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Panasonic G3 vs GF3

The Panasonic Lumix DMC-G3 and the Panasonic Lumix DMC-GF3 are two digital cameras that were announced, respectively, in May 2011 and June 2011. Both the G3 and the GF3 are mirrorless interchangeable lens cameras that are equipped with a Four Thirds sensor. The G3 has a resolution of 15.8 megapixels, whereas the GF3 provides 12 MP.

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

Headline Specifications
Panasonic G3   Panasonic GF3
Panasonic G3 Panasonic GF3
Mirrorless system camera Mirrorless system camera
Micro Four Thirds lenses Micro Four Thirds lenses
15.8 MP, Four Thirds Sensor 12 MP, Four Thirds Sensor
1080/60i Video 1080/60i Video
ISO 160-6400 ISO 160-6400
Electronic viewfinder (1440k dots) No viewfinder, LCD framing
3.0" LCD, 460k dots 3.0" LCD, 460k dots
Swivel touchscreen Fixed touchscreen
4 shutter flaps per second 3.2 shutter flaps per second
270 shots per battery charge300 shots per battery charge
115 x 84 x 47 mm, 336 g 108 x 67 x 32 mm, 264 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-GF3? 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 GF3

The side-by-side display below illustrates the physical size and weight of the Panasonic G3 and the Panasonic GF3. 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 GF3 is available in five color-versions (black, brown, pink, red, white).

Size Panasonic G3 vs Panasonic GF3
Compare G3 versus GF3 top
Comparison G3 or GF3 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Panasonic GF3 is notably smaller (25 percent) than the Panasonic G3. Moreover, the GF3 is markedly lighter (21 percent) than the G3. In this context, it is worth noting that neither the G3 nor the GF3 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 GF3 can take 300 images on a single charge of its DMW-BLE9 power pack.

The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. If you want to switch the focus of the display and review another camera pair, just select a new right or left comparator from among the camera models in the table. Alternatively, you can also move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons 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» 115 mm 84 mm 47 mm 336 g 270 n May 2011 599- i Panasonic G3
 
Panasonic GF3« 108 mm 67 mm 32 mm 264 g 300 n Jun 2011 549- i Panasonic GF3
 
Canon M« » 109 mm 66 mm 32 mm 298 g 230 n Jul 2012 599- i Canon M
 
Panasonic G7« » 125 mm 86 mm 77 mm 410 g 350 n May 2015 649- i Panasonic G7
 
Panasonic G6« » 122 mm 85 mm 71 mm 390 g 340 n Apr 2013 599- i Panasonic G6
 
Panasonic GF6« » 111 mm 65 mm 38 mm 323 g 340 n Apr 2013 499- i Panasonic GF6
 
Panasonic G5« » 120 mm 83 mm 71 mm 396 g 320 n Jul 2012 599- i Panasonic G5
 
Panasonic GF5« » 108 mm 67 mm 37 mm 267 g 360 n Apr 2012 499- i Panasonic GF5
 
Panasonic LX7« » 111 mm 68 mm 46 mm 298 g 330 n Jul 2012 499- i Panasonic LX7
 
Panasonic GX1« » 116 mm 68 mm 39 mm 318 g 320 n Nov 2011 699- i Panasonic GX1
 
Panasonic G10« » 124 mm 84 mm 74 mm 388 g 380 n Mar 2010 499- i Panasonic G10
 
Panasonic G2« » 124 mm 84 mm 74 mm 428 g 360 n Mar 2010 599- i Panasonic G2
 
Panasonic GF2« » 113 mm 68 mm 33 mm 310 g 300 n Nov 2010 549- i Panasonic GF2
Note: Measurements and pricing do not include easily detachable parts, such as 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 GF3 was somewhat cheaper (by 8 percent) than the G3 at launch, but both cameras fall into the same price category. 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: Panasonic G3 vs GF3

The size of the sensor inside a digital camera is one of the key determinants 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. 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.

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 GF3 sensor measures

While the two cameras under review share the same sensor size, the G3 offers a higher resolution of 15.8 megapixels, compared with 12 MP of the GF3. This megapixels advantage translates into a 15 percent gain in linear resolution. On the other hand, these sensor specs imply that the G3 has a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 3.77μm versus 4.33μm for the GF3). It is noteworthy in this context that the two cameras were released in close succession, so that their sensors are from the same technological generation.

The resolution advantage of the Panasonic G3 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the G3 for good quality output (200 dots per inch) amounts to 23 x 17.2 inch or 58.3 x 43.8 cm, for very good quality (250 dpi) 18.4 x 13.8 inch or 46.7 x 35 cm, and for excellent quality (300 dpi) 15.3 x 11.5 inch or 38.9 x 29.2 cm. The corresponding values for the Panasonic GF3 are 20 x 15 inch or 50.8 x 38.1 cm for good quality, 16 x 12 inch or 40.6 x 30.5 cm for very good quality, and 13.3 x 10 inch or 33.9 x 25.4 cm for excellent quality prints.

The Panasonic Lumix DMC-G3 has a native sensitivity range from ISO 160 to ISO 6400. The Panasonic Lumix DMC-GF3 offers exactly the same ISO settings.

G3 versus GF3 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 review, the G3 has a notably higher overall DXO score than the GF3 (overall score 7 points higher), which gives it an advantage in terms of imaging quality. This advantage is based on 0.4 bits higher color depth, 0.6 EV in additional dynamic range, and 0.5 stops in additional low light sensitivity. The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar 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 GF3« Four Thirds 12.0 4000 30001080/60i20.610.045849Panasonic GF3
 
Canon M« » APS-C 17.9 5184 34561080/30p22.111.282765Canon M
 
Panasonic G7« » Four Thirds 15.8 4592 34484K/30p----Panasonic G7
 
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 G5« » Four Thirds 15.9 4608 34561080/60p----Panasonic G5
 
Panasonic GF5« » Four Thirds 12.0 4000 30001080/60i21.411.661861Panasonic GF5
 
Panasonic LX7« » 1/1.7 10.0 3648 27361080/60p20.711.714750Panasonic LX7
 
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

Many modern cameras cannot only take still pictures, but also record videos. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, and both provide the same movie specifications (1080/60i).

 

Feature comparison: Panasonic G3 vs GF3

Apart from body and sensor, cameras can and do differ across a variety of features. For example, the G3 has an electronic viewfinder (1440k dots), which can be very helpful when shooting in bright sunlight. In contrast, the GF3 relies on live view and the rear LCD for framing. The table below summarizes some of the other core capabilities of the Panasonic G3 and Panasonic GF3 in connection with corresponding information for a sample of similar cameras.

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 GF3«- n 3.0 460 fixed Y 1/4000s 3.2 Y n Panasonic GF3
 
Canon M« »- n 3.0 1040 fixed Y 1/4000s 4.3 n n Canon M
 
Panasonic G7« »2360 n 3.0 1040 swivel Y 1/4000s 7.0 Y n Panasonic G7
 
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 G5« »1440 n 3.0 920 swivel Y 1/4000s 6.0 Y n Panasonic G5
 
Panasonic GF5« »- n 3.0 920 fixed Y 1/4000s 4.0 Y n Panasonic GF5
 
Panasonic LX7« »- n 3.0 920 fixed n 1/4000s 11.0 Y Y Panasonic LX7
 
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
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 GF3 does not have a selfie-screen.

Concerning the storage of imaging data, both the G3 and the GF3 write their files to SDXC cards.

 

Connectivity comparison: Panasonic G3 vs GF3

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-GF3 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 GF3«-stereomono--mini2.0---Panasonic GF3
 
Canon M« »YstereomonoY-mini2.0---Canon M
 
Panasonic G7« »YstereomonoY-micro2.0Y--Panasonic G7
 
Panasonic G6« »YstereomonoY-mini2.0YY-Panasonic G6
 
Panasonic GF6« »-stereomono--mini2.0YY-Panasonic GF6
 
Panasonic G5« »Ystereomono--mini2.0---Panasonic G5
 
Panasonic GF5« »-stereomono--mini2.0---Panasonic GF5
 
Panasonic LX7« »Ystereomono--mini2.0---Panasonic LX7
 
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

It is notable that the G3 has a hotshoe, while the GF3 does not. This socket makes it possible to easily attach optional accessories, such as an external flash gun.

Both the G3 and the GF3 have been discontinued, but can regularly be found used on eBay. The G3 was replaced by the Panasonic G5, while the GF3 was followed by the Panasonic GF5. 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 GF3

So what is the bottom line? Which of the two cameras – the Panasonic G3 or the Panasonic GF3 – has the upper hand? Is one clearly better than the other? Below is a summary of the relative strengths of each of the two contestants.


Advantages of the Panasonic Lumix DMC-G3:

  • More detail: Offers more megapixels (15.8 vs 12MP) with a 15% higher linear resolution.
  • Better image quality: Scores markedly higher (7 points) in the DXO overall assessment.
  • More dynamic range: Captures a larger spectrum of light and dark details (0.6 EV of extra DR).
  • Better low-light sensitivity: Requires less light for good images (0.5 stops ISO advantage).
  • Easier framing: Has an electronic viewfinder for image framing and settings control.
  • More flexible LCD: Has 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.
  • Faster burst: Shoots at higher frequency (4 vs 3.2 flaps/sec) to capture the decisive moment.
  • Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.


Reasons to prefer the Panasonic Lumix DMC-GF3:

  • More compact: Is smaller (108x67mm vs 115x84mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 72g or 21 percent) and is thus easier to take along.
  • Longer lasting: Gets more shots (300 versus 270) out of a single battery charge.

If the count of individual advantages (bullet points above) is taken as a guide, the G3 is the clear winner of the match-up (9 : 3 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 09:03 GF3

How about other alternatives? Do the specifications of the Panasonic G3 and the Panasonic GF3 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 G3 or the GF3. User reviews that are available, for instance, at amazon can sometimes shed light on these issues, but such feedback is all too often partial, inconsistent, and inaccurate.

Expert reviews: Panasonic G3 vs GF3

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.

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 GF3«82/10071/1004.5/54.5/54/5 Jun 2011 549- i Panasonic GF3
 
Canon M« »+-4/53.5/54/5 Jul 2012 599- i Canon M
 
Panasonic G7« »+ +80/1005/54.5/54.5/5 May 2015 649- i Panasonic G7
 
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 G5« »+ +-4.5/54.5/54.5/5 Jul 2012 599- i Panasonic G5
 
Panasonic GF5« »--4.5/54/54.5/5 Apr 2012 499- i Panasonic GF5
 
Panasonic LX7« »+ +75/1004/55/54.5/5 Jul 2012 499- i Panasonic LX7
 
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
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (-) not available.

The above review scores should be interpreted with care, though. The ratings are only valid when referring to cameras in the same category and of the same age. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, and comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. It should also be noted that some of the review sites have over time altered the way they render their verdicts.

Panasonic G3:
Check Ebay offers
Panasonic GF3:
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 Panasonic GF3

    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 GF3
    Camera Type Mirrorless system camera Mirrorless system camera
    Camera Lens Micro Four Thirds lenses Micro Four Thirds lenses
    Launch Date May 2011 June 2011
    Launch Price USD 599 USD 549
    Sensor Specs Panasonic G3 Panasonic GF3
    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 12 Megapixels
    Image Resolution 4592 x 3448 pixels 4000 x 3000 pixels
    Pixel Pitch 3.77 μm 4.33 μm
    Pixel Density 7.04 MP/cm2 5.34 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability 1080/60i Video 1080/60i Video
    ISO Setting 160-6400 ISO 160-6400 ISO
    Image Processor Venus FHD Venus FHD
    DXO Sensor Quality (score) 56 49
    DXO Color Depth (bits) 21.0 20.6
    DXO Dynamic Range (EV) 10.6 10.0
    DXO Low Light (ISO) 667 458
    Screen Specs Panasonic G3 Panasonic GF3
    Viewfinder Type Electronic viewfinder No viewfinder
    Viewfinder Field of View 100%
    Viewfinder Magnification 0.70x
    Viewfinder Resolution 1440k dots
    LCD Framing Live View Live View
    Rear LCD Size 3.0 inch 3.0 inch
    LCD Resolution 460k dots 460k dots
    LCD Attachment Swivel screen Fixed screen
    Touch Input Touchscreen Touchscreen
    Shooting Specs Panasonic G3 Panasonic GF3
    Autofocus System Contrast-detect AF Contrast-detect AF
    Continuous Shooting 4 shutter flaps/s 3.2 shutter flaps/s
    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 no
    Connectivity Specs Panasonic G3 Panasonic GF3
    External Flash Hotshoe no Hotshoe
    USB Connector USB 2.0 USB 2.0
    HDMI Port mini HDMI mini HDMI
    Wifi Support no Wifi no Wifi
    Body Specs Panasonic G3 Panasonic GF3
    Battery Type DMW-BLD10 power pack DMW-BLE9 power pack
    Battery Life (CIPA)270 shots per charge300 shots per charge
    Body Dimensions 115 x 84 x 47 mm
    (4.5 x 3.3 x 1.9 in)
    108 x 67 x 32 mm
    (4.3 x 2.6 x 1.3 in)
    Camera Weight 336 g (11.9 oz) 264 g (9.3 oz)

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