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Canon 100D vs Panasonic GH3

The Canon EOS 100D (called Canon SL1 in some regions) and the Panasonic Lumix DMC-GH3 are two digital cameras that were announced, respectively, in March 2013 and September 2012. The 100D is a DSLR, while the GH3 is a mirrorless interchangeable lens camera. The cameras are based on an APS-C (100D) and a Four Thirds (GH3) sensor. The Canon has a resolution of 17.9 megapixels, whereas the Panasonic provides 15.9 MP.

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

Headline Specifications
Canon 100D
versus
Panasonic GH3
Canon 100D   Panasonic GH3
Digital single lens reflex Mirrorless system camera
Canon EF mount lenses Micro Four Thirds lenses
17.9 MP – APS-C sensor 15.9 MP – Four Thirds sensor
1080/30p Video 1080/60p Video
ISO 100-12,800 (100 - 25,600) ISO 200-12,800 (125 - 25,600)
Optical viewfinder Electronic viewfinder (1746k dots)
3.0" LCD – 1040k dots 3.0" LCD – 614k dots
Fixed touchscreen Swivel touchscreen
4.9 shutter flaps per second 6 shutter flaps per second
not weather sealedWeathersealed body
380 shots per battery charge540 shots per battery charge
117 x 91 x 69 mm, 407 g 133 x 93 x 82 mm, 550 g
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Check 100D offers at
ebay.com
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Check GH3 offers at
ebay.com

Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS 100D and the Panasonic Lumix DMC-GH3? 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.

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Body comparison

The side-by-side display below illustrates the physical size and weight of the Canon 100D and the Panasonic GH3. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. All size dimensions are rounded to the nearest millimeter.

The 100D can be obtained in two different colors (black, white), while the GH3 is only available in black.

Size Canon 100D vs Panasonic GH3
Compare 100D versus GH3 top
Comparison 100D or GH3 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Panasonic GH3 is notably larger (16 percent) than the Canon 100D. Moreover, the GH3 is substantially heavier (35 percent) than the 100D. It is noteworthy in this context that the GH3 is splash and dust-proof, while the 100D does not feature any corresponding weather-sealing.

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 compare the optics available for the two cameras in the Canon EF Lens Catalog (100D) and the Micro Four Thirds Lens Catalog (GH3). Mirrorless cameras, such as the GH3, 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 Canon LP-E12 battery, while the GH3 can take 540 images on a single charge of its Panasonic DMW-BLF19 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, you can navigate to the CAM-parator app and make your selection from a broad list of cameras there.

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Body Specifications
  empty Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price
Street
Price
1.
 
Canon 100D 117 mm 91 mm 69 mm 407 g 380 i Mar 2013 US$ 549ebay.com
2.
 
Panasonic GH3 133 mm 93 mm 82 mm 550 g 540 i Sep 2012 US$ 1 299ebay.com
3.
 
Canon 200D 122 mm 93 mm 70 mm 453 g 650 i Jun 2017 US$ 549ebay.com
4.
 
Canon 600D 133 mm 100 mm 80 mm 570 g 440 i Feb 2011 US$ 599ebay.com
5.
 
Canon 650D 133 mm 100 mm 79 mm 575 g 440 i Jun 2012 US$ 849ebay.com
6.
 
Canon 700D 133 mm 100 mm 79 mm 580 g 440 i Mar 2013 US$ 649ebay.com
7.
 
Canon 1200D 130 mm 100 mm 78 mm 480 g 500 i Feb 2014 US$ 449ebay.com
8.
 
Canon 1300D 129 mm 101 mm 78 mm 485 g 500 i Mar 2016 US$ 449ebay.com
9.
 
Canon 4000D 129 mm 102 mm 77 mm 436 g 500 i Feb 2018 US$ 399 amazon.com
10.
 
Canon G16 109 mm 76 mm 40 mm 356 g 360 i Aug 2013 US$ 549ebay.com
11.
 
Canon M 109 mm 66 mm 32 mm 298 g 230 i Jul 2012 US$ 599ebay.com
12.
 
Olympus E-M1 130 mm 94 mm 63 mm 497 g 350 i Sep 2013 US$ 1 399ebay.com
13.
 
Olympus E-M5 II 124 mm 85 mm 45 mm 469 g 310 i Feb 2015 US$ 1 099ebay.com
14.
 
Panasonic G6 122 mm 85 mm 71 mm 390 g 340 i Apr 2013 US$ 599ebay.com
15.
 
Panasonic GH2 124 mm 90 mm 76 mm 442 g 330 i Sep 2010 US$ 899ebay.com
16.
 
Panasonic GH4 133 mm 93 mm 84 mm 560 g 500 i Feb 2014 US$ 1 499ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
  empty Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price
Street
Price
  empty Camera
Model

Any camera decision 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 100D was launched at a markedly lower price (by 58 percent) than the GH3, 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.

Sensor comparison

The size of the sensor inside a digital camera is one of the key determinants 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. Moreover, a large sensor camera will give the photographer more control over depth-of-field in the image and, thus, the ability to better 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 Canon 100D features an APS-C sensor and the Panasonic GH3 a Four Thirds sensor. The sensor area in the GH3 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 GH3 offers a 4:3 aspect.

Canon 100D and Panasonic GH3 sensor measures

With 17.9MP, the 100D offers a higher resolution than the GH3 (15.9MP), but the 100D nevertheless has larger individual pixels (pixel pitch of 4.31μm versus 3.76μm for the GH3) due to its larger sensor. Moreover, the 100D is a somewhat more recent model (by 6 months) than the GH3, and its sensor might have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixels.

The resolution advantage of the Canon 100D implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the 100D for good quality output (200 dots per inch) amounts to 25.9 x 17.3 inches or 65.8 x 43.9 cm, for very good quality (250 dpi) 20.7 x 13.8 inches or 52.7 x 35.1 cm, and for excellent quality (300 dpi) 17.3 x 11.5 inches or 43.9 x 29.3 cm. The corresponding values for the Panasonic GH3 are 23 x 17.3 inches or 58.5 x 43.9 cm for good quality, 18.4 x 13.8 inches or 46.8 x 35.1 cm for very good quality, and 15.4 x 11.5 inches or 39 x 29.3 cm for excellent quality prints.

The 100D has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

The Canon EOS 100D has a native sensitivity range from ISO 100 to ISO 12800, which can be extended to ISO 100-25600. The corresponding ISO settings for the Panasonic Lumix DMC-GH3 are ISO 200 to ISO 12800, with the possibility to increase the ISO range to 125-25600.

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.

100D versus GH3 MP

For many cameras, data on sensor performance has been reported by DXO Mark. 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 consideration, the GH3 has a markedly higher DXO score than the 100D (overall score 8 points higher), which will translate into better image quality. The advantage is based on 0.9 bits higher color depth, 1.1 EV in additional dynamic range, and 0.1 stops of reduced 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.

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Sensor Characteristics
  empty Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Canon 100D APS-C 17.9 5184 34561080/30p21.811.384363
2.
 
Panasonic GH3 Four Thirds 15.9 4608 34561080/60p22.712.481271
3.
 
Canon 200D APS-C 24.0 6000 40001080/60p23.613.4104179
4.
 
Canon 600D APS-C 17.9 5184 34561080/30p22.111.579365
5.
 
Canon 650D APS-C 17.9 5184 34561080/30p21.711.272262
6.
 
Canon 700D APS-C 17.9 5184 34561080/30p21.711.268161
7.
 
Canon 1200D APS-C 17.9 5184 34561080/30p21.911.372463
8.
 
Canon 1300D APS-C 17.9 5184 34561080/30p22.011.778166
9.
 
Canon 4000D APS-C 17.9 5184 34561080/30p21.911.469563
10.
 
Canon G16 1/1.7 12.0 4000 30001080/60p21.011.723054
11.
 
Canon M APS-C 17.9 5184 34561080/30p22.111.282765
12.
 
Olympus E-M1 Four Thirds 15.9 4608 34561080/30p23.012.775773
13.
 
Olympus E-M5 II Four Thirds 15.9 4608 34561080/60p23.012.584273
14.
 
Panasonic G6 Four Thirds 15.9 4608 34561080/60p21.311.563961
15.
 
Panasonic GH2 Four Thirds 15.9 4608 34561080/60i21.211.365560
16.
 
Panasonic GH4 Four Thirds 15.9 4608 34564K/30p23.212.879174
  empty Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
  empty Camera
Model

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 GH3 provides a faster frame rate than the 100D. It can shoot movie footage at 1080/60p, while the Canon is limited to 1080/30p.

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. For example, the GH3 has an electronic viewfinder (1746k 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 viewfinder in the GH3 offers a wider field of view (100%) than the one in the 100D (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the GH3 has a higher magnification (0.67x vs 0.54x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The table below summarizes some of the other core capabilities of the Canon 100D and Panasonic GH3 in connection with corresponding information for a sample of similar cameras.

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Core Features
  empty Camera
Model
Viewfinder
(Type or
000 dots)
Control
Panel
(yes/no)
LCD
Specifications
(inch/000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Max
Shutter
Speed *
Max
Shutter
Flaps *
Built-in
Flash
(yes/no)
Built-in
Image
Stab
1.
 
Canon 100Doptical i3.0 / 1040 fixed i 1/4000s 4.9/s i i
2.
 
Panasonic GH31746 i3.0 / 614 swivel i 1/4000s 6.0/s i i
3.
 
Canon 200Doptical i3.0 / 1040 swivel i 1/4000s 5.0/s i i
4.
 
Canon 600Doptical i3.0 / 1040 swivel i 1/4000s 3.7/s i i
5.
 
Canon 650Doptical i3.0 / 1040 swivel i 1/4000s 5.0/s i i
6.
 
Canon 700Doptical i3.0 / 1040 swivel i 1/4000s 5.0/s i i
7.
 
Canon 1200Doptical i3.0 / 460 fixed i 1/4000s 3.0/s i i
8.
 
Canon 1300Doptical i3.0 / 920 fixed i 1/4000s 3.0/s i i
9.
 
Canon 4000Doptical i2.7 / 230 fixed i 1/4000s 3.0/s i i
10.
 
Canon G16optical i3.0 / 922 fixed i 1/4000s 2.2/s i i
11.
 
Canon Mi i3.0 / 1040 fixed i 1/4000s 4.3/s i i
12.
 
Olympus E-M12360 i3.0 / 1037 tilting i 1/8000s 10.0/s i i
13.
 
Olympus E-M5 II2360 i3.0 / 1037 swivel i 1/8000s 10.0/s i i
14.
 
Panasonic G61440 i3.0 / 1036 swivel i 1/4000s 7.0/s i i
15.
 
Panasonic GH21534 i3.0 / 460 swivel i 1/4000s 3.0/s i i
16.
 
Panasonic GH42359 i3.0 / 1036 swivel i 1/8000s 12.0/s i i
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.
  empty Camera
Model
Viewfinder
(Type or
000 dots)
Control
Panel
(yes/no)
LCD
Specifications
(inch/000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Max
Shutter
Speed *
Max
Shutter
Flaps *
Built-in
Flash
(yes/no)
Built-in
Image
Stab
  empty Camera
Model
The GH3 has an articulated screen that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in taking selfies. In contrast, the 100D 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 GH3 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 GH3 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 100D and the GH3 write their files to SDXC cards. Both cameras can use UHS-I cards, which provide for Ultra High Speed data transfer of up to 104 MB/s.

Connectivity comparison

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 Canon EOS 100D and Panasonic Lumix DMC-GH3 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
  empty Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Canon 100Dimono / monoiimini2.0iii
2.
 
Panasonic GH3istereo / monoiimini2.0iii
3.
 
Canon 200Distereo / monoiimini2.0iii
4.
 
Canon 600Dimono / monoiimini2.0iii
5.
 
Canon 650Distereo / monoiimini2.0iii
6.
 
Canon 700Distereo / monoiimini2.0iii
7.
 
Canon 1200Dimono / monoiimini2.0iii
8.
 
Canon 1300Dimono / monoiimini2.0iii
9.
 
Canon 4000Dimono / monoiimini2.0iii
10.
 
Canon G16istereo / monoiimini2.0iii
11.
 
Canon Mistereo / monoiimini2.0iii
12.
 
Olympus E-M1istereo / monoiimicro2.0iii
13.
 
Olympus E-M5 IIistereo / monoiimicro2.0iii
14.
 
Panasonic G6istereo / monoiimini2.0iii
15.
 
Panasonic GH2istereo / monoiimini2.0iii
16.
 
Panasonic GH4istereo / monoiimicro2.0iii
  empty Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
  empty Camera
Model

It is notable that the GH3 offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the 100D does not provide wifi capability.

Studio photographers will appreciate that the Panasonic GH3 (unlike the 100D) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the 100D and the GH3 have been discontinued, but can regularly be found used on ebay. The GH3 was replaced by the Panasonic GH4, while the 100D was followed by the Canon 200D. Further information on the features and operation of the 100D and GH3 can be found, respectively, in the Canon 100D Manual (free pdf) or the online Panasonic GH3 Manual.

Review summary

So what is the bottom line? Is there a clear favorite between the Canon 100D and the Panasonic GH3? Which camera is better? Below is a summary of the relative strengths of each of the two contestants.

ilogo

Reasons to prefer the Canon EOS 100D:

  • More detail: Offers more megapixels (17.9 vs 15.9MP) with a 8% higher linear resolution.
  • Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • More detailed LCD: Has a higher resolution rear screen (1040k vs 614k dots).
  • More compact: Is smaller (117x91mm vs 133x93mm) and thus needs less room in the bag.
  • Less heavy: Is lighter (by 143g or 26 percent) and hence easier to carry around.
  • More affordable: Was introduced into a lower priced category (58 percent cheaper at launch).
  • More modern: Is somewhat more recent (announced 6 months after the GH3).

ilogo

Advantages of the Panasonic Lumix DMC-GH3:

  • Better image quality: Scores markedly higher (8 points) in the DXO overall evaluation.
  • 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 1080/30p).
  • Better sound control: Has a headphone port that enables audio monitoring while recording.
  • More framing info: Has an electronic viewfinder that displays shooting data.
  • More complete view: Has a viewfinder with a larger field of view (100% vs 95%).
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.67x vs 0.54x).
  • 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 burst: Shoots at higher frequency (6 vs 4.9 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 (540 versus 380) out of a single battery charge.
  • Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
  • More legacy lens friendly: Can use many non-native lenses via adapters.
  • Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
  • Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
  • More heavily discounted: Has been on the market for longer (launched in September 2012).

If the count of relative strengths (bullet points above) is taken as a measure, the GH3 is the clear winner of the contest (18 : 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. 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.

100D 08:18 GH3

How about other alternatives? Do the specifications of the Canon 100D and the Panasonic GH3 place the cameras among the top in their class? Find out in the latest Best DSLR Camera and Best Mirrorless Interchangeable Lens Camera listings 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 partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the 100D or the GH3. 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

This is where reviews by experts come in. The adjacent summary-table relays the overall verdicts of several of the most popular camera 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.

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Expert Camera Reviews
  empty  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price
Street
Price
1.
 
Canon 100D4/5+..78/1004/54/5 Mar 2013 US$ 549ebay.com
2.
 
Panasonic GH35/5+ +..79/1004.5/54.5/5 Sep 2012 US$ 1 299ebay.com
3.
 
Canon 200D4/5+ +4/578/1004.5/54.5/5 Jun 2017 US$ 549ebay.com
4.
 
Canon 600D3/5o..77/1004.5/54.5/5 Feb 2011 US$ 599ebay.com
5.
 
Canon 650D4/5+ +..77/1004.5/54.5/5 Jun 2012 US$ 849ebay.com
6.
 
Canon 700D......76/1004.5/54.5/5 Mar 2013 US$ 649ebay.com
7.
 
Canon 1200D3/5+....4/54.5/5 Feb 2014 US$ 449ebay.com
8.
 
Canon 1300D4/5o4/573/1004/54/5 Mar 2016 US$ 449ebay.com
9.
 
Canon 4000D2.5/5o3/5..3.5/53.5/5 Feb 2018 US$ 399 amazon.com
10.
 
Canon G164/5+....4.5/54.5/5 Aug 2013 US$ 549ebay.com
11.
 
Canon M3/5+....4/54/5 Jul 2012 US$ 599ebay.com
12.
 
Olympus E-M15/5+ +..84/1004.5/54.5/5 Sep 2013 US$ 1 399ebay.com
13.
 
Olympus E-M5 II5/5+ +4.5/581/1005/55/5 Feb 2015 US$ 1 099ebay.com
14.
 
Panasonic G64/5+ +....5/54.5/5 Apr 2013 US$ 599ebay.com
15.
 
Panasonic GH25/5+ +..79/1004.5/55/5 Sep 2010 US$ 899ebay.com
16.
 
Panasonic GH45/5+ +..85/1005/55/5 Feb 2014 US$ 1 499ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.
  empty  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price
Street
Price
  empty  Camera 
 Model 

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 comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

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Check 100D offers at
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Check GH3 offers at
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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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  • Canon R5 Mark II
  • Canon R5 C
  • Canon R6
  • Canon R6 Mark II
  • Canon R7
  • Canon R8
  • Canon R10
  • Canon R50
  • Canon R50 V
  • Canon R100
  • Canon RP
  • Canon S120
  • Canon SL1
  • Canon SL2
  • Canon SL3
  • Canon SX1
  • Canon SX10
  • Canon SX20
  • Canon SX30
  • Canon SX40
  • Canon SX50
  • Canon SX60
  • Canon SX70
  • Canon SX400
  • Canon SX410
  • Canon SX420
  • Canon SX430
  • Canon SX500
  • Canon SX510
  • Canon SX520
  • Canon SX530
  • Canon SX540
  • Canon SX600
  • Canon SX610
  • Canon SX620
  • Canon SX700
  • Canon SX710
  • Canon SX720
  • Canon SX730
  • Canon SX740
  • Canon Rebel
  • Canon T1i
  • Canon T2i
  • Canon T3
  • Canon T3i
  • Canon T4i
  • Canon T5
  • Canon T5i
  • Canon T6
  • Canon T6i
  • Canon T6s
  • Canon T7
  • Canon T7i
  • Canon T8i
  • Canon T100
  • Canon V1
  • Canon XC10
  • Canon XS
  • Canon XSi
  • Canon XT
  • Canon XTi
  • Contax N Digital
  • Epson R-D1
  • Fujifilm GFX 50R
  • Fujifilm GFX 50S
  • Fujifilm GFX 50S II
  • Fujifilm GFX 100
  • Fujifilm GFX 100 II
  • Fujifilm GFX 100RF
  • Fujifilm GFX 100S
  • Fujifilm GFX 100S II
  • Fujifilm X-A1
  • Fujifilm X-A2
  • Fujifilm X-A3
  • Fujifilm X-A5
  • Fujifilm X-A7
  • Fujifilm X-A10
  • Fujifilm X-E1
  • Fujifilm X-E2
  • Fujifilm X-E2S
  • Fujifilm X-E3
  • Fujifilm X-E4
  • Fujifilm X-E5
  • Fujifilm X-H1
  • Fujifilm X-H2
  • Fujifilm X-H2S
  • Fujifilm X-M1
  • Fujifilm X-M5
  • Fujifilm X-Pro1
  • Fujifilm X-Pro2
  • Fujifilm X-Pro3
  • Fujifilm X-S10
  • Fujifilm X-S20
  • Fujifilm X-T1
  • Fujifilm X-T2
  • Fujifilm X-T3
  • Fujifilm X-T4
  • Fujifilm X-T5
  • Fujifilm X-T10
  • Fujifilm X-T20
  • Fujifilm X-T30
  • Fujifilm X-T30 II
  • Fujifilm X-T50
  • Fujifilm X-T100
  • Fujifilm X-T200
  • Fujifilm X10
  • Fujifilm X20
  • Fujifilm X30
  • Fujifilm X70
  • Fujifilm X100
  • Fujifilm X100S
  • Fujifilm X100T
  • Fujifilm X100F
  • Fujifilm X100V
  • Fujifilm X100VI
  • Fujifilm XF10
  • Fujifilm XQ1
  • Fujifilm XQ2
  • Fujifilm XP120
  • Fujifilm XP130
  • Fujifilm XP140
  • Hasselblad X1D
  • Hasselblad X1D II
  • Hasselblad X2D 100C
  • Kodak AZ901
  • Kodak S-1
  • Leica C-LUX
  • Leica CL
  • Leica D-LUX Typ 109
  • Leica D-LUX 5
  • Leica D-LUX 6
  • Leica D-LUX 7
  • Leica D-LUX 8
  • Leica Digilux 3
  • Leica M Typ 240
  • Leica M-E Typ 240
  • Leica M Typ 262
  • Leica M8
  • Leica M9
  • Leica M10
  • Leica M10-P
  • Leica M10-R
  • Leica M11
  • Leica Q Typ 116
  • Leica Q2
  • Leica Q3
  • Leica S1
  • Leica S2
  • Leica S3
  • Leica S Typ 006
  • Leica S-E Typ 006
  • Leica S Typ 007
  • Leica SL
  • Leica SL2
  • Leica SL2-S
  • Leica SL3
  • Leica SL3-S
  • Leica T
  • Leica TL
  • Leica TL2
  • Leica V-LUX 1
  • Leica V-LUX 2
  • Leica V-LUX 3
  • Leica V-LUX 4
  • Leica V-LUX Typ 114
  • Leica V-LUX 5
  • Leica X1
  • Leica X2
  • Leica X Vario
  • Leica X Typ 113
  • Leica X-U Typ 113
  • Leitz Ur-Leica
  • Nikon 1 J4
  • Nikon 1 J5
  • Nikon 1 V1
  • Nikon 1 V2
  • Nikon 1 V3
  • Nikon Coolpix A
  • Nikon A1000
  • Nikon B500
  • Nikon B600
  • Nikon B700
  • Nikon D1
  • Nikon D1H
  • Nikon D1X
  • Nikon D2H
  • Nikon D2X
  • Nikon D2Xs
  • Nikon D3
  • Nikon D3S
  • Nikon D3X
  • Nikon D4
  • Nikon D4S
  • Nikon D5
  • Nikon D6
  • Nikon D40
  • Nikon D40X
  • Nikon D50
  • Nikon D60
  • Nikon D70
  • Nikon D70s
  • Nikon D80
  • Nikon D90
  • Nikon D100
  • Nikon D200
  • Nikon D300
  • Nikon D300S
  • Nikon D500
  • Nikon D600
  • Nikon D610
  • Nikon D700
  • Nikon D750
  • Nikon D780
  • Nikon D800
  • Nikon D800E
  • Nikon D810
  • Nikon D850
  • Nikon D3000
  • Nikon D3100
  • Nikon D3200
  • Nikon D3300
  • Nikon D3400
  • Nikon D3500
  • Nikon D5000
  • Nikon D5100
  • Nikon D5200
  • Nikon D5300
  • Nikon D5500
  • Nikon D5600
  • Nikon D7000
  • Nikon D7100
  • Nikon D7200
  • Nikon D7500
  • Nikon Df
  • Nikon L840
  • Nikon P900
  • Nikon P950
  • Nikon P1000
  • Nikon P1100
  • Nikon P7800
  • Nikon W150
  • Nikon W300
  • Nikon Z5
  • Nikon Z5 II
  • Nikon Z6
  • Nikon Z6 II
  • Nikon Z6 III
  • Nikon Z7
  • Nikon Z7 II
  • Nikon Z8
  • Nikon Z9
  • Nikon Z30
  • Nikon Z50
  • Nikon Z50 II
  • Nikon Zf
  • Nikon Z fc
  • Olympus E-1
  • Olympus E-3
  • Olympus E-5
  • Olympus E-30
  • Olympus E-300
  • Olympus E-330
  • Olympus E-400
  • Olympus E-410
  • Olympus E-420
  • Olympus E-450
  • Olympus E-500
  • Olympus E-510
  • Olympus E-520
  • Olympus E-600
  • Olympus E-620
  • Olympus E-M1
  • Olympus E-M1 II
  • Olympus E-M1 III
  • Olympus E-M1X
  • Olympus E-M5
  • Olympus E-M5 II
  • Olympus E-M5 III
  • Olympus E-M10
  • Olympus E-M10 II
  • Olympus E-M10 III
  • Olympus E-M10 IV
  • Olympus E-P1
  • Olympus E-P2
  • Olympus E-P3
  • Olympus E-P5
  • Olympus E-P7
  • Olympus E-PL1
  • Olympus E-PL2
  • Olympus E-PL3
  • Olympus E-PL5
  • Olympus E-PL6
  • Olympus E-PL7
  • Olympus E-PL8
  • Olympus E-PL9
  • Olympus E-PL10
  • Olympus E-PM1
  • Olympus E-PM2
  • Olympus PEN-F
  • Olympus Stylus 1
  • Olympus Stylus 1s
  • Olympus TG-4
  • Olympus TG-5
  • Olympus TG-6
  • Olympus XZ-1
  • Olympus XZ-2
  • OM System OM-1
  • OM System OM-1 II
  • OM System OM-3
  • OM System OM-5
  • OM System OM-5 II
  • OM System TG-7
  • Panasonic FZ80
  • Panasonic FZ80D
  • Panasonic FZ100
  • Panasonic FZ150
  • Panasonic FZ200
  • Panasonic FZ300
  • Panasonic FZ1000
  • Panasonic FZ1000 II
  • Panasonic FZ2500
  • Panasonic G1
  • Panasonic G2
  • Panasonic G3
  • Panasonic G5
  • Panasonic G6
  • Panasonic G7
  • Panasonic G9
  • Panasonic G9 II
  • Panasonic G10
  • Panasonic G85
  • Panasonic G97
  • Panasonic G95
  • Panasonic G100
  • Panasonic GF1
  • Panasonic GF2
  • Panasonic GF3
  • Panasonic GF5
  • Panasonic GF6
  • Panasonic GF7
  • Panasonic GH1
  • Panasonic GH2
  • Panasonic GH3
  • Panasonic GH4
  • Panasonic GH5
  • Panasonic GH5 II
  • Panasonic GH5s
  • Panasonic GH6
  • Panasonic GH7
  • Panasonic GM1
  • Panasonic GM5
  • Panasonic GX1
  • Panasonic GX7
  • Panasonic GX8
  • Panasonic GX9
  • Panasonic GX85
  • Panasonic GX850
  • Panasonic L1
  • Panasonic L10
  • Panasonic LF1
  • Panasonic LX5
  • Panasonic LX7
  • Panasonic LX10
  • Panasonic LX100
  • Panasonic LX100 II
  • Panasonic S1
  • Panasonic S1 II
  • Panasonic S1H
  • Panasonic S1R
  • Panasonic S1R II
  • Panasonic S5
  • Panasonic S5 II
  • Panasonic S9
  • Panasonic TS7
  • Panasonic ZS70
  • Panasonic ZS80
  • Panasonic ZS100
  • Panasonic ZS200
  • Pentax 645D
  • Pentax 645Z
  • Pentax K-1
  • Pentax K-1 II
  • Pentax K-3
  • Pentax K-3 II
  • Pentax K-3 III
  • Pentax K-5
  • Pentax K-5 II
  • Pentax K-30
  • Pentax K-50
  • Pentax K-70
  • Pentax K-500
  • Pentax KP
  • Pentax K-S1
  • Pentax K-S2
  • Pentax MX-1
  • Pentax Q
  • Pentax WG-8
  • Pentax WG-90
  • Pentax WG-1000
  • Ricoh GR
  • Ricoh GR II
  • Ricoh GR III
  • Ricoh GR IIIx
  • Ricoh WG-6
  • Ricoh WG-60
  • Samsung NX1
  • Samsung NX30
  • Samsung NX500
  • Sigma fp
  • Sigma fp L
  • Sony A1
  • Sony A1 II
  • Sony A7
  • Sony A7 II
  • Sony A7 III
  • Sony A7 IV
  • Sony A7C
  • Sony A7C II
  • Sony A7C R
  • Sony A7R
  • Sony A7R II
  • Sony A7R III
  • Sony A7R IIIA
  • Sony A7R IV
  • Sony A7R IVA
  • Sony A7R V
  • Sony A7S
  • Sony A7S II
  • Sony A7S III
  • Sony A9
  • Sony A9 II
  • Sony A9 III
  • Sony A58
  • Sony A68
  • Sony A77
  • Sony A77 II
  • Sony A99
  • Sony A99 II
  • Sony A850
  • Sony A900
  • Sony A3000
  • Sony A5000
  • Sony A5100
  • Sony A6000
  • Sony A6100
  • Sony A6300
  • Sony A6400
  • Sony A6500
  • Sony A6600
  • Sony A6700
  • Sony H200
  • Sony H300
  • Sony H400
  • Sony HX80
  • Sony HX90V
  • Sony HX95
  • Sony HX99
  • Sony HX350
  • Sony HX400V
  • Sony NEX-3
  • Sony NEX-3N
  • Sony NEX-5
  • Sony NEX-5N
  • Sony NEX-5R
  • Sony NEX-5T
  • Sony NEX-6
  • Sony NEX-7
  • Sony NEX-C3
  • Sony NEX-F3
  • Sony RX0
  • Sony RX0 II
  • Sony RX1
  • Sony RX1R
  • Sony RX1R II
  • Sony RX1R III
  • Sony RX10
  • Sony RX10 II
  • Sony RX10 III
  • Sony RX10 IV
  • Sony RX100
  • Sony RX100 II
  • Sony RX100 III
  • Sony RX100 IV
  • Sony RX100 V
  • Sony RX100 VI
  • Sony RX100 VII
  • Sony WX800
  • Sony ZV-1
  • Sony ZV-1 II
  • Sony ZV-1F
  • Sony ZV-E1
  • Sony ZV-E10
  • Sony ZV-E10 II
  • YI M1
  • Zeiss ZX1
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Specifications: Canon 100D vs Panasonic GH3

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 Canon 100D Panasonic GH3
Camera Type Digital single lens reflex Mirrorless system camera
Camera Lens Canon EF mount lenses Micro Four Thirds lenses
Launch Date March 2013 September 2012
Launch Price USD 549 USD 1,299
Sensor Specs Canon 100D Panasonic GH3
Sensor Technology CMOS CMOS
Sensor Format APS-C Sensor Four Thirds Sensor
Sensor Size 22.3 x 14.9 mm 17.3 x 13.0 mm
Sensor Area 332.27 mm2 224.9 mm2
Sensor Diagonal 26.8 mm 21.6 mm
Crop Factor 1.6x 2.0x
Sensor Resolution 17.9 Megapixels 15.9 Megapixels
Image Resolution 5184 x 3456 pixels 4608 x 3456 pixels
Pixel Pitch 4.31 μm 3.76 μm
Pixel Density 5.39 MP/cm2 7.08 MP/cm2
Moiré control Anti-Alias filter Anti-Alias filter
Movie Capability 1080/30p Video 1080/60p Video
ISO Setting 100 - 12,800 ISO 200 - 12,800 ISO
ISO Boost 100 - 25,600 ISO 125 - 25,600 ISO
Image Processor DIGIC 5 Venus VII FHD
DXO Sensor Quality (score) 63 71
DXO Color Depth (bits) 21.8 22.7
DXO Dynamic Range (EV) 11.3 12.4
DXO Low Light (ISO) 843 812
Screen Specs Canon 100D Panasonic GH3
Viewfinder Type Optical viewfinder Electronic viewfinder
Viewfinder Field of View 95% 100%
Viewfinder Magnification 0.54x 0.67x
Viewfinder Resolution 1746k dots
LCD Framing Live View Live View
Rear LCD Size 3.0inch 3.0inch
LCD Resolution 1040k dots 614k dots
LCD Attachment Fixed screen Swivel screen
Touch Input Touchscreen Touchscreen
Shooting Specs Canon 100D Panasonic GH3
Focus System Phase-detect AF Contrast-detect AF
Continuous Shooting 4.9 shutter flaps/s 6 shutter flaps/s
Electronic Shutterno E-ShutterYES
Time-Lapse Photographyno IntervalometerIntervalometer built-in
Fill Flash Built-in Flash Built-in Flash
Storage Medium SDXC cards SDXC cards
Single or Dual Card Slots Single card slot Single card slot
UHS card support UHS-I UHS-I
Connectivity Specs Canon 100D Panasonic GH3
External Flash Hotshoe Hotshoe
Studio Flash no PC Sync PC Sync socket
USB Connector USB 2.0 USB 2.0
HDMI Port mini HDMI mini HDMI
Microphone Port External MIC port External MIC port
Headphone Socket no Headphone port Headphone port
Wifi Support no Wifi Wifi built-in
Body Specs Canon 100D Panasonic GH3
Environmental Sealingnot weather sealedWeathersealed body
Battery Type Canon LP-E12 Panasonic DMW-BLF19
Battery Life (CIPA)380 shots per charge540 shots per charge
Body Dimensions 117 x 91 x 69 mm
(4.6 x 3.6 x 2.7 in)
133 x 93 x 82 mm
(5.2 x 3.7 x 3.2 in)
Camera Weight 407 g (14.4 oz) 550 g (19.4 oz)
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