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Canon 100D versus Panasonic GX9

The Canon EOS 100D (called Canon SL1 in some regions) and the Panasonic Lumix DC-GX9 are two digital cameras that were revealed to the public, respectively, in March 2013 and February 2018. The 100D is a DSLR, while the GX9 is a mirrorless interchangeable lens camera. The cameras are based on an APS-C (100D) and a Four Thirds (GX9) sensor. The Canon has a resolution of 17.9 megapixel, whereas the Panasonic provides 20.2 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: Canon 100D vs Panasonic GX9

The side-by-side display below illustrates the physical size and weight of the Canon 100D and the Panasonic GX9. Three consecutive perspectives from the front, the top, and the back are presented. All width, height and depth measures are rounded to the nearest millimeter. You can also use the toggle button 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 – the 100D – represents 100 percent across all the size and weight measures).

Compare Canon 100D vs Panasonic GX9
100D versus GX9 top view
100D and GX9 rear side
Body view (100D on the left)

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Panasonic GX9 is notably smaller (16 percent) than the Canon 100D. In terms of weight, the two cameras are very close. In this context, it is worth noting that neither the 100D nor the GX9 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. A larger imaging sensor will tend to go along with bigger and heavier lenses, although exceptions exist. You can find an overview of optics for the two cameras in the Canon EF Lens Catalog (100D) and the Micro Four Thirds Lens Catalog (GX9). Mirrorless cameras, such as the GX9, have moreover the advantage that they can use many lenses from other systems via adapters, as they have a relatively short flange to focal plane distance.

Concerning battery life, the 100D gets 380 shots out of its LP-E12 battery, while the GX9 can take 260 images on a single charge of its DMW-BLG10 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 Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
(CIPA)
Weather
Sealing
(y/n)
Camera
Launch
(year)
Launch
Price
(USD)
Street
Price
(amazon)
Used
Price
(ebay)
Canon 100D (⇒ rgt) 117 mm 91 mm 69 mm 407 g 380 no 2013 549discont. check
Panasonic GX9 (⇒ lft) 124 mm 72 mm 47 mm 407 g 260 no 2018 849 latest check
Canon 200D (⇒ lft | rgt) 122 mm 93 mm 70 mm 453 g 650 no 2017 549 latest check
Canon 1200D (⇒ lft | rgt) 130 mm 100 mm 78 mm 480 g 500 no 2014 449discont. check
Canon 700D (⇒ lft | rgt) 133 mm 100 mm 79 mm 580 g 440 no 2013 649discont. check
Canon 70D (⇒ lft | rgt) 139 mm 104 mm 79 mm 755 g 920 YES 2013 1,199discont. check
Canon G16 (⇒ lft | rgt) 109 mm 76 mm 40 mm 356 g 360 no 2013 549 latest check
Canon M (⇒ lft | rgt) 109 mm 66 mm 32 mm 298 g 230 no 2012 599discont. check
Canon 650D (⇒ lft | rgt) 133 mm 100 mm 79 mm 575 g 440 no 2012 849discont. check
Canon 600D (⇒ lft | rgt) 133 mm 100 mm 80 mm 570 g 440 no 2011 599discont. check
Canon 500D (⇒ lft | rgt) 129 mm 98 mm 62 mm 520 g 400 no 2009 799discont. check
Panasonic ZS200 (⇒ lft | rgt) 111 mm 65 mm 45 mm 340 g 370 no 2018 799 latest check
Panasonic GH5 (⇒ lft | rgt) 139 mm 98 mm 87 mm 725 g 410 YES 2017 1,999 latest check
Panasonic GX85 (⇒ lft | rgt) 122 mm 71 mm 44 mm 426 g 290 no 2016 799 latest check
Panasonic GX8 (⇒ lft | rgt) 133 mm 78 mm 63 mm 487 g 330 YES 2015 1,199discont. check
Panasonic G6 (⇒ lft | rgt) 122 mm 85 mm 71 mm 390 g 340 no 2013 599discont. check
Panasonic GX7 (⇒ lft | rgt) 123 mm 71 mm 55 mm 402 g 350 no 2013 999discont. check

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 100D was launched at a markedly lower price (by 35 percent) than the GX9, 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: Canon 100D vs Panasonic GX9

The size of the imaging sensor is a crucial determinant of image quality. A large sensor will tend to have larger individual pixels that provide better low-light sensitivity, wider dynamic range, and richer color depth than smaller pixel-units 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 associated with larger, more expensive camera bodies and lenses.

Of the two cameras under consideration, the Canon 100D features an APS-C sensor and the Panasonic GX9 a Four Thirds sensor. The sensor area in the GX9 is 32 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.6 and 2.0. The sensor in the 100D has a native 3:2 aspect ratio, while the one in the GX9 offers a 4:3 aspect.

Canon 100D and Panasonic GX9 sensor measures
Sensor size

Despite having a smaller sensor, the GX9 offers a higher resolution of 20.2 megapixel, compared with 17.9 MP of the 100D. This megapixel advantage comes at the cost of a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 3.34μm versus 4.31μm for the 100D). However, it should be noted that the GX9 is much more recent (by 4 years and 10 months) than the 100D, and its sensor will have benefitted from technological advances during this time that make it possible to gather light more efficiently. 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.

100D versus GX9 MP
Sensor resolution

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"). The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.

Sensor Characteristics
Camera Sensor
Class
Resolution
(Megapixel)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
Canon 100D (⇒ rgt) APS-C 17.9 5184 3456 1080/30p 21.8 11.3 843 63
Panasonic GX9 (⇒ lft) Four Thirds 20.2 5184 3888 4K/30p .. .. .. ..
Canon 200D (⇒ lft | rgt) APS-C 24.0 6000 4000 1080/60p 23.6 13.4 1041 79
Canon 1200D (⇒ lft | rgt) APS-C 17.9 5184 3456 1080/30p 21.9 11.3 724 63
Canon 700D (⇒ lft | rgt) APS-C 17.9 5184 3456 1080/30p 21.7 11.2 681 61
Canon 70D (⇒ lft | rgt) APS-C 20.0 5472 3648 1080/30p 22.5 11.6 926 68
Canon G16 (⇒ lft | rgt) 1/1.7 12.0 4000 3000 1080/60p 21.0 11.7 230 54
Canon M (⇒ lft | rgt) APS-C 17.9 5184 3456 1080/30p 22.1 11.2 827 65
Canon 650D (⇒ lft | rgt) APS-C 17.9 5184 3456 1080/30p 21.7 11.2 722 62
Canon 600D (⇒ lft | rgt) APS-C 17.9 5184 3456 1080/30p 22.1 11.5 793 65
Canon 500D (⇒ lft | rgt) APS-C 15.1 4752 3168 1080/20p 21.7 11.5 663 63
Panasonic ZS200 (⇒ lft | rgt) 1-inch 20.0 5472 3648 4K/30p .. .. .. ..
Panasonic GH5 (⇒ lft | rgt) Four Thirds 20.2 5184 3888 4K/60p 23.9 13.0 807 77
Panasonic GX85 (⇒ lft | rgt) Four Thirds 15.8 4592 3448 4K/30p 22.9 12.6 662 71
Panasonic GX8 (⇒ lft | rgt) Four Thirds 20.2 5184 3888 4K/30p 23.5 12.6 806 75
Panasonic G6 (⇒ lft | rgt) Four Thirds 15.9 4608 3456 1080/60p 21.3 11.5 639 61
Panasonic GX7 (⇒ lft | rgt) Four Thirds 15.8 4592 3448 1080/60p 22.6 12.2 718 70

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 better video resolution than the 100D. It can shoot movie footage at 4K/30p, while the Canon is limited to 1080/30p.

Feature comparison: Canon 100D vs Panasonic GX9

Apart from body and sensor, cameras can and do differ across a range of features. For example, the GX9 has an electronic viewfinder (2760k dots), while the 100D has an optical one. Both systems have their advantages, with the electronic viewfinder making it possible to project supplementary shooting information into the framing view, whereas the optical viewfinder offers lag-free viewing and a very clear framing image. The following table reports on some other key feature differences and similarities of the Canon 100D, the Panasonic GX9, and comparable cameras. If you need more detail on the specs, you can find comprehensive listings, for example, in the dpreview camera hub.

Core Features
Camera Viewfinder
(Type or
'000 dots)
Control
Panel
(Y/n)
LCD
Size
(inch)
LCD
Resolution
('000 dots)
LCD
Attach-
ment
Touch
Screen
(Y/n)
Shutter
speed
(1/sec)
Shutter
flaps
(1/sec))
Build-in
Flash
(GN)
Build-in
Image
Stab
Canon 100D (⇒ rgt) optical no 3.0 1040 fixed YES 4000 4.9 9.4 no
Panasonic GX9 (⇒ lft) 2760 no 3.0 1240 tilting YES 4000 9.0 6 YES
Canon 200D (⇒ lft | rgt) optical no 3.0 1040 swivel YES 4000 5.0 9.8 no
Canon 1200D (⇒ lft | rgt) optical no 3.0 460 fixed no 4000 3.0 9.2 no
Canon 700D (⇒ lft | rgt) optical no 3.0 1040 swivel YES 4000 5.0 13 no
Canon 70D (⇒ lft | rgt) optical YES 3.0 1040 swivel YES 8000 7.0 12 no
Canon G16 (⇒ lft | rgt) optical no 3.0 922 fixed no 4000 2.2 7 YES
Canon M (⇒ lft | rgt) no no 3.0 1040 fixed YES 4000 4.3 no no
Canon 650D (⇒ lft | rgt) optical no 3.0 1040 swivel YES 4000 5.0 YES no
Canon 600D (⇒ lft | rgt) optical no 3.0 1040 swivel no 4000 3.7 YES no
Canon 500D (⇒ lft | rgt) optical no 3.0 920 fixed no 4000 3.4 YES no
Panasonic ZS200 (⇒ lft | rgt) 2330 no 3.0 1240 fixed YES 2000 10.0 6.8 YES
Panasonic GH5 (⇒ lft | rgt) 3680 no 3.2 1620 swivel YES 8000 12.0 no YES
Panasonic GX85 (⇒ lft | rgt) 2765 no 3.0 1040 tilting YES 4000 8.0 6 YES
Panasonic GX8 (⇒ lft | rgt) 2360 no 3.0 1040 swivel YES 8000 10.0 no YES
Panasonic G6 (⇒ lft | rgt) 1440 no 3.0 1036 swivel YES 4000 7.0 10.5 no
Panasonic GX7 (⇒ lft | rgt) 2760 no 3.0 1040 tilting YES 8000 5.0 7 YES

The GX9 is a current model that online retailers, such as amazon, will have in stock. In contrast, the 100D has been discontinued (but it can be found pre-owned on eBay). As a replacement in the same line of cameras, the 100D was succeeded by the Canon 200D.

Review summary: Canon 100D vs Panasonic GX9

So what is the bottom line? Is the Canon 100D better than the Panasonic GX9 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 Canon EOS 100D:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • Longer lasting: Can take more shots (380 versus 260) on a single battery charge.
  • More affordable: Was introduced into a lower priced category (35 percent cheaper at launch).
  • More heavily discounted: Has been available for much longer (launched in March 2013).

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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).
  • More framing info: Has an electronic viewfinder that displays shooting data.
  • More detailed LCD: Has a higher resolution rear screen (1240k vs 1040k dots).
  • More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
  • Faster burst: Shoots at higher frequency (9 vs 4.9 flaps/sec) to capture the decisive moment.
  • More compact: Is smaller (124x72mm vs 117x91mm) and will fit more readily into a bag.
  • More legacy lens friendly: Can use many non-native lenses via adapters.
  • Sharper images: Has stabilization technology build-in to reduce the impact of hand-shake.
  • More modern: Reflects 4 years and 10 months of technical progress since the 100D launch.

If the count of individual advantages (bullet points above) is taken as a guide, the GX9 is the clear winner of the contest (10 : 5 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.

100D 05:10 GX9

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 handling experience and imaging performance when actually working with the 100D or the GX9. 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 adjacent table relays the overall verdicts of several of the most popular camera review sites. The detailed reviews can be accessed, respectively, on the websites of cameralabs.com, dpreview.com, ephotozine.com, imaging-resource.com, and photographyblog.com.

Review scores
Camera camera
labs
.com
dp
review
.com
ephoto
zine
.com
imaging
resource
.com
photography
blog
.com
Camera
Launch
(year)
Launch
Price
(USD)
Street
Price
(amazon)
Used
Price
(ebay)
Canon 100D (⇒ rgt) Rec 78/100 Gold 4/5 4/5 4/5 2013 549discont. check
Panasonic GX9 (⇒ lft) Rec .. 4.5/5 .. 4.5/5 2018 849 latest check
Canon 200D (⇒ lft | rgt) HiRec 78/100 Silver 4.5/5 4.5/5 4.5/5 2017 549 latest check
Canon 1200D (⇒ lft | rgt) 4/5 - 4/5 4/5 4.5/5 2014 449discont. check
Canon 700D (⇒ lft | rgt) - 76/100 Silver 4.5/5 4.5/5 4.5/5 2013 649discont. check
Canon 70D (⇒ lft | rgt) HiRec 83/100 Gold 4.5/5 4.5/5 5/5 2013 1,199discont. check
Canon G16 (⇒ lft | rgt) Rec - 4.5/5 4.5/5 4.5/5 2013 549 latest check
Canon M (⇒ lft | rgt) Rec - 4/5 3.5/5 4/5 2012 599discont. check
Canon 650D (⇒ lft | rgt) HiRec 77/100 Silver 4.5/5 4.5/5 4.5/5 2012 849discont. check
Canon 600D (⇒ lft | rgt) reviewed 77/100 Silver 4.5/5 5/5 4.5/5 2011 599discont. check
Canon 500D (⇒ lft | rgt) 88/100 HiRec 74/100 HiRec 4.5/5 5/5 4.5/5 2009 799discont. check
Panasonic ZS200 (⇒ lft | rgt) HiRec 81/100 Silver 4.5/5 .. 4.5/5 2018 799 latest check
Panasonic GH5 (⇒ lft | rgt) HiRec 85/100 Gold 4.5/5 5/5 5/5 2017 1,999 latest check
Panasonic GX85 (⇒ lft | rgt) HiRec 82/100 Silver 5/5 4.5/5 5/5 2016 799 latest check
Panasonic GX8 (⇒ lft | rgt) Rec 82/100 Silver 4.5/5 5/5 4.5/5 2015 1,199discont. check
Panasonic G6 (⇒ lft | rgt) HiRec - 5/5 - 4.5/5 2013 599discont. check
Panasonic GX7 (⇒ lft | rgt) Rec 79/100 Silver 5/5 4.5/5 5/5 2013 999discont. check

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, please contact me, and I will try to update the database with the necessary infos.

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