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Panasonic GX9 versus Canon M3

The Panasonic Lumix DC-GX9 and the Canon EOS M3 are two digital cameras that were announced, respectively, in February 2018 and February 2015. Both the GX9 and the M3 are mirrorless interchangeable lens cameras that are based on a Four Thirds (GX9) and an APS-C (M3) sensor. The Panasonic has a resolution of 20.2 megapixel, whereas the Canon provides 24 MP. Read on to find out how these two cameras compare with respect to their size, their sensors, their features, and their reception by expert reviewers.

Body comparison: Panasonic GX9 vs Canon M3

An illustration of the physical size and weight of the Panasonic GX9 and the Canon M3 is provided in the side-by-side display below. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. All width, height and depth dimensions are rounded to the nearest millimeter. You can also toggle the display to switch to a percentage comparison if you prefer that the measures are being expressed in relative terms (in this case, the camera on the left side – the GX9 – represents the basis for the calculations across all the size and weight measures).

Compare Panasonic GX9 vs Canon M3
Compare GX9 versus M3 top
Compare GX9 and M3 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Canon M3 is notably smaller (15 percent) than the Panasonic GX9. Moreover, the M3 is markedly lighter (10 percent) than the GX9. In this context, it is worth noting that neither the GX9 nor the M3 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. Hence, you might want to study the specifications of available lenses in order to get the full picture of the size and weight of the two camera systems.

Concerning battery life, the GX9 gets 260 shots out of its DMW-BLG10 battery, while the M3 can take 250 images on a single charge of its LP-E17 power pack.

The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. In case you want to display and compare another camera duo, just click on the right or left arrow next to the camera that you would like to inspect. Alternatively, you can also use the CAM-parator to select your camera combination among a larger number of options.

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 GX9» 4.9 in 2.8 in 1.9 in 14.4 oz 260 n Feb 2018 849 i i Panasonic GX9
Canon M3« 4.4 in 2.7 in 1.7 in 12.9 oz 250 n Feb 2015 679- i Canon M3
Canon M50« » 4.6 in 3.5 in 2.3 in 13.8 oz 235 n Feb 2018 779 i i Canon M50
Canon M6« » 4.4 in 2.7 in 1.8 in 13.8 oz 295 n Feb 2017 779 i i Canon M6
Canon M5« » 4.6 in 3.5 in 2.4 in 15.1 oz 295 n Sep 2016 979 i i Canon M5
Canon G7 X« » 4.1 in 2.4 in 1.6 in 10.7 oz 210 n Sep 2014 699- i Canon G7 X
Canon M« » 4.3 in 2.6 in 1.3 in 10.5 oz 230 n Jul 2012 599- i Canon M
Olympus E-PL9« » 4.6 in 2.7 in 1.5 in 13.4 oz 350 n Feb 2018 549 i i Olympus E-PL9
Olympus E-M10 III« » 4.8 in 3.3 in 2.0 in 14.5 oz 330 n Aug 2017 649 i i Olympus E-M10 III
Olympus PEN-F« » 4.9 in 2.8 in 1.5 in 15.1 oz 330 n Jan 2016 1,199 i i Olympus PEN-F
Olympus E-M10 II« » 4.7 in 3.3 in 1.9 in 13.8 oz 320 n Aug 2015 799- i Olympus E-M10 II
Panasonic LX100 II« » 4.5 in 2.6 in 2.6 in 13.8 oz 300 n Aug 2018 999 i i Panasonic LX100 II
Panasonic ZS200« » 4.4 in 2.6 in 1.8 in 12.0 oz 370 n Feb 2018 799 i i Panasonic ZS200
Panasonic G9« » 5.4 in 3.8 in 3.6 in 23.2 oz 400 Y Nov 2017 1,699 i i Panasonic G9
Panasonic GX85« » 4.8 in 2.8 in 1.7 in 15.0 oz 290 n Apr 2016 799 i i Panasonic GX85
Panasonic GX8« » 5.2 in 3.1 in 2.5 in 17.2 oz 330 Y Jul 2015 1,199- i Panasonic GX8
Panasonic GX7« » 4.8 in 2.8 in 2.2 in 14.2 oz 350 n Aug 2013 999- i Panasonic GX7

Any camera purchase will naturally be influenced heavily by the price. The manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The M3 was launched at a somewhat lower price (by 20 percent) than the GX9, 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.

 

Sensor comparison: Panasonic GX9 vs Canon M3

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.

Of the two cameras under consideration, the Panasonic GX9 features a Four Thirds sensor and the Canon M3 an APS-C sensor. The sensor area in the M3 is 48 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 2.0 and 1.6. The sensor in the GX9 has a native 4:3 aspect ratio, while the one in the M3 offers a 3:2 aspect.

Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors.

Panasonic GX9 and Canon M3 sensor measures

With 24MP, the M3 offers a higher resolution than the GX9 (20.2MP), but the M3 nevertheless has larger individual pixels (pixel pitch of 3.72μm versus 3.34μm for the GX9) due to its larger sensor. However, the GX9 is a much more recent model (by 3 years) than the M3, and its sensor will have benefitted from technological advances during this time that enhance the light gathering capacity of its pixel-units. Coming back to sensor resolution, it should be mentioned that the GX9 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The M3 has on-sensor phase detect pixels, which results in relatively fast and reliable autofocus acquisition during video recording.

GX9 versus M3 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. 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 GX9» Four Thirds 20.2 5184 38884K/30p----Panasonic GX9
Canon M3« APS-C 24.0 6000 40001080/30p22.811.8116972Canon M3
Canon M50« » APS-C 24.0 6000 40004K/24p----Canon M50
Canon M6« » APS-C 24.0 6000 40001080/60p----Canon M6
Canon M5« » APS-C 24.0 6000 40001080/60p23.412.4126277Canon M5
Canon G7 X« » 1-inch 20.0 5472 36481080/60p23.012.755671Canon G7 X
Canon M« » APS-C 17.9 5184 34561080/30p22.111.282765Canon M
Olympus E-PL9« » Four Thirds 15.9 4608 34564K/30p----Olympus E-PL9
Olympus E-M10 III« » Four Thirds 15.9 4608 34564K/30p----Olympus E-M10 III
Olympus PEN-F« » Four Thirds 20.2 5184 38881080/60p23.112.489474Olympus PEN-F
Olympus E-M10 II« » Four Thirds 15.9 4608 34561080/60p23.112.584273Olympus E-M10 II
Panasonic LX100 II« » Four Thirds 16.8 4736 35524K/30p----Panasonic LX100 II
Panasonic ZS200« » 1-inch 20.0 5472 36484K/30p----Panasonic ZS200
Panasonic G9« » Four Thirds 20.2 5184 38884K/60p----Panasonic G9
Panasonic GX85« » Four Thirds 15.8 4592 34484K/30p22.912.666271Panasonic GX85
Panasonic GX8« » Four Thirds 20.2 5184 38884K/30p23.512.680675Panasonic GX8
Panasonic GX7« » Four Thirds 15.8 4592 34481080/60p22.612.271870Panasonic GX7

Many modern cameras are not only capable of taking still images, but can also record movies. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, but the GX9 provides a higher video resolution than the M3. It can shoot video footage at 4K/30p, while the Canon is limited to 1080/30p.

 

Feature comparison: Panasonic GX9 vs Canon M3

Beyond body and sensor, cameras can and do differ across a range of features. For example, the GX9 has an electronic viewfinder (2760k dots), which can be very helpful when shooting in bright sunlight. In contrast, the M3 relies on live view and the rear LCD for framing. That said, the M3 can be equipped with an optional viewfinder – the EVF-DC1. The adjacent table lists some of the other core features of the Panasonic GX9 and Canon M3 along with similar information for a selection of comparators. The full specs-sheets can be found in the camera manual or in the dpreview camera hub.

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)
Shutter
speed
(1/sec)
Shutter
flaps
(1/sec)
Build-in
Flash
(yes/no)
Build-in
Image
Stab
Camera
Model
Panasonic GX9»2760 n 3.0 1240 tilting Y 4000 9.0 Y Y Panasonic GX9
Canon M3«- n 3.0 1040 tilting Y 4000 4.2 Y n Canon M3
Canon M50« »2360 n 3.0 1040 swivel Y 4000 10.0 Y n Canon M50
Canon M6« »- n 3.0 1040 tilting Y 4000 9.0 Y n Canon M6
Canon M5« »2360 n 3.2 1620 tilting Y 4000 9.0 Y n Canon M5
Canon G7 X« »- n 3.0 1040 tilting Y 2000 6.5 Y Y Canon G7 X
Canon M« »- n 3.0 1040 fixed Y 4000 4.3 n n Canon M
Olympus E-PL9« »- n 3.0 1040 tilting Y 4000 8.6 Y Y Olympus E-PL9
Olympus E-M10 III« »2360 n 3.0 1040 tilting Y 4000 8.6 Y Y Olympus E-M10 III
Olympus PEN-F« »2360 n 3.0 1037 swivel Y 8000 10.0 n Y Olympus PEN-F
Olympus E-M10 II« »2360 n 3.0 1040 tilting Y 4000 8.0 Y Y Olympus E-M10 II
Panasonic LX100 II« »2764 n 3.0 1240 fixed Y 4000 11.0 n Y Panasonic LX100 II
Panasonic ZS200« »2330 n 3.0 1240 fixed Y 2000 10.0 Y Y Panasonic ZS200
Panasonic G9« »3680 Y 3.0 1040 swivel Y 8000 20.0 n Y Panasonic G9
Panasonic GX85« »2765 n 3.0 1040 tilting Y 4000 8.0 Y Y Panasonic GX85
Panasonic GX8« »2360 n 3.0 1040 swivel Y 8000 10.0 n Y Panasonic GX8
Panasonic GX7« »2760 n 3.0 1040 tilting Y 8000 5.0 Y Y Panasonic GX7

One feature that differentiates the GX9 and the M3 is in-body image stabilization (IBIS). The GX9 reduces the risk of handshake-induced blur with all attached lenses, while the M3 has to rely on optical image stabilization in OIS-equipped lenses to achieve the same effect.

The reported shutter speed and shutter burst refer to the use of the mechanical shutter. In addition, the GX9 features an electronic shutter, which makes completely silent shooting possible. However, this mode is less suitable for photographing moving objects (rolling shutter) or shooting under artificial light sources (flickering).

Both the GX9 and the M3 write their imaging data to SDXC cards.

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 GX9»Ystereomono--micro2.0Y-YPanasonic GX9
Canon M3«YstereomonoY-mini2.0YY-Canon M3
Canon M50« »YstereomonoY-micro2.0YYYCanon M50
Canon M6« »YstereomonoY-mini2.0YYYCanon M6
Canon M5« »YstereomonoY-mini2.0YYYCanon M5
Canon G7 X« »-stereomono--micro2.0YY-Canon G7 X
Canon M« »YstereomonoY-mini2.0---Canon M
Olympus E-PL9« »Ystereomono--micro2.0Y-YOlympus E-PL9
Olympus E-M10 III« »Ystereomono--micro2.0Y--Olympus E-M10 III
Olympus PEN-F« »Ystereomono--micro2.0Y--Olympus PEN-F
Olympus E-M10 II« »Ystereomono--micro2.0Y--Olympus E-M10 II
Panasonic LX100 II« »Ystereomono--micro2.0Y-YPanasonic LX100 II
Panasonic ZS200« »-stereomono--micro2.0Y--Panasonic ZS200
Panasonic G9« »YstereomonoYYfull3.0Y-YPanasonic G9
Panasonic GX85« »Ystereomono--micro2.0Y--Panasonic GX85
Panasonic GX8« »YstereomonoY-micro2.0YY-Panasonic GX8
Panasonic GX7« »Ystereomono--mini2.0YY-Panasonic GX7

The GX9 is a recent model that features in the current product line-up of Panasonic. In contrast, the M3 has been discontinued (but it can be found pre-owned on eBay). As a replacement in the same line of cameras, the M3 was succeeded by the Canon M6.

Review summary: Panasonic GX9 vs Canon M3

So how do things add up? Is there a clear favorite between the Panasonic GX9 and the Canon M3? The listing below highlights the relative strengths of the two models.

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Arguments in favor of the Panasonic Lumix DC-GX9:

  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • Better video: Provides higher definition movie capture (4K/30p vs 1080/30p).
  • Easier framing: Has an electronic viewfinder for image framing and settings control.
  • More detailed LCD: Has a higher resolution rear screen (1240k vs 1040k dots).
  • Faster burst: Shoots at higher frequency (9 vs 4.2 flaps/sec) to capture the decisive moment.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • Sharper images: Has hand-shake reducing image stabilization build-in.
  • Easier wireless transfer: Supports Bluetooth for image sharing without cables.
  • More modern: Reflects 3 years of technical progress since the M3 launch.

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Advantages of the Canon EOS M3:

  • More detail: Has more megapixels (24 vs 20.2MP), which boosts linear resolution by 11%.
  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • Better video autofocus: Features on-sensor phase-detection for more confident movie autofocus.
  • Better sound: Can connect to an external microphone for higher quality sound recording.
  • More compact: Is smaller (111x68mm vs 124x72mm) and will fit more readily into a bag.
  • Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
  • More affordable: Was released into a lower priced segment (20 percent cheaper at launch).
  • More heavily discounted: Has been around for much longer (launched in February 2015).

If the number of relative strengths (bullet points above) is taken as a guide, the GX9 comes out slightly ahead of the M3 (9 : 8 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.

GX9 09:08 M3

In any case, while the comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it remains incomplete and does no justice, for example, to the way the GX9 or the M3 handle or 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 where reviews by experts come in. The table below summarizes the assessments of some of the best known camera review sites (cameralabs, dpreview, ephotozine, imaging-resource, photographyblog). The full reviews are available by clicking on the site logo in the table header.

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 GX9»Rec84/1004.5/54.5/54.5/5 Feb 2018 849 i i Panasonic GX9
Canon M3«rev75/1004.5/54.5/54/5 Feb 2015 679- i Canon M3
Canon M50« »Rec79/100--3.5/5 Feb 2018 779 i i Canon M50
Canon M6« »-80/1004/54.5/54/5 Feb 2017 779 i i Canon M6
Canon M5« »Rec82/1004/54.5/54/5 Sep 2016 979 i i Canon M5
Canon G7 X« »HiRec77/1004.5/53.5/54.5/5 Sep 2014 699- i Canon G7 X
Canon M« »Rec-4/53.5/54/5 Jul 2012 599- i Canon M
Olympus E-PL9« »Rec-4.5/5-4/5 Feb 2018 549 i i Olympus E-PL9
Olympus E-M10 III« »Rec80/1004.5/54/54.5/5 Aug 2017 649 i i Olympus E-M10 III
Olympus PEN-F« »-82/1004.5/54.5/55/5 Jan 2016 1,199 i i Olympus PEN-F
Olympus E-M10 II« »HiRec80/1005/55/55/5 Aug 2015 799- i Olympus E-M10 II
Panasonic LX100 II« »--4.5/5-4.5/5 Aug 2018 999 i i Panasonic LX100 II
Panasonic ZS200« »HiRec81/1004.5/5-4.5/5 Feb 2018 799 i i Panasonic ZS200
Panasonic G9« »HiRec85/1005/55/55/5 Nov 2017 1,699 i i Panasonic G9
Panasonic GX85« »HiRec82/1005/54.5/55/5 Apr 2016 799 i i Panasonic GX85
Panasonic GX8« »Rec82/1004.5/55/54.5/5 Jul 2015 1,199- i Panasonic GX8
Panasonic GX7« »Rec79/1005/54.5/55/5 Aug 2013 999- i Panasonic GX7

The above review scores should be interpreted 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. Hence, a score should always be seen in the context of the camera's market launch date and its price, and comparisons of ratings among very different cameras or across long time periods have little meaning. Also, 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? In case you would like to check on the differences and similarities of other camera models, just use the search menu below. An an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool. If the camera you are interested in is not available, kindly get in touch, and I will try to locate and add the respective data to the application.

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