Canon SX420 vs Panasonic GX8
The Canon PowerShot SX420 IS and the Panasonic Lumix DMC-GX8 are two digital cameras that were revealed to the public, respectively, in January 2016 and July 2015. The SX420 is a fixed lens compact, while the GX8 is a mirrorless interchangeable lens camera. The cameras are based on a 1/2.3-inch (SX420) and a Four Thirds (GX8) sensor. The Canon has a resolution of 19.9 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 PowerShot SX420 IS 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.
The physical size and weight of the Canon SX420 and the Panasonic GX8 are illustrated in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive perspectives from the front, the top, and the back are available. All width, height and depth measures are rounded to the nearest millimeter.
The SX420 can be obtained in two different colors (black, red), while the GX8 is also available in two color-versions, but different ones (black, silver).
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Panasonic GX8 is considerably larger (45 percent) than the Canon SX420. It is noteworthy in this context that the GX8 is splash and dust-proof, while the SX420 does not feature any corresponding weather-sealing.
The above size and weight comparisons are to some extent incomplete and possibly misleading, as the SX420 has a lens built in, whereas the GX8 is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup. You can compare the optics available for the GX8 and their specifications in the Micro Four Thirds Lens Catalog.
The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. 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 SX420||104 mm||69 mm||85 mm||325 g||195||n||Jan 2016||299|
|2.||Panasonic GX8||133 mm||78 mm||63 mm||487 g||330||Y||Jul 2015||1,199|
|3.||Canon SX430||104 mm||69 mm||85 mm||323 g||195||n||Jan 2017||299|
|4.||Canon SX730||110 mm||64 mm||40 mm||300 g||250||n||Apr 2017||399|
|5.||Canon G7 X Mark II||106 mm||61 mm||42 mm||319 g||265||n||Feb 2016||699|
|6.||Canon SX620||97 mm||57 mm||28 mm||182 g||295||n||May 2016||279|
|7.||Canon SX720||110 mm||64 mm||36 mm||270 g||250||n||Feb 2016||379|
|8.||Canon G5 X||112 mm||76 mm||44 mm||353 g||210||n||Oct 2015||799|
|9.||Canon SX410||104 mm||69 mm||85 mm||325 g||185||n||Feb 2015||279|
|10.||Canon SX610||105 mm||61 mm||27 mm||191 g||270||n||Jan 2015||249|
|11.||Canon SX710||113 mm||66 mm||35 mm||269 g||230||n||Jan 2015||349|
|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 ZS70||112 mm||67 mm||41 mm||322 g||380||n||Apr 2017||449|
|17.||Panasonic GX7||123 mm||71 mm||55 mm||402 g||350||n||Aug 2013||999|
|Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.|
The price is, of course, an important factor in any camera decision. 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 SX420 was launched at a lower price than the GX8, despite having a lens built in. 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.
The imaging sensor is at the core of digital cameras and its size is one of the main determining factors 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 SX420 features a 1/2.3-inch sensor and the Panasonic GX8 a Four Thirds sensor. The sensor area in the GX8 is 704 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 5.6 and 2.0. Both cameras feature a native aspect ratio (sensor width to sensor height) of 4:3.
With 20.2MP, the GX8 offers a higher resolution than the SX420 (19.9MP), but the GX8 nevertheless has larger individual pixels (pixel pitch of 3.34μm versus 1.19μm for the SX420) due to its larger sensor. However, the SX420 is a somewhat more recent model (by 5 months) than the GX8, and its sensor might 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 SX420 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
The Canon PowerShot SX420 IS has a native sensitivity range from ISO 100 to ISO 1600. 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.
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. 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|
|5.||Canon G7 X Mark II||1-inch||20.0||5472||3648||1080/60p||21.8||11.9||260||62|
|8.||Canon G5 X||1-inch||20.0||5472||3648||1080/60p||21.8||11.9||227||61|
|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||23.2||13.0||1273||75|
|15.||Panasonic GX9||Four Thirds||20.2||5184||3888||4K/30p||23.1||12.8||1163||74|
|17.||Panasonic GX7||Four Thirds||15.8||4592||3448||1080/60p||22.6||12.2||718||70|
|Note: DXO values in italics represent estimates based on sensor size and age.|
Many modern cameras cannot only take still pictures, but also record videos. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, but the GX8 provides a better video resolution than the SX420. It can shoot movie footage at 4K/30p, while the Canon is limited to 720/25p.
Apart from body and sensor, cameras can and do differ across a variety of features. For example, the GX8 has an electronic viewfinder (2360k dots), which can be very helpful when shooting in bright sunlight. In contrast, the SX420 relies on live view and the rear LCD for framing. The table below summarizes some of the other core capabilities of the Canon SX420 and Panasonic GX8 in connection with corresponding information for a sample of similar cameras.
|1.||Canon SX420||none||n||3.0 / 230||fixed||n||1/4000s||0.5||Y||Y|
|2.||Panasonic GX8||2360||n||3.0 / 1040||swivel||Y||1/8000s||10.0||n||Y|
|3.||Canon SX430||none||n||3.0 / 230||fixed||n||1/4000s||0.5||Y||Y|
|4.||Canon SX730||none||n||3.0 / 922||tilting||n||1/3200s||5.9||Y||Y|
|5.||Canon G7 X Mark II||none||n||3.0 / 1040||tilting||Y||1/2000s||8.0||Y||Y|
|6.||Canon SX620||none||n||3.0 / 922||fixed||n||1/2000s||2.5||Y||Y|
|7.||Canon SX720||none||n||3.0 / 922||fixed||n||1/3200s||5.9||Y||Y|
|8.||Canon G5 X||2360||n||3.0 / 1040||swivel||Y||1/2000s||5.9||Y||Y|
|9.||Canon SX410||none||n||3.0 / 230||fixed||n||1/4000s||0.5||Y||Y|
|10.||Canon SX610||none||n||3.0 / 922||fixed||n||1/2000s||2.5||Y||Y|
|11.||Canon SX710||none||n||3.0 / 922||fixed||n||1/3200s||6.0||Y||Y|
|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 ZS70||1166||n||3.0 / 1040||tilting||Y||1/2000s||10.0||Y||Y|
|17.||Panasonic GX7||2760||n||3.0 / 1040||tilting||Y||1/8000s||5.0||Y||Y|
One difference between the cameras concerns the presence of an on-board flash. The SX420 has one, while the GX8 does not. While the built-in flash of the SX420 is not very powerful, it can at times be useful as a fill-in light.The GX8 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 SX420 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 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 SX420 and the GX8 write their files to SDXC cards. The GX8 supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the SX420 cannot take advantage of Ultra High Speed SD cards.
For some imaging applications, the extent to which a camera can communicate with its environment can be an important aspect in the camera decision process. The table below provides an overview of the connectivity of the Canon PowerShot SX420 IS 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 SX420||-||mono / mono||-||-||-||2.0||Y||Y||-|
|2.||Panasonic GX8||Y||stereo / mono||Y||-||micro||2.0||Y||Y||-|
|3.||Canon SX430||-||mono / mono||-||-||-||2.0||Y||Y||-|
|4.||Canon SX730||-||stereo / mono||-||-||micro||2.0||Y||Y||Y|
|5.||Canon G7 X Mark II||-||stereo / mono||-||-||micro||2.0||Y||Y||-|
|6.||Canon SX620||-||mono / mono||-||-||micro||2.0||Y||Y||-|
|7.||Canon SX720||-||stereo / mono||-||-||micro||2.0||Y||Y||-|
|8.||Canon G5 X||Y||stereo / mono||-||-||mini||2.0||Y||Y||-|
|9.||Canon SX410||-||stereo / mono||-||-||-||2.0||-||-||-|
|10.||Canon SX610||-||- / -||-||-||micro||2.0||Y||Y||-|
|11.||Canon SX710||-||stereo / mono||-||-||micro||2.0||Y||Y||-|
|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 ZS70||-||stereo / mono||-||-||micro||2.0||Y||-||-|
|17.||Panasonic GX7||Y||stereo / mono||-||-||mini||2.0||Y||Y||-|
It is notable that the GX8 has a microphone port, which can help to improve the quality of audio recordings by attaching an external microphone. The SX420 does not feature such a mic input.
Both the SX420 and the GX8 have been discontinued, but can regularly be found used on eBay. The GX8 was replaced by the Panasonic GX9, while the SX420 was followed by the Canon SX430. 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 how do things add up? Is there a clear favorite between the Canon SX420 and the Panasonic GX8? Which camera is better? The listing below highlights the relative strengths of the two models.
Advantages of the Canon PowerShot SX420 IS:
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- Ready to shoot: Has a lens built-in, whereas the GX8 requires a separate lens.
- More compact: Is smaller (104x69mm vs 133x78mm) and thus needs less room in the bag.
- Less heavy: Is lighter even though it comes with a built-in lens (unlike the GX8).
- Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
- More affordable: Was introduced at a lower price, despite coming with a built-in lens.
- More modern: Is somewhat more recent (announced 5 months after the GX8).
Reasons to prefer the Panasonic Lumix DMC-GX8:
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- Better image quality: Features bigger pixels on a larger sensor for higher quality imaging.
- Richer colors: The pixel size advantage translates into images with better, more accurate colors.
- More dynamic range: Larger pixels capture a wider spectrum of light and dark details.
- Better low-light sensitivity: Larger pixels means good image quality even under poor lighting.
- Better video: Provides higher definition movie capture (4K/30p vs 720/25p).
- Better sound: Can connect to an external microphone for higher quality sound recording.
- Easier framing: Has an electronic viewfinder for image composition and settings control.
- More detailed LCD: Has a higher resolution rear screen (1040k vs 230k dots).
- More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
- Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
- More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
- Faster burst: Shoots at higher frequency (10 vs 0.5 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 flexible: Takes interchangeable lenses and can thus be used with specialty optics.
- Longer lasting: Gets more shots (330 versus 195) out of a single battery charge.
- Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
- Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
- Faster buffer clearing: Has an SD card interface that supports the UHS-I standard.
- More heavily discounted: Has been on the market for longer (launched in July 2015).
If the number of relative strengths (bullet points above) is taken as a guide, the GX8 is the clear winner of the contest (22 : 7 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 wildlife photographer will view the differences between cameras in a way that diverges from the perspective of a family photog, and a person interested in architecture has distinct needs from a sports 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 SX420 and the Panasonic GX8 place the cameras among the top in their class? Find out in the latest Best Superzoom 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 SX420 or the GX8. 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 where reviews by experts come in. 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 SX420||..||..||..||..||..||3/5||Jan 2016||299|
|2.||Panasonic GX8||5/5||+||..||82/100||4.5/5||4.5/5||Jul 2015||1,199|
|3.||Canon SX430||..||..||..||..||3.5/5||3.5/5||Jan 2017||299|
|4.||Canon SX730||..||+||..||..||4/5||4/5||Apr 2017||399|
|5.||Canon G7 X Mark II||4.5/5||+ +||..||81/100||4.5/5||4.5/5||Feb 2016||699|
|6.||Canon SX620||..||..||..||..||..||4/5||May 2016||279|
|7.||Canon SX720||..||+||..||..||4/5||4.5/5||Feb 2016||379|
|8.||Canon G5 X||5/5||+ +||..||78/100||4.5/5||4.5/5||Oct 2015||799|
|9.||Canon SX410||..||o||..||..||..||..||Feb 2015||279|
|10.||Canon SX610||..||..||..||..||4/5||4/5||Jan 2015||249|
|11.||Canon SX710||..||+||..||..||4/5||3.5/5||Jan 2015||349|
|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 ZS70||..||+ +||..||..||4/5||4/5||Apr 2017||449|
|17.||Panasonic GX7||4/5||+||..||79/100||5/5||5/5||Aug 2013||999|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
Care should be taken when interpreting the review scores above, 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.
Other camera comparisons
Did this review help to inform your camera decision process? In case you are interested in seeing how other cameras pair up, just make your choice using the following search menu. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.
- Canon 50D vs Panasonic GX8
- Canon M50 vs Panasonic GX8
- Canon SX420 vs Fujifilm X-E2S
- Canon SX420 vs Nikon D3
- Canon SX420 vs Olympus E-M1
- Canon SX420 vs Panasonic S1R
- Canon SX420 vs Panasonic ZS80
- Canon SX420 vs Sony A7 II
- Leica TL2 vs Panasonic GX8
- Nikon 1 J5 vs Panasonic GX8
- Nikon P7800 vs Panasonic GX8
- Panasonic GX8 vs Ricoh WG-60
Specifications: Canon SX420 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 SX420||Panasonic GX8|
|Camera Type||Fixed lens compact camera||Mirrorless system camera|
|Camera Lens||24-1008mm f/3.5-6.6||Micro Four Thirds lenses|
|Launch Date||January 2016||July 2015|
|Launch Price||USD 299||USD 1,199|
|Sensor Specs||Canon SX420||Panasonic GX8|
|Sensor Format||1/2.3" Sensor||Four Thirds Sensor|
|Sensor Size||6.17 x 4.55 mm||17.3 x 13.0 mm|
|Sensor Area||28.0735 mm2||224.9 mm2|
|Sensor Diagonal||7.7 mm||21.6 mm|
|Sensor Resolution||19.9 Megapixels||20.2 Megapixels|
|Image Resolution||5152 x 3864 pixels||5184 x 3888 pixels|
|Pixel Pitch||1.19 μm||3.34 μm|
|Pixel Density||70.91 MP/cm2||8.96 MP/cm2|
|Moiré control||no AA filter||Anti-Alias filter|
|Movie Capability||720/25p Video||4K/30p Video|
|ISO Setting||100 - 1,600 ISO||200 - 25,600 ISO|
|ISO Boost||no Enhancement||100 - 25,600 ISO|
|Image Processor||DIGIC 4+||Venus|
|DXO Sensor Quality (score)||..||75|
|DXO Color Depth (bits)||..||23.5|
|DXO Dynamic Range (EV)||..||12.6|
|DXO Low Light (ISO)||..||806|
|Screen Specs||Canon SX420||Panasonic GX8|
|Viewfinder Type||no viewfinder||Electronic viewfinder|
|Viewfinder Field of View||100%|
|Viewfinder Resolution||2360k dots|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0inch||3.0inch|
|LCD Resolution||230k dots||1040k dots|
|LCD Attachment||Fixed screen||Swivel screen|
|Touch Input||no Touchscreen||Touchscreen|
|Shooting Specs||Canon SX420||Panasonic GX8|
|Focus System||Contrast-detect AF||Contrast-detect AF|
|Manual Focusing Aid||no Peaking Feature||Focus Peaking|
|Max Shutter Speed (mechanical)||1/4000s||1/8000s|
|Continuous Shooting||0.5 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-based stabilization||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||no||UHS-I|
|Connectivity Specs||Canon SX420||Panasonic GX8|
|External Flash||no Hotshoe||Hotshoe|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||no HDMI||micro HDMI|
|Microphone Port||no MIC socket||External MIC port|
|Wifi Support||Wifi built-in||Wifi built-in|
|Near-Field Communication||NFC built-in||NFC built-in|
|Body Specs||Canon SX420||Panasonic GX8|
|Environmental Sealing||not weather sealed||Weathersealed body|
|Battery Life (CIPA)||195 shots per charge||330 shots per charge|
104 x 69 x 85 mm
(4.1 x 2.7 x 3.3 in)
133 x 78 x 63 mm
(5.2 x 3.1 x 2.5 in)
|Camera Weight||325 g (11.5 oz)||487 g (17.2 oz)|
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