Panasonic G3 vs GM5
The Panasonic Lumix DMC-G3 and the Panasonic Lumix DMC-GM5 are two digital cameras that were announced, respectively, in May 2011 and September 2014. Both the G3 and the GM5 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.
Going beyond this snapshot of core features and characteristics, what are the differences between the Panasonic Lumix DMC-G3 and the Panasonic Lumix DMC-GM5? 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.
The physical size and weight of the Panasonic G3 and the Panasonic GM5 are illustrated in the side-by-side display below. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. All width, height and depth measures are rounded to the nearest millimeter.
The G3 can be obtained in four different colors (black, brown, red, white), while the GM5 is available in two color-versions (black, silver).
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Panasonic GM5 is considerably smaller (39 percent) than the Panasonic G3. Moreover, the GM5 is substantially lighter (37 percent) than the G3. In this context, it is worth noting that neither the G3 nor the GM5 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 GM5 can take 220 images on a single charge of its DMW-BLH7 power pack.
The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. 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.
|1.||Panasonic G3||115 mm||84 mm||47 mm||336 g||270||n||May 2011||599||ebay.com|
|2.||Panasonic GM5||99 mm||60 mm||36 mm||211 g||220||n||Sep 2014||749||ebay.com|
|3.||Canon M||109 mm||66 mm||32 mm||298 g||230||n||Jul 2012||599||ebay.com|
|4.||Panasonic G7||125 mm||86 mm||77 mm||410 g||350||n||May 2015||649||ebay.com|
|5.||Panasonic G6||122 mm||85 mm||71 mm||390 g||340||n||Apr 2013||599||ebay.com|
|6.||Panasonic GF6||111 mm||65 mm||38 mm||323 g||340||n||Apr 2013||499||ebay.com|
|7.||Panasonic GM1||99 mm||55 mm||30 mm||204 g||230||n||Oct 2013||749||ebay.com|
|8.||Panasonic G5||120 mm||83 mm||71 mm||396 g||320||n||Jul 2012||599||ebay.com|
|9.||Panasonic GF5||108 mm||67 mm||37 mm||267 g||360||n||Apr 2012||499||ebay.com|
|10.||Panasonic GX1||116 mm||68 mm||39 mm||318 g||320||n||Nov 2011||699||ebay.com|
|11.||Panasonic G10||124 mm||84 mm||74 mm||388 g||380||n||Mar 2010||499||ebay.com|
|12.||Panasonic G2||124 mm||84 mm||74 mm||428 g||360||n||Mar 2010||599||ebay.com|
|13.||Panasonic GF2||113 mm||68 mm||33 mm||310 g||300||n||Nov 2010||549||ebay.com|
|14.||Panasonic GH2||124 mm||90 mm||76 mm||442 g||330||n||Sep 2010||899||ebay.com|
|Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.|
Any camera decision will obviously take relative prices into account. 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 G3 was launched at a somewhat lower price (by 20 percent) than the GM5, which makes it more attractive for photographers on a tight budget. 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.
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. 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 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.
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 GM5 have the same pixel density, as well as the same pixel size. It should, however, be noted that the GM5 is much more recent (by 3 years and 4 months) 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-GM5 are ISO 200 to ISO 25600, with the possibility to increase the ISO range to 100-25600.
Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.
Consistent information on actual sensor performance is available from DXO Mark for many cameras. This service is based on lab testing and assigns an overall score to each camera sensor, as well as ratings for dynamic range ("DXO Landscape"), color depth ("DXO Portrait"), and low-light sensitivity ("DXO Sports"). Of the two cameras under consideration, the GM5 has a markedly higher DXO score than the G3 (overall score 10 points higher), which will translate into better image quality. The advantage is based on 1.1 bits higher color depth, 1.1 EV in additional dynamic range, and 0.1 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.
|1.||Panasonic G3||Four Thirds||15.8||4592||3448||1080/60i||21.0||10.6||667||56|
|2.||Panasonic GM5||Four Thirds||15.8||4592||3448||1080/60p||22.1||11.7||721||66|
|4.||Panasonic G7||Four Thirds||15.8||4592||3448||4K/30p||22.8||12.4||904||71|
|5.||Panasonic G6||Four Thirds||15.9||4608||3456||1080/60p||21.3||11.5||639||61|
|6.||Panasonic GF6||Four Thirds||15.8||4592||3448||1080/60i||20.7||10.6||622||54|
|7.||Panasonic GM1||Four Thirds||15.8||4592||3448||1080/60i||22.3||11.7||660||66|
|8.||Panasonic G5||Four Thirds||15.9||4608||3456||1080/60p||21.4||11.6||618||61|
|9.||Panasonic GF5||Four Thirds||12.0||4000||3000||1080/60i||20.5||10.0||573||50|
|10.||Panasonic GX1||Four Thirds||15.8||4592||3448||1080/60p||20.8||10.6||703||55|
|11.||Panasonic G10||Four Thirds||12.0||4000||3000||720/30p||21.2||10.1||411||52|
|12.||Panasonic G2||Four Thirds||12.0||4000||3000||720/30p||21.2||10.3||493||53|
|13.||Panasonic GF2||Four Thirds||12.0||4000||3000||1080/60i||21.2||10.3||506||54|
|14.||Panasonic GH2||Four Thirds||15.9||4608||3456||1080/60i||21.2||11.3||655||60|
|Note: DXO values in italics represent estimates based on sensor size and age.|
Many modern cameras cannot only take still pictures, but also record videos. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the GM5 provides a faster frame rate than the G3. It can shoot movie footage at 1080/60p, while the G3 is limited to 1080/60i.
Beyond 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 G3 offers a higher resolution than the one in the GM5 (1440k vs 1166k dots). The table below summarizes some of the other core capabilities of the Panasonic G3 and Panasonic GM5 in connection with corresponding information for a sample of similar cameras.
|1.||Panasonic G3||1440||n||3.0 / 460||swivel||Y||1/4000s||4.0/s||Y||n|
|2.||Panasonic GM5||1166||n||3.0 / 921||fixed||Y||1/500s||5.8/s||n||n|
|3.||Canon M||none||n||3.0 / 1040||fixed||Y||1/4000s||4.3/s||n||n|
|4.||Panasonic G7||2360||n||3.0 / 1040||swivel||Y||1/4000s||7.0/s||Y||n|
|5.||Panasonic G6||1440||n||3.0 / 1036||swivel||Y||1/4000s||7.0/s||Y||n|
|6.||Panasonic GF6||none||n||3.0 / 1040||tilting||Y||1/4000s||4.2/s||Y||n|
|7.||Panasonic GM1||none||n||3.0 / 1036||fixed||Y||1/500s||5.0/s||Y||n|
|8.||Panasonic G5||1440||n||3.0 / 920||swivel||Y||1/4000s||6.0/s||Y||n|
|9.||Panasonic GF5||none||n||3.0 / 920||fixed||Y||1/4000s||4.0/s||Y||n|
|10.||Panasonic GX1||optional||n||3.0 / 460||fixed||Y||1/4000s||4.2/s||Y||n|
|11.||Panasonic G10||202||n||3.0 / 460||fixed||n||1/4000s||2.6/s||Y||n|
|12.||Panasonic G2||1440||n||3.0 / 460||swivel||Y||1/4000s||2.6/s||Y||n|
|13.||Panasonic GF2||optional||n||3.0 / 460||fixed||Y||1/4000s||2.6/s||Y||n|
|14.||Panasonic GH2||1534||n||3.0 / 460||swivel||n||1/4000s||3.0/s||Y||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 GM5 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 GM5 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 GM5 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 GM5 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 GM5 write their files to SDXC cards. The GM5 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.
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-GM5 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
Mic / Speaker
|1.||Panasonic G3||Y||stereo / mono||-||-||mini||2.0||-||-||-|
|2.||Panasonic GM5||Y||stereo / mono||-||-||micro||2.0||Y||-||-|
|3.||Canon M||Y||stereo / mono||Y||-||mini||2.0||-||-||-|
|4.||Panasonic G7||Y||stereo / mono||Y||-||micro||2.0||Y||-||-|
|5.||Panasonic G6||Y||stereo / mono||Y||-||mini||2.0||Y||Y||-|
|6.||Panasonic GF6||-||stereo / mono||-||-||mini||2.0||Y||Y||-|
|7.||Panasonic GM1||-||stereo / mono||-||-||micro||2.0||Y||-||-|
|8.||Panasonic G5||Y||stereo / mono||-||-||mini||2.0||-||-||-|
|9.||Panasonic GF5||-||stereo / mono||-||-||mini||2.0||-||-||-|
|10.||Panasonic GX1||Y||stereo / mono||-||-||mini||2.0||-||-||-|
|11.||Panasonic G10||Y||mono / -||-||-||mini||2.0||-||-||-|
|12.||Panasonic G2||Y||stereo / mono||-||-||mini||2.0||-||-||-|
|13.||Panasonic GF2||Y||stereo / mono||-||-||mini||2.0||-||-||-|
|14.||Panasonic GH2||Y||stereo / mono||Y||-||mini||2.0||-||-||-|
It is notable that the GM5 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 GM5 have been discontinued, but can regularly be found used on ebay. The G3 was replaced by the Panasonic G5, while the GM5 does not have a direct successor. Further information on the features and operation of the G3 and GM5 can be found, respectively, in the Panasonic G3 Manual (free pdf) or the online Panasonic GM5 Manual.
So what is the bottom line? Is there a clear favorite between the Panasonic G3 and the Panasonic GM5? Which camera is better? A synthesis of the relative strong points of each of the models is listed below.
Advantages of the Panasonic Lumix DMC-G3:
- More detailed viewfinder: Has higher resolution electronic viewfinder (1440k vs 1166k dots).
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.70x vs 0.46x).
- More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
- More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
- Faster shutter: Has higher mechanical shutter speed (1/4000s vs 1/500s) to freeze action.
- Longer lasting: Can take more shots (270 versus 220) on a single battery charge.
- Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
- More affordable: Was introduced into a lower priced segment (20 percent cheaper at launch).
- More heavily discounted: Has been available for much longer (launched in May 2011).
Reasons to prefer the Panasonic Lumix DMC-GM5:
- Better image quality: Scores markedly higher (10 points) in the DXO overall evaluation.
- Richer colors: Generates noticeably more natural colors (1.1 bits more color depth).
- More dynamic range: Captures a broader range of light and dark details (1.1 EV of extra DR).
- Better video: Provides higher movie framerates (1080/60p versus 1080/60i).
- More detailed LCD: Has a higher resolution rear screen (921k vs 460k dots).
- Faster burst: Shoots at higher frequency (5.8 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.
- More compact: Is smaller (99x60mm vs 115x84mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 125g or 37 percent) and is thus easier to take along.
- 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-I standard.
- More modern: Reflects 3 years and 4 months of technical progress since the G3 launch.
If the number of relative strengths (bullet points above) is taken as a guide, the GM5 is the clear winner of the contest (13 : 9 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.
How about other alternatives? Do the specifications of the Panasonic G3 and the Panasonic GM5 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 remains incomplete and does no justice, for example, to the way the G3 or the GM5 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.
This is why hands-on reviews by experts are important. The table below provides a synthesis of the camera assessments of some of the best known photo-gear review sites (amateurphotographer [AP], cameralabs [CL], digitalcameraworld [DCW], dpreview [DPR], ephotozine [EPZ], photographyblog [PB]). As can be seen, the professional reviewers agree in many cases on the quality of different cameras, but sometimes their assessments diverge, reinforcing the earlier point that a camera decision is often a very personal choice.
|1.||Panasonic G3||3/5||+ +||..||75/100||4.5/5||5/5||May 2011||599||ebay.com|
|2.||Panasonic GM5||3.5/5||+||..||77/100||5/5||4.5/5||Sep 2014||749||ebay.com|
|3.||Canon M||3/5||+||..||..||4/5||4/5||Jul 2012||599||ebay.com|
|4.||Panasonic G7||4/5||+ +||3.5/5||80/100||5/5||4.5/5||May 2015||649||ebay.com|
|5.||Panasonic G6||4/5||+ +||..||..||5/5||4.5/5||Apr 2013||599||ebay.com|
|6.||Panasonic GF6||..||+ +||..||..||4.5/5||4.5/5||Apr 2013||499||ebay.com|
|7.||Panasonic GM1||3/5||+||..||78/100||5/5||4.5/5||Oct 2013||749||ebay.com|
|8.||Panasonic G5||3/5||+ +||..||..||4.5/5||4.5/5||Jul 2012||599||ebay.com|
|9.||Panasonic GF5||3/5||..||..||..||4.5/5||4.5/5||Apr 2012||499||ebay.com|
|10.||Panasonic GX1||3/5||+||..||77/100||4.5/5||4.5/5||Nov 2011||699||ebay.com|
|11.||Panasonic G10||3/5||..||..||70/100||4/5||4/5||Mar 2010||499||ebay.com|
|12.||Panasonic G2||..||..||..||72/100||4/5||4.5/5||Mar 2010||599||ebay.com|
|13.||Panasonic GF2||3/5||82/100||..||70/100||4.5/5||4.5/5||Nov 2010||549||ebay.com|
|14.||Panasonic GH2||5/5||+ +||..||79/100||4.5/5||5/5||Sep 2010||899||ebay.com|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
The review scores listed above should be treated with care, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and comparisons of ratings among very different cameras or across long time periods have little meaning. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.
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 make a corresponding selection in the search boxes 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.
- Canon 300D vs Panasonic GM5
- Canon 400D vs Panasonic G3
- Canon G1 X Mark II vs Panasonic G3
- Canon G1 X Mark II vs Panasonic GM5
- Canon G1 X Mark III vs Panasonic G3
- Canon T5i vs Panasonic G3
- Fujifilm X-T10 vs Panasonic GM5
- Panasonic FZ82 vs Panasonic G3
- Panasonic G3 vs Panasonic GX850
- Panasonic G95 vs Panasonic GM5
- Panasonic GM5 vs Samsung NX1
- Panasonic GM5 vs Sony RX100 III
Specifications: Panasonic G3 vs Panasonic GM5
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 Model||Panasonic G3||Panasonic GM5|
|Camera Type||Mirrorless system camera||Mirrorless system camera|
|Camera Lens||Micro Four Thirds lenses||Micro Four Thirds lenses|
|Launch Date||May 2011||September 2014|
|Launch Price||USD 599||USD 749|
|Sensor Specs||Panasonic G3||Panasonic GM5|
|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|
|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||1080/60p Video|
|ISO Setting||160 - 6,400 ISO||200 - 25,600 ISO|
|ISO Boost||no Enhancement||100 - 25,600 ISO|
|Image Processor||Venus FHD||Venus|
|DXO Sensor Quality (score)||56||66|
|DXO Color Depth (bits)||21.0||22.1|
|DXO Dynamic Range (EV)||10.6||11.7|
|DXO Low Light (ISO)||667||721|
|Screen Specs||Panasonic G3||Panasonic GM5|
|Viewfinder Type||Electronic viewfinder||Electronic viewfinder|
|Viewfinder Field of View||100%||100%|
|Viewfinder Resolution||1440k dots||1166k dots|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0inch||3.0inch|
|LCD Resolution||460k dots||921k dots|
|LCD Attachment||Swivel screen||Fixed screen|
|Shooting Specs||Panasonic G3||Panasonic GM5|
|Focus System||Contrast-detect AF||Contrast-detect AF|
|Manual Focusing Aid||no Peaking Feature||Focus Peaking|
|Max Shutter Speed (mechanical)||1/4000s||1/500s|
|Continuous Shooting||4 shutter flaps/s||5.8 shutter flaps/s|
|Electronic Shutter||no E-Shutter||up to 1/16000s|
|Time-Lapse Photography||no Intervalometer||Intervalometer built-in|
|Fill Flash||Built-in Flash||no On-Board Flash|
|Storage Medium||SDXC cards||SDXC cards|
|Single or Dual Card Slots||Single card slot||Single card slot|
|UHS card support||no||UHS-I|
|Connectivity Specs||Panasonic G3||Panasonic GM5|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||mini HDMI||micro HDMI|
|Wifi Support||no Wifi||Wifi built-in|
|Body Specs||Panasonic G3||Panasonic GM5|
|Battery Life (CIPA)||270 shots per charge||220 shots per charge|
115 x 84 x 47 mm
(4.5 x 3.3 x 1.9 in)
99 x 60 x 36 mm
(3.9 x 2.4 x 1.4 in)
|Camera Weight||336 g (11.9 oz)||211 g (7.4 oz)|
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