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Panasonic G3 vs Sony A7

The Panasonic Lumix DMC-G3 and the Sony Alpha A7 are two digital cameras that were revealed to the public, respectively, in May 2011 and October 2013. Both the G3 and the A7 are mirrorless interchangeable lens cameras that are based on a Four Thirds (G3) and a full frame (A7) sensor. The Panasonic has a resolution of 15.8 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 G3
versus
Sony A7
Panasonic G3   Sony A7
Mirrorless system camera Mirrorless system camera
Micro Four Thirds lenses Sony E mount lenses
15.8 MP – Four Thirds sensor 24 MP – Full Frame sensor
1080/60i Video 1080/60p Video
ISO 160-6,400 ISO 100-25,600 (50 - 51,200)
Electronic viewfinder (1440k dots) Electronic viewfinder (2400k dots)
3.0" LCD – 460k dots 3.0" LCD – 1230k dots
Swivel touchscreen Tilting screen (no touchscreen)
4 shutter flaps per second 5 shutter flaps per second
not weather sealedWeathersealed body
270 shots per battery charge340 shots per battery charge
115 x 84 x 47 mm, 336 g 127 x 94 x 48 mm, 474 g
Panasonic G3:
Check Ebay offers
Sony A7:
Check Ebay offers

Going beyond this snapshot of core features and characteristics, what are the differences between the Panasonic Lumix DMC-G3 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

The side-by-side display below illustrates the physical size and weight of the Panasonic G3 and the Sony A7. 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 measures are rounded to the nearest millimeter.

The G3 can be obtained in four different colors (black, brown, red, white), while the A7 is only available in black.

Size Panasonic G3 vs Sony A7
Compare G3 versus A7 top
Comparison G3 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 larger (24 percent) than the Panasonic G3. Moreover, the A7 is substantially heavier (41 percent) than the G3. It is noteworthy in this context that the A7 is splash and dust-proof, while the G3 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 (G3) 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 G3 gets 270 shots out of its DMW-BLD10 battery, while the A7 can take 340 images on a single charge of its NP-FW50 power pack. The power pack in the A7 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
    Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Panasonic G3 115 mm 84 mm 47 mm 336 g 270 n May 2011 599i
2.
 
Sony A7 127 mm 94 mm 48 mm 474 g 340 Y Oct 2013 1,699i
3.
 
Canon M 109 mm 66 mm 32 mm 298 g 230 n Jul 2012 599i
4.
 
Panasonic G7 125 mm 86 mm 77 mm 410 g 350 n May 2015 649i
5.
 
Panasonic G6 122 mm 85 mm 71 mm 390 g 340 n Apr 2013 599i
6.
 
Panasonic GF6 111 mm 65 mm 38 mm 323 g 340 n Apr 2013 499i
7.
 
Panasonic G5 120 mm 83 mm 71 mm 396 g 320 n Jul 2012 599i
8.
 
Panasonic GF5 108 mm 67 mm 37 mm 267 g 360 n Apr 2012 499i
9.
 
Panasonic GX1 116 mm 68 mm 39 mm 318 g 320 n Nov 2011 699i
10.
 
Panasonic G10 124 mm 84 mm 74 mm 388 g 380 n Mar 2010 499i
11.
 
Panasonic G2 124 mm 84 mm 74 mm 428 g 360 n Mar 2010 599i
12.
 
Panasonic GF2 113 mm 68 mm 33 mm 310 g 300 n Nov 2010 549i
13.
 
Samsung NX1 139 mm 102 mm 66 mm 550 g 500 Y Sep 2014 1,499i
14.
 
Sony A7C 124 mm 71 mm 60 mm 509 g 740 Y Sep 2020 1,799 i
15.
 
Sony A7 II 127 mm 96 mm 60 mm 599 g 350 Y Nov 2014 1,999i
16.
 
Sony A7S 127 mm 94 mm 48 mm 489 g 380 Y Apr 2014 2,499i
17.
 
Sony A7R 127 mm 94 mm 48 mm 465 g 340 Y Oct 2013 2,299i
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.

The price is, of course, an important factor in any camera decision. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The G3 was launched at a markedly lower price (by 65 percent) than the A7, which puts it into a different market segment. Usually, retail prices stay at first close to the launch price, but after several months, discounts become available. Later in the product cycle and, in particular, when the replacement model is about to appear, further discounting and stock clearance sales often push the camera price considerably down. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.

Sensor comparison

The size of the imaging sensor is a crucial determinant 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 G3 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 G3 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 G3 and Sony A7 sensor measures

With 24MP, the A7 offers a higher resolution than the G3 (15.8MP), but the A7 nevertheless has larger individual pixels (pixel pitch of 5.97μm versus 3.77μm for the G3) due to its larger sensor. Moreover, the A7 is a much more recent model (by 2 years and 5 months) than the G3, 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 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 G3 are 23 x 17.2 inches or 58.3 x 43.8 cm for good quality, 18.4 x 13.8 inches or 46.7 x 35 cm for very good quality, and 15.3 x 11.5 inches or 38.9 x 29.2 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.

The Panasonic Lumix DMC-G3 has a native sensitivity range from ISO 160 to ISO 6400. 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.

G3 versus A7 MP

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. 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"). Of the two cameras under consideration, the A7 offers substantially better image quality than the G3 (overall score 34 points higher). The advantage is based on 3.8 bits higher color depth, 3.6 EV in additional dynamic range, and 1.8 stops in additional low light sensitivity. 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
1.
 
Panasonic G3 Four Thirds 15.8 4592 34481080/60i21.010.666756
2.
 
Sony A7 Full Frame 24.0 6000 40001080/60p24.814.2224890
3.
 
Canon M APS-C 17.9 5184 34561080/30p22.111.282765
4.
 
Panasonic G7 Four Thirds 15.8 4592 34484K/30p22.812.490471
5.
 
Panasonic G6 Four Thirds 15.9 4608 34561080/60p21.311.563961
6.
 
Panasonic GF6 Four Thirds 15.8 4592 34481080/60i20.710.662254
7.
 
Panasonic G5 Four Thirds 15.9 4608 34561080/60p22.311.964366
8.
 
Panasonic GF5 Four Thirds 12.0 4000 30001080/60i21.411.661861
9.
 
Panasonic GX1 Four Thirds 15.8 4592 34481080/60p20.810.670355
10.
 
Panasonic G10 Four Thirds 12.0 4000 3000720/30p21.210.141152
11.
 
Panasonic G2 Four Thirds 12.0 4000 3000720/30p21.210.349353
12.
 
Panasonic GF2 Four Thirds 12.0 4000 30001080/60i21.210.350654
13.
 
Samsung NX1 APS-C 28.0 6480 43204K/30p24.213.2136383
14.
 
Sony A7C Full Frame 24.0 6000 40004K/30p25.014.7340795
15.
 
Sony A7 II Full Frame 24.0 6000 40001080/60p24.913.6244990
16.
 
Sony A7S Full Frame 12.0 4240 28321080/60p23.913.2370287
17.
 
Sony A7R Full Frame 36.2 7360 49121080/60p25.614.1274695
Note: DXO values in italics represent estimates based on sensor size and age.

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 A7 provides a faster frame rate than the G3. It can shoot movie footage at 1080/60p, while the Panasonic is limited to 1080/60i.

Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. The two cameras under review are similar with respect to both having an electronic viewfinder. However, the one in the A7 offers a substantially higher resolution than the one in the G3 (2400k vs 1440k dots). The table below summarizes some of the other core capabilities of the Panasonic G3 and Sony A7 in connection with corresponding information for a sample of similar cameras.

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Core Features
    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 G31440 n3.0 / 460 swivel Y 1/4000s 4.0/s Y n
2.
 
Sony A72400 n3.0 / 1230 tilting n 1/8000s 5.0/s n n
3.
 
Canon Mnone n3.0 / 1040 fixed Y 1/4000s 4.3/s n n
4.
 
Panasonic G72360 n3.0 / 1040 swivel Y 1/4000s 7.0/s Y n
5.
 
Panasonic G61440 n3.0 / 1036 swivel Y 1/4000s 7.0/s Y n
6.
 
Panasonic GF6none n3.0 / 1040 tilting Y 1/4000s 4.2/s Y n
7.
 
Panasonic G51440 n3.0 / 920 swivel Y 1/4000s 6.0/s Y n
8.
 
Panasonic GF5none n3.0 / 920 fixed Y 1/4000s 4.0/s Y n
9.
 
Panasonic GX1optional n3.0 / 460 fixed Y 1/4000s 4.2/s Y n
10.
 
Panasonic G10202 n3.0 / 460 fixed n 1/4000s 2.6/s Y n
11.
 
Panasonic G21440 n3.0 / 460 swivel Y 1/4000s 2.6/s Y n
12.
 
Panasonic GF2optional n3.0 / 460 fixed Y 1/4000s 2.6/s Y n
13.
 
Samsung NX12360 Y3.0 / 1036 tilting Y 1/8000s 15.0/s Y n
14.
 
Sony A7C2360 n3.0 / 922 swivel Y 1/4000s 10.0/s n Y
15.
 
Sony A7 II2400 n3.0 / 1230 tilting n 1/8000s 5.0/s n Y
16.
 
Sony A7S2400 n3.0 / 921 tilting n 1/8000s 5.0/s n n
17.
 
Sony A7R2400 n3.0 / 1230 tilting n 1/8000s 4.0/s n n
Notes: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One difference between the cameras concerns the presence of an on-board flash. The G3 has one, while the A7 does not. While the built-in flash of the G3 is not very powerful, it can at times be useful as a fill-in light.

The G3 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 G3 writes its imaging data to SDXC cards, while the A7 uses SDXC or Memory Stick PRO Duo cards. The A7 supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the G3 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-G3 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
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Panasonic G3Ystereo / mono--mini2.0---
2.
 
Sony A7Ystereo / monoYYmicro2.0YY-
3.
 
Canon MYstereo / monoY-mini2.0---
4.
 
Panasonic G7Ystereo / monoY-micro2.0Y--
5.
 
Panasonic G6Ystereo / monoY-mini2.0YY-
6.
 
Panasonic GF6-stereo / mono--mini2.0YY-
7.
 
Panasonic G5Ystereo / mono--mini2.0---
8.
 
Panasonic GF5-stereo / mono--mini2.0---
9.
 
Panasonic GX1Ystereo / mono--mini2.0---
10.
 
Panasonic G10Ymono / ---mini2.0---
11.
 
Panasonic G2Ystereo / mono--mini2.0---
12.
 
Panasonic GF2Ystereo / mono--mini2.0---
13.
 
Samsung NX1Ystereo / monoYYmicro3.0YYY
14.
 
Sony A7CYstereo / monoYYmicro3.2YYY
15.
 
Sony A7 IIYstereo / monoYYmicro2.0YY-
16.
 
Sony A7SYstereo / monoYYmicro2.0YY-
17.
 
Sony A7RYstereo / monoYYmicro2.0YY-

It is notable that the A7 offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the G3 does not provide wifi capability.

Both the G3 and the A7 have been discontinued, but can regularly be found used on eBay. The G3 was replaced by the Panasonic G5, while the A7 was followed 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.

Review summary

So what conclusions can be drawn? Is the Panasonic G3 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 DMC-G3:

  • 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.
  • More compact: Is smaller (115x84mm vs 127x94mm) and thus needs less room in the bag.
  • Less heavy: Is lighter (by 138g or 29 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 (65 percent cheaper at launch).
  • More heavily discounted: Has been available for much longer (launched in May 2011).

ilogo

Advantages of the Sony Alpha A7:

  • More detail: Has more megapixels (24 vs 15.8MP), which boosts linear resolution by 26%.
  • Better image quality: Scores substantially higher (34 points) in the DXO overall evaluation.
  • Richer colors: Generates noticeably more natural colors (3.8 bits more color depth).
  • More dynamic range: Captures a broader range of light and dark details (3.6 EV of extra DR).
  • Better low-light sensitivity: Can shoot in dim conditions (1.8 stops ISO advantage).
  • Better video: Provides higher movie framerates (1080/60p versus 1080/60i).
  • 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 (2400k vs 1440k dots).
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.71x vs 0.70x).
  • More detailed LCD: Has a higher resolution rear screen (1230k vs 460k dots).
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
  • Faster burst: Shoots at higher frequency (5 vs 4 flaps/sec) to capture the decisive moment.
  • Longer lasting: Gets more shots (340 versus 270) 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.
  • 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.
  • Faster buffer clearing: Has an SD card interface that supports the UHS-I standard.
  • More modern: Reflects 2 years and 5 months of technical progress since the G3 launch.

If the count of relative strengths (bullet points above) is taken as a measure, the A7 is the clear winner of the contest (21 : 8 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 sports photographer will view the differences between cameras in a way that diverges from the perspective of a street photog, and a person interested in family portraits has distinct needs from a landscape shooter. Hence, the decision which camera is best and worth buying is often a very personal one.

G3 08:21 A7

How about other alternatives? Do the specifications of the Panasonic G3 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 specs-based evaluation of cameras can be instructive in revealing their potential as photographic tools, it says little about, for example, the shooting experience and imaging performance of the G3 and the A7 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 why hands-on reviews by experts are important. 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
     Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Panasonic G33/5+ +..75/1004.5/55/5 May 2011 599i
2.
 
Sony A75/5+ +..80/1005/55/5 Oct 2013 1,699i
3.
 
Canon M3/5+....4/54/5 Jul 2012 599i
4.
 
Panasonic G74/5+ +..80/1005/54.5/5 May 2015 649i
5.
 
Panasonic G64/5+ +....5/54.5/5 Apr 2013 599i
6.
 
Panasonic GF6..+ +....4.5/54.5/5 Apr 2013 499i
7.
 
Panasonic G53/5+ +....4.5/54.5/5 Jul 2012 599i
8.
 
Panasonic GF53/5......4.5/54.5/5 Apr 2012 499i
9.
 
Panasonic GX13/5+..77/1004.5/54.5/5 Nov 2011 699i
10.
 
Panasonic G103/5....70/1004/54/5 Mar 2010 499i
11.
 
Panasonic G2......72/1004/54.5/5 Mar 2010 599i
12.
 
Panasonic GF23/582/100..70/1004.5/54.5/5 Nov 2010 549i
13.
 
Samsung NX15/5....87/1005/55/5 Sep 2014 1,499i
14.
 
Sony A7C3.5/5..3.5/586/1004/54/5 Sep 2020 1,799 i
15.
 
Sony A7 II5/5+4/582/1004.5/55/5 Nov 2014 1,999i
16.
 
Sony A7S4/5....86/1004.5/55/5 Apr 2014 2,499i
17.
 
Sony A7R5/5+ +..82/1004.5/55/5 Oct 2013 2,299i
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

Care should be taken when interpreting the review scores above, though. The assessments were made in relation to similar cameras of the same technological generation. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

Panasonic G3:
Check Ebay offers
Sony A7:
Check Ebay offers

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. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.

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    Specifications: Panasonic G3 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 G3 Sony A7
    Camera Type Mirrorless system camera Mirrorless system camera
    Camera Lens Micro Four Thirds lenses Sony E mount lenses
    Launch Date May 2011 October 2013
    Launch Price USD 599 USD 1,699
    Sensor Specs Panasonic G3 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 15.8 Megapixels 24 Megapixels
    Image Resolution 4592 x 3448 pixels 6000 x 4000 pixels
    Pixel Pitch 3.77 μm 5.97 μm
    Pixel Density 7.04 MP/cm2 2.80 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability 1080/60i Video 1080/60p Video
    ISO Setting 160 - 6,400 ISO 100 - 25,600 ISO
    ISO Boost no Enhancement 50 - 51,200 ISO
    Image Processor Venus FHD BIONZ X
    DXO Sensor Quality (score) 56 90
    DXO Color Depth (bits) 21.0 24.8
    DXO Dynamic Range (EV) 10.6 14.2
    DXO Low Light (ISO) 667 2248
    Screen Specs Panasonic G3 Sony A7
    Viewfinder Type Electronic viewfinder Electronic viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.70x 0.71x
    Viewfinder Resolution 1440k dots 2400k dots
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 460k dots 1230k dots
    LCD Attachment Swivel screen Tilting screen
    Touch Input Touchscreen no Touchscreen
    Shooting Specs Panasonic G3 Sony A7
    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 4 shutter flaps/s 5 shutter flaps/s
    Fill Flash Built-in Flash no On-Board Flash
    Storage Medium SDXC cards MS or SDXC cards
    Second Storage Option Single card slot Single card slot
    UHS card support no UHS-I
    Connectivity Specs Panasonic G3 Sony A7
    External Flash Hotshoe Hotshoe
    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
    Body Specs Panasonic G3 Sony A7
    Environmental Sealingnot weather sealedWeathersealed body
    Battery Type DMW-BLD10 NP-FW50
    Battery Life (CIPA)270 shots per charge340 shots per charge
    In-Camera Charging no USB charging USB charging
    Body Dimensions 115 x 84 x 47 mm
    (4.5 x 3.3 x 1.9 in)
    127 x 94 x 48 mm
    (5.0 x 3.7 x 1.9 in)
    Camera Weight 336 g (11.9 oz) 474 g (16.7 oz)
    Panasonic G3:
    Check Ebay offers
    Sony A7:
    Check Ebay offers

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