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Panasonic G3 vs G7

The Panasonic Lumix DMC-G3 and the Panasonic Lumix DMC-G7 are two digital cameras that were announced, respectively, in May 2011 and May 2015. Both the G3 and the G7 are mirrorless interchangeable lens cameras that are equipped with a Four Thirds sensor. Both cameras offer a resolution of 15.8 megapixels.

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

Headline Specifications
Panasonic G3   Panasonic G7
Panasonic G3 Panasonic G7
Mirrorless system camera Mirrorless system camera
Micro Four Thirds lenses Micro Four Thirds lenses
15.8 MP, Four Thirds Sensor 15.8 MP, Four Thirds Sensor
1080/60i Video 4K/30p Video
ISO 160-6400 ISO 160-25600
Electronic viewfinder (1440k dots) Electronic viewfinder (2360k dots)
3.0" LCD, 460k dots 3.0" LCD, 1040k dots
Swivel touchscreen Swivel touchscreen
4 shutter flaps per second 7 shutter flaps per second
270 shots per battery charge350 shots per battery charge
115 x 84 x 47 mm, 336 g 125 x 86 x 77 mm, 410 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Panasonic Lumix DMC-G3 and the Panasonic Lumix DMC-G7? 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: Panasonic G3 vs G7

The physical size and weight of the Panasonic G3 and the Panasonic G7 are illustrated in the side-by-side display below. 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 G3 can be obtained in four different colors (black, brown, red, white), while the G7 is available in two color-versions (black, silver).

Size Panasonic G3 vs Panasonic G7
Compare G3 versus G7 top
Comparison G3 or G7 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Panasonic G7 is notably larger (11 percent) than the Panasonic G3. Moreover, the G7 is markedly heavier (22 percent) than the G3. In this context, it is worth noting that neither the G3 nor the G7 are weather-sealed.

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. In this particular case, both cameras feature the same lens mount, so that they can use the same lenses. You can compare the optics available in the Micro Four Thirds Lens Catalog. 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 G7 can take 350 images on a single charge of its DMW-BLC12 power pack.

The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. If you would like to visualize and compare a different camera combination, just use the right or left arrows in the table to switch to the respective camera. Alternatively, you can also navigate to the CAM-parator app and make your selection from the full list of cameras there.

Camera Body Specifications
  Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
(CIPA)
Weather
Sealing
(yes/no)
Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Camera
Model
 
Panasonic G3» 4.5 in 3.3 in 1.9 in 11.9 oz 270 n May 2011 599- i Panasonic G3
 
Panasonic G7« 4.9 in 3.4 in 3.0 in 14.5 oz 350 n May 2015 649- i Panasonic G7
 
Panasonic GM5« » 3.9 in 2.4 in 1.4 in 7.4 oz 220 n Sep 2014 749- i Panasonic GM5
 
Panasonic G6« » 4.8 in 3.3 in 2.8 in 13.8 oz 340 n Apr 2013 599- i Panasonic G6
 
Panasonic GF6« » 4.4 in 2.6 in 1.5 in 11.4 oz 340 n Apr 2013 499- i Panasonic GF6
 
Panasonic GM1« » 3.9 in 2.2 in 1.2 in 7.2 oz 230 n Oct 2013 749- i Panasonic GM1
 
Panasonic G5« » 4.7 in 3.3 in 2.8 in 14.0 oz 320 n Jul 2012 599- i Panasonic G5
 
Panasonic GF3« » 4.3 in 2.6 in 1.3 in 9.3 oz 300 n Jun 2011 549- i Panasonic GF3
 
Panasonic GX1« » 4.6 in 2.7 in 1.5 in 11.2 oz 320 n Nov 2011 699- i Panasonic GX1
 
Panasonic G10« » 4.9 in 3.3 in 2.9 in 13.7 oz 380 n Mar 2010 499- i Panasonic G10
 
Panasonic G2« » 4.9 in 3.3 in 2.9 in 15.1 oz 360 n Mar 2010 599- i Panasonic G2
 
Panasonic GF2« » 4.4 in 2.7 in 1.3 in 10.9 oz 300 n Nov 2010 549- i Panasonic GF2
 
Panasonic GH2« » 4.9 in 3.5 in 3.0 in 15.6 oz 330 n Sep 2010 899- i Panasonic GH2
 
Panasonic G1« » 4.9 in 3.3 in 1.8 in 12.7 oz 410 n Sep 2008 599- i Panasonic G1
Note: Measurements and pricing do not include easily detachable parts, such as interchangeable lenses or optional viewfinders.

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 G3 was somewhat cheaper (by 8 percent) than the G7 at launch, but both cameras fall into the same price category. 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. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.

 

Sensor comparison: Panasonic G3 vs G7

The imaging sensor is at the core of digital cameras and its size is one of the main determining factors of image quality. All other things equal, a large sensor will have larger individual pixel-units that offer better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixels 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 more expensive and lead to bigger and heavier cameras and lenses.

Both cameras under consideration feature a Four Thirds sensor and have a format factor (sometimes also referred to as "crop factor") of 2.0. Within the spectrum of camera sensors, this places the review cameras among the medium-sized sensor cameras that aim to strike a balance between image quality and portability. Both cameras feature a native aspect ratio (sensor width to sensor height) of 4:3.

Panasonic G3 and Panasonic G7 sensor measures

The two cameras under review do not only share the same sensor size, but also offer an identical resolution of 15.8 megapixels. This similarity in sensor specs implies that both the G3 and the G7 have the same pixel density, as well as the same pixel size. It should, however, be noted that the G7 is much more recent (by 4 years) than the G3, and its sensor will have benefitted from technological advances during this time.

The Panasonic Lumix DMC-G3 has a native sensitivity range from ISO 160 to ISO 6400. The corresponding ISO settings for the Panasonic Lumix DMC-G7 are ISO 160 to ISO 25600 (no boost).

G3 versus G7 MP

Consistent information on actual sensor performance is available from DXO Mark for many cameras. 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 adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.

Sensor Characteristics
  Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
Camera
Model
 
Panasonic G3» Four Thirds 15.8 4592 34481080/60i21.010.666756Panasonic G3
 
Panasonic G7« Four Thirds 15.8 4592 34484K/30p----Panasonic G7
 
Panasonic GM5« » Four Thirds 15.8 4592 34481080/60p22.111.772166Panasonic GM5
 
Panasonic G6« » Four Thirds 15.9 4608 34561080/60p21.311.563961Panasonic G6
 
Panasonic GF6« » Four Thirds 15.8 4592 34481080/60i20.710.662254Panasonic GF6
 
Panasonic GM1« » Four Thirds 15.8 4592 34481080/60i22.311.766066Panasonic GM1
 
Panasonic G5« » Four Thirds 15.9 4608 34561080/60p----Panasonic G5
 
Panasonic GF3« » Four Thirds 12.0 4000 30001080/60i20.610.045849Panasonic GF3
 
Panasonic GX1« » Four Thirds 15.8 4592 34481080/60p20.810.670355Panasonic GX1
 
Panasonic G10« » Four Thirds 12.0 4000 3000720/30p21.210.141152Panasonic G10
 
Panasonic G2« » Four Thirds 12.0 4000 3000720/30p21.210.349353Panasonic G2
 
Panasonic GF2« » Four Thirds 12.0 4000 30001080/60i21.210.350654Panasonic GF2
 
Panasonic GH2« » Four Thirds 15.9 4608 34561080/60i21.211.365560Panasonic GH2
 
Panasonic G1« » Four Thirds 12.0 4000 3000-21.110.346353Panasonic G1

Many modern cameras are not only capable of taking still images, but also of capturing video footage. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, but the G7 provides a better video resolution than the G3. It can shoot movie footage at 4K/30p, while the G3 is limited to 1080/60i.

 

Feature comparison: Panasonic G3 vs G7

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 G7 offers a substantially higher resolution than the one in the G3 (2360k vs 1440k dots). The adjacent table lists some of the other core features of the Panasonic G3 and Panasonic G7 along with similar information for a selection of comparators.

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
Camera
Model
 
Panasonic G3»1440 n 3.0 460 swivel Y 1/4000s 4.0 Y n Panasonic G3
 
Panasonic G7«2360 n 3.0 1040 swivel Y 1/4000s 7.0 Y n Panasonic G7
 
Panasonic GM5« »1166 n 3.0 921 fixed Y 1/500s 5.8 n n Panasonic GM5
 
Panasonic G6« »1440 n 3.0 1036 swivel Y 1/4000s 7.0 Y n Panasonic G6
 
Panasonic GF6« »- n 3.0 1040 tilting Y 1/4000s 4.2 Y n Panasonic GF6
 
Panasonic GM1« »- n 3.0 1036 fixed Y 1/500s 5.0 Y n Panasonic GM1
 
Panasonic G5« »1440 n 3.0 920 swivel Y 1/4000s 6.0 Y n Panasonic G5
 
Panasonic GF3« »- n 3.0 460 fixed Y 1/4000s 3.2 Y n Panasonic GF3
 
Panasonic GX1« »- n 3.0 460 fixed Y 1/4000s 4.2 Y n Panasonic GX1
 
Panasonic G10« »202 n 3.0 460 fixed n 1/4000s 2.6 Y n Panasonic G10
 
Panasonic G2« »1440 n 3.0 460 swivel Y 1/4000s 2.6 Y n Panasonic G2
 
Panasonic GF2« »- n 3.0 460 fixed Y 1/4000s 2.6 Y n Panasonic GF2
 
Panasonic GH2« »1534 n 3.0 460 swivel n 1/4000s 3.0 Y n Panasonic GH2
 
Panasonic G1« »1440 n 3.0 460 swivel n 1/4000s 3.0 Y n Panasonic G1
Both cameras have an articulated rear screen that can be turned to be front-facing. This feature will be particularly appreciated by vloggers and photographers who are interested in taking selfies.

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 G7 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 G7 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.

Concerning the storage of imaging data, both the G3 and the G7 write their files to SDXC cards. The G7 supports UHS-II cards (Ultra High Speed data transfer of up to 312 MB/s), while the G3 cannot take advantage of Ultra High Speed SD cards.

 

Connectivity comparison: Panasonic G3 vs G7

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 Panasonic Lumix DMC-G7 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

Input-Output Connections
  Camera
Model
Hotshoe
Port
Internal
Microphone
Internal
Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Type
WiFi
Support
NFC
Support
Bluetooth
Support
Camera
Model
 
Panasonic G3»Ystereomono--mini2.0---Panasonic G3
 
Panasonic G7«YstereomonoY-micro2.0Y--Panasonic G7
 
Panasonic GM5« »Ystereomono--micro2.0Y--Panasonic GM5
 
Panasonic G6« »YstereomonoY-mini2.0YY-Panasonic G6
 
Panasonic GF6« »-stereomono--mini2.0YY-Panasonic GF6
 
Panasonic GM1« »-stereomono--micro2.0Y--Panasonic GM1
 
Panasonic G5« »Ystereomono--mini2.0---Panasonic G5
 
Panasonic GF3« »-stereomono--mini2.0---Panasonic GF3
 
Panasonic GX1« »Ystereomono--mini2.0---Panasonic GX1
 
Panasonic G10« »Ymono---mini2.0---Panasonic G10
 
Panasonic G2« »Ystereomono--mini2.0---Panasonic G2
 
Panasonic GF2« »Ystereomono--mini2.0---Panasonic GF2
 
Panasonic GH2« »YstereomonoY-mini2.0---Panasonic GH2
 
Panasonic G1« »Y----mini2.0---Panasonic G1

It is notable that the G7 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 offer wifi capability.

Both the G3 and the G7 have been discontinued, but can regularly be found used on eBay. The G3 was replaced by the Panasonic G5, while the G7 was followed by the Panasonic G85. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Panasonic website.


Review summary: Panasonic G3 vs G7

So what conclusions can be drawn? Is the Panasonic G3 better than the Panasonic G7 or vice versa? The listing below highlights the relative strengths of the two models.


Advantages of the Panasonic Lumix DMC-G3:

  • Less heavy: Is lighter (by 74g or 18 percent) and hence easier to carry around.
  • More heavily discounted: Has been available for much longer (launched in May 2011).


Arguments in favor of the Panasonic Lumix DMC-G7:

  • Better video: Provides higher definition movie capture (4K/30p vs 1080/60i).
  • Better sound: Can connect to an external microphone for higher quality sound recording.
  • More detailed viewfinder: Has higher resolution electronic viewfinder (2360k vs 1440k dots).
  • More detailed LCD: Has a higher resolution rear screen (1040k vs 460k dots).
  • Faster burst: Shoots at higher frequency (7 vs 4 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: Gets more shots (350 versus 270) out of a single battery charge.
  • Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
  • Faster buffer clearing: Has an SD card interface that supports the UHS-II standard.
  • More modern: Reflects 4 years of technical progress since the G3 launch.

If the number of relative strengths (bullet points above) is taken as a guide, the G7 is the clear winner of the contest (11 : 2 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.

G3 02:11 G7

How about other alternatives? Do the specifications of the Panasonic G3 and the Panasonic G7 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 incomplete and does no justice, for example, to the way the G3 or the G7 perform in practice. 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: Panasonic G3 vs G7

This is why expert reviews are important. The table below provides a synthesis of the camera assessments of some of the best known photo-gear 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.

Review Scores
  Camera
Model
cameralabs dpreview ephotozine imaging-resource photographyblog Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Camera
Model
 
Panasonic G3»+ +75/1004.5/54.5/55/5 May 2011 599- i Panasonic G3
 
Panasonic G7«+ +80/1005/54.5/54.5/5 May 2015 649- i Panasonic G7
 
Panasonic GM5« »+77/1005/55/54.5/5 Sep 2014 749- i Panasonic GM5
 
Panasonic G6« »+ +-5/5-4.5/5 Apr 2013 599- i Panasonic G6
 
Panasonic GF6« »+ +-4.5/5-4.5/5 Apr 2013 499- i Panasonic GF6
 
Panasonic GM1« »+78/1005/54.5/54.5/5 Oct 2013 749- i Panasonic GM1
 
Panasonic G5« »+ +-4.5/54.5/54.5/5 Jul 2012 599- i Panasonic G5
 
Panasonic GF3« »82/10071/1004.5/54.5/54/5 Jun 2011 549- i Panasonic GF3
 
Panasonic GX1« »+77/1004.5/54.5/54.5/5 Nov 2011 699- i Panasonic GX1
 
Panasonic G10« »-70/1004/5-4/5 Mar 2010 499- i Panasonic G10
 
Panasonic G2« »-72/1004/54/54.5/5 Mar 2010 599- i Panasonic G2
 
Panasonic GF2« »82/10070/1004.5/54.5/54.5/5 Nov 2010 549- i Panasonic GF2
 
Panasonic GH2« »+ +79/1004.5/54.5/55/5 Sep 2010 899- i Panasonic GH2
 
Panasonic G1« »+ +70/1004/54.5/54.5/5 Sep 2008 599- i Panasonic G1
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (-) not available.

The review scores listed above should be treated with care, though. The assessments were made in relation to similar cameras of the same technological generation. Hence, a score should always be seen in the context of the camera's market launch date and its price, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. Also, please note that some of the review sites have changed their methodology and reporting over time.

Panasonic G3:
Check Ebay offers
Panasonic G7:
Check Ebay offers

Other camera comparisons

Did this review help to inform your camera decision process? If you would like to see a different side-by-side camera review, just use the search menu 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 Panasonic G7

    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 Panasonic G7
    Camera Type Mirrorless system camera Mirrorless system camera
    Camera Lens Micro Four Thirds lenses Micro Four Thirds lenses
    Launch Date May 2011 May 2015
    Launch Price USD 599 USD 649
    Sensor Specs Panasonic G3 Panasonic G7
    Sensor Technology CMOS CMOS
    Sensor Format Four Thirds Sensor Four Thirds Sensor
    Sensor Size 17.3 x 13.0 mm 17.3 x 13.0 mm
    Sensor Area 224.9 mm2 224.9 mm2
    Sensor Diagonal 21.6 mm 21.6 mm
    Crop Factor 2.0x 2.0x
    Sensor Resolution 15.8 Megapixels 15.8 Megapixels
    Image Resolution 4592 x 3448 pixels 4592 x 3448 pixels
    Pixel Pitch 3.77 μm 3.77 μm
    Pixel Density 7.04 MP/cm2 7.04 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability 1080/60i Video 4K/30p Video
    ISO Setting 160-6400 ISO 160-25600 ISO
    Image Processor Venus FHD Venus
    DXO Sensor Quality (score) 56 ..
    DXO Color Depth (bits) 21.0 ..
    DXO Dynamic Range (EV) 10.6 ..
    DXO Low Light (ISO) 667 ..
    Screen Specs Panasonic G3 Panasonic G7
    Viewfinder Type Electronic viewfinder Electronic viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.70x 0.70x
    Viewfinder Resolution 1440k dots 2360k dots
    LCD Framing Live View Live View
    Rear LCD Size 3.0 inch 3.0 inch
    LCD Resolution 460k dots 1040k dots
    LCD Attachment Swivel screen Swivel screen
    Touch Input Touchscreen Touchscreen
    Shooting Specs Panasonic G3 Panasonic G7
    Autofocus System Contrast-detect AF Contrast-detect AF
    Manual Focusing AidNo Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/4000/s 1/4000/s
    Continuous Shooting 4 shutter flaps/s 7 shutter flaps/s
    Electronic Shutterno E-Shutterup to 1/16000s
    Time-Lapse Photographyno IntervalometerIntervalometer built-in
    Fill Flash Build-in Flash Build-in Flash
    Storage Medium SDXC cards SDXC cards
    Second Storage Option Single card slot Single card slot
    UHS card support no UHS-II
    Connectivity Specs Panasonic G3 Panasonic G7
    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
    Wifi Support no Wifi Wifi built-in
    Body Specs Panasonic G3 Panasonic G7
    Battery Type DMW-BLD10 power pack DMW-BLC12 power pack
    Battery Life (CIPA)270 shots per charge350 shots per charge
    Body Dimensions 115 x 84 x 47 mm
    (4.5 x 3.3 x 1.9 in)
    125 x 86 x 77 mm
    (4.9 x 3.4 x 3.0 in)
    Camera Weight 336 g (11.9 oz) 410 g (14.5 oz)

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