camera
Micro Four Thirds lenses Sony E mount lenses
20.2 MP, Four Thirds Sensor 24 MP, Full Frame Sensor
4K/60p Video 1080/60p Video
ISO 200-25,600 ISO 100-25,600 (50 - 51,200)
Electronic viewfinder (3680k dots) Electronic viewfinder (2400k dots)
3.0 LCD, 1040k dots 3.0 LCD, 1230k dots
Swivel touchscreen Tilting screen (not touch-sensitive)
20 shutter flaps per second 5 shutter flaps per second
In-body stabilizationLens stabilization only
Weathersealed bodyWeathersealed body
400 shots per battery charge340 shots per battery charge
137 x 97 x 92 mm, 658 g 127 x 94 x 48 mm, 474 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Panasonic Lumix DC-G9 and the Sony Alpha A7? 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.

Body comparison

An illustration of the physical size and weight of the Panasonic G9 and the Sony A7 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.

Size Panasonic G9 vs Sony A7
Compare G9 versus A7 top
Comparison G9 or A7 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A7 is notably smaller (10 percent) than the Panasonic G9. Moreover, the A7 is markedly lighter (28 percent) than the G9. In this context, it is worth noting that both cameras are splash and dust-proof and can, hence, be used in inclement weather conditions or harsh environments.

The above size and weight comparisons are to some extent incomplete since they do not consider the interchangeable lenses that both of these cameras require. A larger imaging sensor will tend to go along with bigger and heavier lenses, although exceptions exist. You can compare the optics available for the two cameras in the Micro Four Thirds Lens Catalog (G9) and the Sony FE Lens Catalog (A7). 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 G9 gets 400 shots out of its DMW-BLF19 battery, while the A7 can take 340 images on a single charge of its NP-FW50 power pack. The battery packs of both cameras can be charged via USB, 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, just click on the right or left arrow next to the camera that you would like to inspect. Alternatively, you can also use the CAM-parator to select your camera combination among a larger number of options.

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Body Specifications
  Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life 1
Weather
Sealing
Camera
Launch 2
Launch
Price (USD)
Street
Price
 
Panasonic G9 5.4 in 3.8 in 3.6 in 23.2 oz 400 Y Nov 2017 1,699 i
 
Sony A7 5.0 in 3.7 in 1.9 in 16.7 oz 340 Y Oct 2013 1,699i
 
Fujifilm X-H1 5.5 in 3.8 in 3.4 in 23.7 oz 310 Y Feb 2018 1,899 i
 
Olympus E-M1 III 5.3 in 3.6 in 2.7 in 20.5 oz 420 Y Feb 2020 1,799 i
 
Olympus E-M1 II 5.3 in 3.6 in 2.6 in 20.2 oz 440 Y Sep 2016 1,999 i
 
Panasonic GH5s 5.5 in 3.9 in 3.4 in 23.3 oz 440 Y Jan 2018 2,499 i
 
Panasonic GX9 4.9 in 2.8 in 1.9 in 14.4 oz 260 n Feb 2018 849 i
 
Panasonic GH5 5.5 in 3.9 in 3.4 in 25.6 oz 410 Y Jan 2017 1,999 i
 
Panasonic G85 5.0 in 3.5 in 2.9 in 17.8 oz 330 Y Sep 2016 899i
 
Panasonic GX8 5.2 in 3.1 in 2.5 in 17.2 oz 330 Y Jul 2015 1,199i
 
Panasonic GH4 5.2 in 3.7 in 3.3 in 19.8 oz 500 Y Feb 2014 1,499i
 
Sony A7 III 5.0 in 3.8 in 2.9 in 22.9 oz 610 Y Feb 2018 1,999 i
 
Sony A7 II 5.0 in 3.8 in 2.4 in 21.1 oz 350 Y Nov 2014 1,999i
 
Sony A7S 5.0 in 3.7 in 1.9 in 17.2 oz 380 Y Apr 2014 2,499i
 
Sony A7R 5.0 in 3.7 in 1.9 in 16.4 oz 340 Y Oct 2013 2,299i
 
Sony RX1R 4.4 in 2.6 in 2.8 in 17.0 oz 270 n Jun 2013 2,799i
 
Sony RX1 4.4 in 2.6 in 2.8 in 17.0 oz 270 n Sep 2012 2,799i
Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
(1) Number of images that can be taken on a full battery charge according to the CIPA-standard; (2) Official announcement.

Any camera decision will naturally be influenced heavily by the price. The retail prices at the time of the camera’s release place the model in the market relative to other models in the producer’s line-up and the competition. The two cameras under review were launched at the same price and fall into the same market segment. Normally, street prices remain initially close to the MSRP, but after a couple of months, the first discounts appear. 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.

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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 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. Moreover, a large sensor camera will give the photographer more control over depth-of-field in the image and, thus, the ability to better 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 Panasonic G9 features a Four Thirds sensor and the Sony A7 a full frame sensor. The sensor area in the A7 is 280 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 G9 has a native 4:3 aspect ratio, while the one in the A7 offers a 3:2 aspect.

In terms of underlying technology, both cameras are build around CMOS sensors.

Panasonic G9 and Sony A7 sensor measures

With 24MP, the A7 offers a higher resolution than the G9 (20.2MP), but the A7 nevertheless has larger individual pixels (pixel pitch of 5.97μm versus 3.34μm for the G9) due to its larger sensor. However, the G9 is a much more recent model (by 4 years) than the A7, and its sensor will 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 G9 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Sony A7 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A7 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 G9 are 25.9 x 19.4 inches or 65.8 x 49.4 cm for good quality, 20.7 x 15.6 inches or 52.7 x 39.5 cm for very good quality, and 17.3 x 13 inches or 43.9 x 32.9 cm for excellent quality prints.

The A7 has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

Unlike the A7, the G9 has the capacity to capture high quality composite images (80.6MP) by combining multiple shots after shifting its sensor by miniscule distances. This multi-shot, pixel-shift mode is most suitable for photography of stationary objects (landscapes, studio scenes).

The Panasonic Lumix DC-G9 has a native sensitivity range from ISO 200 to ISO 25600, which can be extended to ISO 100-25600. The corresponding ISO settings for the Sony Alpha A7 are ISO 100 to ISO 25600, with the possibility to increase the ISO range to 50-51200.

G9 versus A7 MP

For many cameras, data on sensor performance has been reported by DXO Mark. This service determines an overall sensor rating, as well as sub-scores for low-light sensitivity ("DXO Sports"), dynamic range ("DXO Landscape"), and color depth ("DXO Portrait"). The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.

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Sensor Characteristics
  Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
 
Panasonic G9 Four Thirds 20.2 5184 38884K/60p........
 
Sony A7 Full Frame 24.0 6000 40001080/60p24.814.2224890
 
Fujifilm X-H1 APS-C 24.0 6000 40004K/30p........
 
Olympus E-M1 III Four Thirds 20.2 5184 38884K/30p........
 
Olympus E-M1 II Four Thirds 20.2 5184 38884K/30p23.712.8131280
 
Panasonic GH5s Four Thirds 9.9 3680 27004K/60p........
 
Panasonic GX9 Four Thirds 20.2 5184 38884K/30p........
 
Panasonic GH5 Four Thirds 20.2 5184 38884K/60p23.913.080777
 
Panasonic G85 Four Thirds 15.8 4592 34484K/30p22.812.565671
 
Panasonic GX8 Four Thirds 20.2 5184 38884K/30p23.512.680675
 
Panasonic GH4 Four Thirds 15.9 4608 34564K/30p23.212.879174
 
Sony A7 III Full Frame 24.0 6000 40004K/30p25.014.7373096
 
Sony A7 II Full Frame 24.0 6000 40001080/60p24.913.6244990
 
Sony A7S Full Frame 12.0 4240 28321080/60p23.913.2370287
 
Sony A7R Full Frame 36.2 7360 49121080/60p25.614.1274695
 
Sony RX1R Full Frame 24.0 6000 40001080/60p25.013.6253791
 
Sony RX1 Full Frame 24.0 6000 40001080/60p25.114.3253493

Many modern cameras are not only capable of taking still images, but can also record movies. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, but the G9 provides a higher video resolution than the A7. It can shoot video footage at 4K/60p, while the Sony is limited to 1080/60p.

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Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. The two cameras under consideration are similar with respect to both having an electronic viewfinder. However, the one in the G9 offers a substantially higher resolution than the one in the A7 (3680k vs 2400k dots). The following table reports on some other key feature differences and similarities of the Panasonic G9, the Sony A7, and comparable cameras.

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Core Features
  Camera
Model
Viewfinder
(Type or
000 dots)
Control
Panel
(yes/no)
LCD
Size
(inch)
LCD
Resolution
(000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Mech
Shutter
Speed
Shutter
Flaps
(1/sec)
Built-in
Flash
(yes/no)
Built-in
Image
Stab
 
Panasonic G93680 Y 3.0 1040 swivel Y 1/8000s 20.0 n Y
 
Sony A72400 n 3.0 1230 tilting n 1/8000s 5.0 n n
 
Fujifilm X-H13690 Y 3.0 1040 full-flex Y 1/8000s 14.0 n Y
 
Olympus E-M1 III2360 n 3.0 1037 swivel Y 1/8000s 18.0 n Y
 
Olympus E-M1 II2360 n 3.0 1037 swivel Y 1/8000s 18.0 n Y
 
Panasonic GH5s3680 n 3.2 1620 swivel Y 1/8000s 12.0 n n
 
Panasonic GX92760 n 3.0 1240 tilting Y 1/4000s 9.0 Y Y
 
Panasonic GH53680 n 3.2 1620 swivel Y 1/8000s 12.0 n Y
 
Panasonic G852360 n 3.0 1040 swivel Y 1/4000s 9.0 Y Y
 
Panasonic GX82360 n 3.0 1040 swivel Y 1/8000s 10.0 n Y
 
Panasonic GH42359 n 3.0 1036 swivel Y 1/8000s 12.0 Y n
 
Sony A7 III2359 n 3.0 922 tilting Y 1/8000s 10.0 n Y
 
Sony A7 II2400 n 3.0 1230 tilting n 1/8000s 5.0 n Y
 
Sony A7S2400 n 3.0 921 tilting n 1/8000s 5.0 n n
 
Sony A7R2400 n 3.0 1230 tilting n 1/8000s 4.0 n n
 
Sony RX1Roptional n 3.0 1229 fixed n 1/4000s 5.0 Y n
 
Sony RX1optional n 3.0 1229 fixed n 1/4000s 5.0 Y n

One feature that is present on the G9, but is missing on the A7 is a top-level LCD. While being, of course, smaller than the rear screen, the control panel conveys some of the essential shooting information and can be convenient for quick and easy settings verification.

The G9 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 A7 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 G9 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 Panasonic G9 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 G9 writes its imaging data to SDXC cards, while the A7 uses SDXC or Memory Stick PRO Duo cards. The G9 features dual card slots, which can be very useful in case a memory card fails. In contrast, the A7 only has one slot. The G9 supports UHS-II cards (on both slots), while the A7 can use UHS-I cards.

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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 Panasonic Lumix DC-G9 and Sony Alpha A7 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
  Camera
Model
Hotshoe
Port
Internal
Microphone
Internal
Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
 
Panasonic G9YstereomonoYYfull3.0Y-Y
 
Sony A7YstereomonoYYmicro2.0YY-
 
Fujifilm X-H1YstereomonoY-micro3.0Y--
 
Olympus E-M1 IIIYstereomonoYYmicro3.1Y-Y
 
Olympus E-M1 IIYstereomonoYYmicro3.0Y--
 
Panasonic GH5sYstereomonoYYfull3.1Y-Y
 
Panasonic GX9Ystereomono--micro2.0Y-Y
 
Panasonic GH5YstereomonoYYfull3.1Y-Y
 
Panasonic G85YstereomonoY-micro2.0Y--
 
Panasonic GX8YstereomonoY-micro2.0YY-
 
Panasonic GH4YstereomonoYYmicro2.0YY-
 
Sony A7 IIIYstereomonoYYmicro3.1YYY
 
Sony A7 IIYstereomonoYYmicro2.0YY-
 
Sony A7SYstereomonoYYmicro2.0YY-
 
Sony A7RYstereomonoYYmicro2.0YY-
 
Sony RX1RYstereomonoY-mini2.0---
 
Sony RX1YstereomonoY-mini2.0---

Studio photographers will appreciate that the Panasonic G9 (unlike the A7) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

The G9 is a recent model that features in the current product line-up of Panasonic. In contrast, the A7 has been discontinued (but can be found pre-owned on eBay). As a replacement in the same line of cameras, the A7 was succeeded by the Sony A7 II. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Panasonic and Sony websites.

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Review summary

So what is the bottom line? Is the Panasonic G9 better than the Sony A7 or vice versa? A synthesis of the relative strong points of each of the models is listed below.

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Reasons to prefer the Panasonic Lumix DC-G9:

  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • High quality composites: Can combine several shots after pixel-shifting its sensor.
  • Better video: Provides higher definition movie capture (4K/60p vs 1080/60p).
  • More detailed viewfinder: Has higher resolution electronic viewfinder (3680k vs 2400k dots).
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.83x vs 0.71x).
  • Easier setting verification: Features an LCD display on top to control shooting parameters.
  • More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
  • Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
  • More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
  • Faster burst: Shoots at higher frequency (20 vs 5 flaps/sec) to capture the decisive moment.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • Longer lasting: Can take more shots (400 versus 340) on a single battery charge.
  • Sharper images: Has hand-shake reducing image stabilization built-in.
  • Faster data transfer: Supports a more advanced USB protocol (3.0 vs 2.0).
  • More solid recording: Has a full-sized HDMI port for a sturdy connection to an external recorder.
  • 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 a more advanced SD data transfer standard (UHS-II vs UHS-I).
  • More modern: Reflects 4 years of technical progress since the A7 launch.

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Arguments in favor of the Sony Alpha A7:

  • More detail: Has more megapixels (24 vs 20.2MP), which boosts linear resolution by 11%.
  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
  • More detailed LCD: Has a higher resolution rear screen (1230k vs 1040k dots).
  • Less heavy: Has a lower weight (by 184g or 28 percent) and is thus easier to take along.
  • Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
  • More heavily discounted: Has been around for much longer (launched in October 2013).

If the number of relative strengths (bullet points above) is taken as a guide, the G9 is the clear winner of the match-up (21 : 7 points). However, the pertinence of the various camera strengths will differ across photographers, so that you might want to weigh individual camera traits according to their importance for your own imaging needs before making a camera decision. A professional wedding photographer will view the differences between cameras in a way that diverges from the perspective of a travel photog, and a person interested in cityscapes has distinct needs from a macro shooter. Hence, the decision which camera is best and worth buying is often a very personal one.

G9 21:07 A7

How about other alternatives? Do the specifications of the Panasonic G9 and the Sony A7 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 remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the G9 or the A7. 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 why expert reviews are important. The following table reports the overall ratings of the cameras as published by some of the major camera review sites (cameralabs, dpreview, ephotozine, imaging-resource, and photographyblog). 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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Review Scores
  Camera
Model
camera
  labs  
dp
review  
ephoto
  zine  
imaging
resource
photography
  blog  
Camera
Launch
Launch
Price (USD)
Street
Price
 
Panasonic G9+ +85/1005/55/55/5 Nov 2017 1,699 i
 
Sony A7+ +80/1005/54.5/55/5 Oct 2013 1,699i
 
Fujifilm X-H1+86/1004.5/5..4.5/5 Feb 2018 1,899 i
 
Olympus E-M1 III..83/1004.5/5..4/5 Feb 2020 1,799 i
 
Olympus E-M1 II+ +85/1004.5/55/54.5/5 Sep 2016 1,999 i
 
Panasonic GH5s..84/1004.5/55/54.5/5 Jan 2018 2,499 i
 
Panasonic GX9+84/1004.5/54.5/54.5/5 Feb 2018 849 i
 
Panasonic GH5+ +85/1004.5/55/55/5 Jan 2017 1,999 i
 
Panasonic G85+ +84/1005/54.5/54.5/5 Sep 2016 899i
 
Panasonic GX8+82/1004.5/55/54.5/5 Jul 2015 1,199i
 
Panasonic GH4+ +85/1005/55/55/5 Feb 2014 1,499i
 
Sony A7 III+ +89/1005/55/55/5 Feb 2018 1,999 i
 
Sony A7 II+82/1004.5/55/55/5 Nov 2014 1,999i
 
Sony A7S..86/1004.5/54.5/55/5 Apr 2014 2,499i
 
Sony A7R+ +82/1004.5/55/55/5 Oct 2013 2,299i
 
Sony RX1R....4/5o4.5/5 Jun 2013 2,799i
 
Sony RX1..79/1004/54.5/54.5/5 Sep 2012 2,799i
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The review scores listed above should be treated with care, though. The ratings are only valid when referring to cameras in the same category and of the same age. Hence, a score should always be seen in the context of the camera's market launch date and its price, and comparisons of ratings among very different cameras or across long time periods have little meaning. Also, please note that some of the review sites have changed their methodology and reporting over time.

Panasonic G9:
Check Amazon price
Sony A7:
Check Ebay offers

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 use the search menu 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: Panasonic G9 vs Sony A7

    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 G9 Sony A7
    Camera Type Mirrorless system camera Mirrorless system camera
    Camera Lens Micro Four Thirds lenses Sony E mount lenses
    Launch Date November 2017 October 2013
    Launch Price USD 1,699 USD 1,699
    Sensor Specs Panasonic G9 Sony A7
    Sensor Technology CMOS CMOS
    Sensor Format Four Thirds Sensor Full Frame Sensor
    Sensor Size 17.3 x 13.0 mm 35.8 x 23.9 mm
    Sensor Area 224.9 mm2 855.62 mm2
    Sensor Diagonal 21.6 mm 43 mm
    Crop Factor 2.0x 1.0x
    Sensor Resolution 20.2 Megapixels 24 Megapixels
    Image Resolution 5184 x 3888 pixels 6000 x 4000 pixels
    Pixel Pitch 3.34 μm 5.97 μm
    Pixel Density 8.96 MP/cm2 2.80 MP/cm2
    Moiré control no AA filter Anti-Alias filter
    Movie Capability 4K/60p Video 1080/60p Video
    ISO Setting 200 - 25,600 ISO 100 - 25,600 ISO
    ISO Boost 100 - 25,600 ISO 50 - 51,200 ISO
    Image Processor Venus 10 BIONZ X
    DXO Sensor Quality (score) .. 90
    DXO Color Depth (bits) .. 24.8
    DXO Dynamic Range (EV) .. 14.2
    DXO Low Light (ISO) .. 2248
    Screen Specs Panasonic G9 Sony A7
    Viewfinder Type Electronic viewfinder Electronic viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.83x 0.71x
    Viewfinder Resolution 3680k dots 2400k dots
    Top-Level Screen Control Panel no Top Display
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 1040k dots 1230k dots
    LCD Attachment Swivel screen Tilting screen
    Touch Input Touchscreen no Touchscreen
    Shooting Specs Panasonic G9 Sony A7
    Focus System Contrast-detect AF On-Sensor Phase-detect
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/8000s 1/8000s
    Continuous Shooting 20 shutter flaps/s 5 shutter flaps/s
    Electronic Shutterup to 1/32000sno E-Shutter
    Time-Lapse PhotographyIntervalometer built-inno Intervalometer
    Image StabilizationIn-body stabilizationLens stabilization only
    Fill Flash no On-Board Flash no On-Board Flash
    Storage Medium SDXC cards MS or SDXC cards
    Second Storage Option Dual card slots Single card slot
    UHS card support Dual UHS-II UHS-I
    Connectivity Specs Panasonic G9 Sony A7
    External Flash Hotshoe Hotshoe
    Studio Flash PC Sync socket no PC Sync
    USB Connector USB 3.0 USB 2.0
    HDMI Port full HDMI micro HDMI
    Microphone Port External MIC port External MIC port
    Headphone Socket Headphone port Headphone port
    Wifi Support Wifi built-in Wifi built-in
    Near-Field Communication no NFC NFC built-in
    Bluetooth Support Bluetooth built-in no Bluetooth
    Body Specs Panasonic G9 Sony A7
    Environmental SealingWeathersealed bodyWeathersealed body
    Battery Type DMW-BLF19 NP-FW50
    Battery Life (CIPA)400 shots per charge340 shots per charge
    In-Camera Charging USB charging USB charging
    Body Dimensions 137 x 97 x 92 mm
    (5.4 x 3.8 x 3.6 in)
    127 x 94 x 48 mm
    (5.0 x 3.7 x 1.9 in)
    Camera Weight 658 g (23.2 oz) 474 g (16.7 oz)

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