Canon 70D vs Panasonic GX8
The Canon EOS 70D and the Panasonic Lumix DMC-GX8 are two enthusiast cameras that were revealed to the public, respectively, in July 2013 and July 2015. The 70D is a DSLR, while the GX8 is a mirrorless interchangeable lens camera. The cameras are based on an APS-C (70D) and a Four Thirds (GX8) sensor. The Canon has a resolution of 20 megapixels, whereas the Panasonic provides 20.2 MP.
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 Canon EOS 70D and the Panasonic Lumix DMC-GX8? 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.
An illustration of the physical size and weight of the Canon 70D and the Panasonic GX8 is provided in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive views from the front, the top, and the rear side are shown. All width, height and depth measures are rounded to the nearest millimeter.
The GX8 can be obtained in two different colors (black, silver), while the 70D is only available in black.
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Panasonic GX8 is notably smaller (28 percent) than the Canon 70D. Moreover, the GX8 is substantially lighter (35 percent) than the 70D. In this context, it is worth noting that both cameras are splash and dust-proof and can, hence, be used in inclement weather conditions or harsh environments.
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 (70D) and the Micro Four Thirds Lens Catalog (GX8). Mirrorless cameras, such as the GX8, 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.
The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. If you want to switch the focus of the display and review another camera pair, you can move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons there.
|1.||Canon 70D||139 mm||104 mm||79 mm||755 g||920||Y||Jul 2013||1,199|
|2.||Panasonic GX8||133 mm||78 mm||63 mm||487 g||330||Y||Jul 2015||1,199|
|3.||Canon 80D||139 mm||105 mm||79 mm||730 g||960||Y||Feb 2016||1,199|
|4.||Canon G3 X||123 mm||77 mm||105 mm||733 g||300||Y||Jun 2015||999|
|5.||Canon 7D II||149 mm||112 mm||78 mm||910 g||670||Y||Sep 2014||1,799|
|6.||Canon T5||130 mm||100 mm||78 mm||480 g||500||n||Feb 2014||449|
|7.||Canon 6D||145 mm||111 mm||71 mm||770 g||1090||Y||Sep 2012||2,099|
|8.||Canon 60D||145 mm||106 mm||79 mm||755 g||1100||Y||Aug 2010||1,399|
|9.||Canon 7D||148 mm||111 mm||74 mm||860 g||800||Y||Sep 2009||1,699|
|10.||Canon 50D||146 mm||108 mm||74 mm||822 g||800||Y||Aug 2008||1,299|
|11.||Nikon D7100||136 mm||107 mm||76 mm||765 g||950||Y||Feb 2013||1,199|
|12.||Olympus E-M5 II||124 mm||85 mm||45 mm||469 g||310||Y||Feb 2015||1,099|
|13.||Olympus E-M1||130 mm||94 mm||63 mm||497 g||350||Y||Sep 2013||1,399|
|14.||Panasonic G95||130 mm||94 mm||77 mm||536 g||290||Y||Apr 2019||999|
|15.||Panasonic GX9||124 mm||72 mm||47 mm||407 g||260||n||Feb 2018||849|
|16.||Panasonic GX7||123 mm||71 mm||55 mm||402 g||350||n||Aug 2013||999|
|17.||Sony RX10||129 mm||88 mm||102 mm||813 g||420||Y||Oct 2013||1,299|
|Notes: 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 two cameras under review were launched at the same price and fall into the same 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.
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. 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 tend to be associated with larger, more expensive camera bodies and lenses.
Of the two cameras under consideration, the Canon 70D features an APS-C sensor and the Panasonic GX8 a Four Thirds sensor. The sensor area in the GX8 is 33 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 70D has a native 3:2 aspect ratio, while the one in the GX8 offers a 4:3 aspect.
Despite having a smaller sensor, the GX8 offers a slightly higher resolution of 20.2 megapixels, compared with 20 MP of the 70D. This megapixels 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 4.11μm for the 70D). However, it should be noted that the GX8 is much more recent (by 2 years) than the 70D, and its sensor will have benefitted from technological advances during this time that make it possible to gather light more efficiently.
The 70D has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.
The Canon EOS 70D 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-GX8 are ISO 200 to ISO 25600, with the possibility to increase the ISO range to 100-25600.
Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. 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 GX8 has a markedly higher DXO score than the 70D (overall score 7 points higher), which will translate into better image quality. The advantage is based on 1 bits higher color depth, 1 EV in additional dynamic range, and 0.2 stops of reduced low light sensitivity. The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.
|2.||Panasonic GX8||Four Thirds||20.2||5184||3888||4K/30p||23.5||12.6||806||75|
|4.||Canon G3 X||1-inch||20.0||5472||3648||1080/60p||21.4||12.3||521||63|
|5.||Canon 7D II||APS-C||20.0||5472||3648||1080/60p||22.4||11.8||1082||70|
|7.||Canon 6D||Full Frame||20.0||5472||3648||1080/30p||23.8||12.1||2340||82|
|12.||Olympus E-M5 II||Four Thirds||15.9||4608||3456||1080/60p||23.0||12.5||842||73|
|13.||Olympus E-M1||Four Thirds||15.9||4608||3456||1080/30p||23.0||12.7||757||73|
|14.||Panasonic G95||Four Thirds||20.2||5184||3888||4K/30p||..||..||..||..|
|15.||Panasonic GX9||Four Thirds||20.2||5184||3888||4K/30p||..||..||..||..|
|16.||Panasonic GX7||Four Thirds||15.8||4592||3448||1080/60p||22.6||12.2||718||70|
Many modern cameras cannot only take still pictures, but also record videos. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, but the GX8 provides a better video resolution than the 70D. It can shoot movie footage at 4K/30p, while the Canon is limited to 1080/30p.
Beyond body and sensor, cameras can and do differ across a range of features. For example, the GX8 has an electronic viewfinder (2360k dots), while the 70D 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 GX8 offers a wider field of view (100%) than the one in the 70D (98%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the GX8 has a higher magnification (0.77x vs 0.59x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The following table reports on some other key feature differences and similarities of the Canon 70D, the Panasonic GX8, and comparable cameras.
|1.||Canon 70D||optical||Y||3.0 / 1040||swivel||Y||1/8000s||7.0||Y||n|
|2.||Panasonic GX8||2360||n||3.0 / 1040||swivel||Y||1/8000s||10.0||n||Y|
|3.||Canon 80D||optical||Y||3.0 / 1040||swivel||Y||1/8000s||7.0||Y||n|
|4.||Canon G3 X||optional||n||3.2 / 1620||tilting||Y||1/2000s||5.9||Y||Y|
|5.||Canon 7D II||optical||Y||3.0 / 1040||fixed||n||1/8000s||10.0||Y||n|
|6.||Canon T5||optical||n||3.0 / 460||fixed||n||1/4000s||3.0||Y||n|
|7.||Canon 6D||optical||Y||3.0 / 1040||fixed||n||1/4000s||4.5||n||n|
|8.||Canon 60D||optical||Y||3.0 / 1040||swivel||n||1/8000s||5.3||Y||n|
|9.||Canon 7D||optical||Y||3.0 / 920||fixed||n||1/8000s||8.0||Y||n|
|10.||Canon 50D||optical||Y||3.0 / 920||fixed||n||1/8000s||6.3||Y||n|
|11.||Nikon D7100||optical||Y||3.2 / 1229||fixed||n||1/8000s||6.0||Y||n|
|12.||Olympus E-M5 II||2360||n||3.0 / 1037||swivel||Y||1/8000s||10.0||n||Y|
|13.||Olympus E-M1||2360||n||3.0 / 1037||tilting||Y||1/8000s||10.0||n||Y|
|14.||Panasonic G95||2360||n||3.0 / 1240||swivel||Y||1/4000s||9.0||Y||Y|
|15.||Panasonic GX9||2760||n||3.0 / 1240||tilting||Y||1/4000s||9.0||Y||Y|
|16.||Panasonic GX7||2760||n||3.0 / 1040||tilting||Y||1/8000s||5.0||Y||Y|
|17.||Sony RX10||1440||Y||3.0 / 1229||tilting||n||1/3200s||10.0||Y||Y|
One difference between the cameras concerns the presence of an on-board flash. The 70D has one, while the GX8 does not. While the built-in flash of the 70D is not very powerful, it can at times be useful as a fill-in light.Both cameras have an articulated rear screen that can be turned to be front-facing. This feature will be particularly appreciated by vloggers and photographers who are interested in taking selfies.
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 GX8 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 GX8 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 70D and the GX8 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.
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 70D and Panasonic Lumix DMC-GX8 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
Mic / Speaker
|1.||Canon 70D||Y||stereo / mono||Y||-||mini||2.0||Y||-||-|
|2.||Panasonic GX8||Y||stereo / mono||Y||-||micro||2.0||Y||Y||-|
|3.||Canon 80D||Y||stereo / mono||Y||Y||mini||2.0||Y||Y||-|
|4.||Canon G3 X||Y||stereo / mono||Y||Y||mini||2.0||Y||Y||-|
|5.||Canon 7D II||Y||stereo / mono||Y||Y||mini||3.0||-||-||-|
|6.||Canon T5||Y||mono / mono||-||-||mini||2.0||-||-||-|
|7.||Canon 6D||Y||mono / mono||Y||-||mini||2.0||Y||-||-|
|8.||Canon 60D||Y||mono / mono||Y||-||mini||2.0||-||-||-|
|9.||Canon 7D||Y||mono / -||Y||-||mini||2.0||-||-||-|
|10.||Canon 50D||Y||- / -||-||-||mini||2.0||-||-||-|
|11.||Nikon D7100||Y||stereo / mono||Y||Y||mini||2.0||-||-||-|
|12.||Olympus E-M5 II||Y||stereo / mono||Y||-||micro||2.0||Y||-||-|
|13.||Olympus E-M1||Y||stereo / mono||Y||-||micro||2.0||Y||-||-|
|14.||Panasonic G95||Y||stereo / mono||Y||Y||micro||2.0||Y||-||Y|
|15.||Panasonic GX9||Y||stereo / mono||-||-||micro||2.0||Y||-||Y|
|16.||Panasonic GX7||Y||stereo / mono||-||-||mini||2.0||Y||Y||-|
|17.||Sony RX10||Y||stereo / mono||Y||Y||micro||2.0||Y||Y||-|
Both the 70D and the GX8 have been discontinued, but can regularly be found used on eBay. The 70D was replaced by the Canon 80D, while the GX8 was followed by the Panasonic GX9. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Canon and Panasonic websites.
So what is the bottom line? Is the Canon 70D better than the Panasonic GX8 or vice versa? The listing below highlights the relative strengths of the two models.
Reasons to prefer the Canon EOS 70D:
- Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
- Brighter framing: Features an optical viewfinder for clear, lag-free composition.
- Easier setting verification: Features an LCD display on top to control shooting parameters.
- Longer lasting: Can take more shots (920 versus 330) on a single battery charge.
- Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
- More heavily discounted: Has been available for much longer (launched in July 2013).
Arguments in favor of the Panasonic Lumix DMC-GX8:
- Better image quality: Scores markedly higher (7 points) in the DXO overall evaluation.
- More dynamic range: Captures a broader range of light and dark details (1 EV of extra DR).
- Better video: Provides higher definition movie capture (4K/30p vs 1080/30p).
- 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 98%).
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.77x vs 0.59x).
- Faster burst: Shoots at higher frequency (10 vs 7 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 (133x78mm vs 139x104mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 268g or 35 percent) and is thus easier to take along.
- Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
- More legacy lens friendly: Can use many non-native lenses via adapters.
- Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
- More modern: Reflects 2 years of technical progress since the 70D launch.
If the count of relative strengths (bullet points above) is taken as a measure, the GX8 is the clear winner of the contest (15 : 6 points). However, the relative importance of the various individual camera aspects will vary according to personal preferences and needs, so that you might like to apply corresponding weights to the particular features before making a decision on a new camera. 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.
How about other alternatives? Do the specifications of the Canon 70D and the Panasonic GX8 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 comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it says little about, for example, the shooting experience and imaging performance of the 70D and the GX8 in practical situations. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased.
This is why expert reviews 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.||Canon 70D||5/5||+ +||..||83/100||4.5/5||5/5||Jul 2013||1,199|
|2.||Panasonic GX8||5/5||+||..||82/100||4.5/5||4.5/5||Jul 2015||1,199|
|3.||Canon 80D||4/5||+ +||4.5/5||84/100||4.5/5||4.5/5||Feb 2016||1,199|
|4.||Canon G3 X||3.5/5||+||..||..||4.5/5||4/5||Jun 2015||999|
|5.||Canon 7D II||4.5/5||+||3.5/5||84/100||4/5||4.5/5||Sep 2014||1,799|
|6.||Canon T5||3/5||+||..||..||4/5||4.5/5||Feb 2014||449|
|7.||Canon 6D||5/5||+ +||..||83/100||4.5/5||4.5/5||Sep 2012||2,099|
|8.||Canon 60D||5/5||+||..||79/100||4/5||4.5/5||Aug 2010||1,399|
|9.||Canon 7D||5/5||+ +||..||84/100||4.5/5||4.5/5||Sep 2009||1,699|
|10.||Canon 50D||..||+ +||..||+ +||4.5/5||4.5/5||Aug 2008||1,299|
|11.||Nikon D7100||5/5||+ +||..||85/100||4.5/5||4.5/5||Feb 2013||1,199|
|12.||Olympus E-M5 II||5/5||+ +||4.5/5||81/100||5/5||5/5||Feb 2015||1,099|
|13.||Olympus E-M1||5/5||+ +||..||84/100||4.5/5||4.5/5||Sep 2013||1,399|
|14.||Panasonic G95||4.5/5||+||4.5/5||83/100||4.5/5||4.5/5||Apr 2019||999|
|15.||Panasonic GX9||4/5||+||4/5||84/100||4.5/5||4.5/5||Feb 2018||849|
|16.||Panasonic GX7||4/5||+||..||79/100||5/5||5/5||Aug 2013||999|
|17.||Sony RX10||5/5||+||..||80/100||4.5/5||4.5/5||Oct 2013||1,299|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
Care should be taken when interpreting the review scores above, though. The ratings are only valid when referring to cameras in the same category and of the same age. 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. It should also be noted that some of the review sites have over time altered the way they render their verdicts.
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.
- Canon 1100D vs Panasonic GX8
- Canon 300D vs Canon 70D
- Canon 30D vs Canon 70D
- Canon 550D vs Panasonic GX8
- Canon 70D vs Nikon L840
- Canon 70D vs Nikon P900
- Canon 70D vs Olympus E-620
- Canon 70D vs Sony WX800
- Leica V-LUX 2 vs Panasonic GX8
- Panasonic FZ200 vs Panasonic GX8
- Panasonic G7 vs Panasonic GX8
- Panasonic GX8 vs Panasonic TZ100
Specifications: Canon 70D vs Panasonic GX8
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||Canon 70D||Panasonic GX8|
|Camera Type||Digital single lens reflex||Mirrorless system camera|
|Camera Lens||Canon EF mount lenses||Micro Four Thirds lenses|
|Launch Date||July 2013||July 2015|
|Launch Price||USD 1,199||USD 1,199|
|Sensor Specs||Canon 70D||Panasonic GX8|
|Sensor Format||APS-C Sensor||Four Thirds Sensor|
|Sensor Size||22.5 x 15.0 mm||17.3 x 13.0 mm|
|Sensor Area||337.5 mm2||224.9 mm2|
|Sensor Diagonal||27 mm||21.6 mm|
|Sensor Resolution||20 Megapixels||20.2 Megapixels|
|Image Resolution||5472 x 3648 pixels||5184 x 3888 pixels|
|Pixel Pitch||4.11 μm||3.34 μm|
|Pixel Density||5.91 MP/cm2||8.96 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||1080/30p Video||4K/30p Video|
|ISO Setting||100 - 12,800 ISO||200 - 25,600 ISO|
|ISO Boost||100 - 25,600 ISO||100 - 25,600 ISO|
|Image Processor||DIGIC 5+||Venus|
|DXO Sensor Quality (score)||68||75|
|DXO Color Depth (bits)||22.5||23.5|
|DXO Dynamic Range (EV)||11.6||12.6|
|DXO Low Light (ISO)||926||806|
|Screen Specs||Canon 70D||Panasonic GX8|
|Viewfinder Type||Optical viewfinder||Electronic viewfinder|
|Viewfinder Field of View||98%||100%|
|Viewfinder Resolution||2360k dots|
|Top-Level Screen||Control Panel||no Top Display|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0inch||3.0inch|
|LCD Resolution||1040k dots||1040k dots|
|LCD Attachment||Swivel screen||Swivel screen|
|Shooting Specs||Canon 70D||Panasonic GX8|
|Focus System||Phase-detect AF||Contrast-detect AF|
|Manual Focusing Aid||no Peaking Feature||Focus Peaking|
|Max Shutter Speed (mechanical)||1/8000s||1/8000s|
|Continuous Shooting||7 shutter flaps/s||10 shutter flaps/s|
|Electronic Shutter||no E-Shutter||up to 1/16000s|
|Time-Lapse Photography||no Intervalometer||Intervalometer built-in|
|Image Stabilization||Lens stabilization only||In-body stabilization|
|Fill Flash||Built-in Flash||no On-Board Flash|
|Storage Medium||SDXC cards||SDXC cards|
|Second Storage Option||Single card slot||Single card slot|
|UHS card support||UHS-I||UHS-I|
|Connectivity Specs||Canon 70D||Panasonic GX8|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||mini HDMI||micro HDMI|
|Microphone Port||External MIC port||External MIC port|
|Wifi Support||Wifi built-in||Wifi built-in|
|Near-Field Communication||no NFC||NFC built-in|
|Body Specs||Canon 70D||Panasonic GX8|
|Environmental Sealing||Weathersealed body||Weathersealed body|
|Battery Life (CIPA)||920 shots per charge||330 shots per charge|
139 x 104 x 79 mm
(5.5 x 4.1 x 3.1 in)
133 x 78 x 63 mm
(5.2 x 3.1 x 2.5 in)
|Camera Weight||755 g (26.6 oz)||487 g (17.2 oz)|
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