Canon SX420 vs Olympus E-PM1
The Canon PowerShot SX420 IS and the Olympus PEN E-PM1 are two digital cameras that were revealed to the public, respectively, in January 2016 and June 2011. The SX420 is a fixed lens compact, while the E-PM1 is a mirrorless interchangeable lens camera. The cameras are based on a 1/2.3-inch (SX420) and a Four Thirds (E-PM1) sensor. The Canon has a resolution of 19.9 megapixels, whereas the Olympus provides 12.2 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 Olympus PEN E-PM1? 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 Olympus E-PM1 are illustrated 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 SX420 can be obtained in two different colors (black, red), while the E-PM1 is available in six color-versions (black, silver, brown, pink, purple, white).
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Olympus E-PM1 is somewhat smaller (2 percent) than the Canon SX420. In this context, it is worth noting that neither the SX420 nor the E-PM1 are weather-sealed.
The above size and weight comparisons are to some extent incomplete and possibly misleading, as the SX420 has a lens built in, whereas the E-PM1 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 E-PM1 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. In case you want to display and compare another camera duo, you can use the CAM-parator app to select your camera combination among a large number of options.
|1.||Canon SX420||104 mm||69 mm||85 mm||325 g||195||n||Jan 2016||299|
|2.||Olympus E-PM1||110 mm||64 mm||34 mm||265 g||330||n||Jun 2011||499|
|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-PM2||110 mm||64 mm||34 mm||269 g||360||n||Sep 2012||499|
|13.||Olympus E-PL2||114 mm||72 mm||42 mm||362 g||280||n||Jan 2011||599|
|14.||Olympus E-PL3||110 mm||64 mm||37 mm||313 g||300||n||Jun 2011||599|
|15.||Olympus E-PL1||115 mm||72 mm||42 mm||334 g||290||n||Feb 2010||599|
|16.||Panasonic ZS70||112 mm||67 mm||41 mm||322 g||380||n||Apr 2017||449|
|17.||Panasonic G2||124 mm||84 mm||74 mm||428 g||360||n||Mar 2010||599|
|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 E-PM1, despite having a lens built in. Normally, street prices remain initially close to the MSRP, but after a couple of months, the first discounts appear. Later in the product cycle and, in particular, when the replacement model is about to appear, further discounting and stock clearance sales often push the camera price considerably down. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.
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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.
Of the two cameras under consideration, the Canon SX420 features a 1/2.3-inch sensor and the Olympus E-PM1 a Four Thirds sensor. The sensor area in the E-PM1 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.
Despite having a smaller sensor, the Canon SX420 offers a higher resolution of 19.9 megapixels, compared with 12.2 MP of the Olympus E-PM1. 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 1.19μm versus 4.29μm for the E-PM1). However, it should be noted that the SX420 is much more recent (by 4 years and 6 months) than the E-PM1, 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 SX420 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
The resolution advantage of the Canon SX420 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the SX420 for good quality output (200 dots per inch) amounts to 25.8 x 19.3 inches or 65.4 x 49.1 cm, for very good quality (250 dpi) 20.6 x 15.5 inches or 52.3 x 39.3 cm, and for excellent quality (300 dpi) 17.2 x 12.9 inches or 43.6 x 32.7 cm. The corresponding values for the Olympus E-PM1 are 20.2 x 15.1 inches or 51.2 x 38.4 cm for good quality, 16.1 x 12.1 inches or 41 x 30.7 cm for very good quality, and 13.4 x 10.1 inches or 34.1 x 25.6 cm for excellent quality prints.
The Canon PowerShot SX420 IS has a native sensitivity range from ISO 100 to ISO 1600. The corresponding ISO settings for the Olympus PEN E-PM1 are ISO 100 to ISO 12800 (no boost).
For many cameras, data on sensor performance has been reported by DXO Mark. 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"). The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.
|2.||Olympus E-PM1||Four Thirds||12.2||4032||3024||1080/60i||21.0||10.3||499||52|
|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-PM2||Four Thirds||15.9||4608||3456||1080/30p||22.7||12.2||932||72|
|13.||Olympus E-PL2||Four Thirds||12.2||4032||3024||720/30p||21.4||10.2||573||55|
|14.||Olympus E-PL3||Four Thirds||12.2||4032||3024||1080/60i||20.9||10.3||499||52|
|15.||Olympus E-PL1||Four Thirds||12.2||4032||3024||720/30p||21.5||10.1||487||54|
|17.||Panasonic G2||Four Thirds||12.0||4000||3000||720/30p||21.2||10.3||493||53|
|Note: DXO values in italics represent estimates based on sensor size and age.|
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 E-PM1 provides a better video resolution than the SX420. It can shoot movie footage at 1080/60i, while the Canon is limited to 720/25p.
Apart from body and sensor, cameras can and do differ across a variety of features. The SX420 and the E-PM1 are similar in the sense that neither of the two has a viewfinder. The images are, thus, framed using live view on the rear LCD. That said, the E-PM1 can be equipped with an optional viewfinder – the VF-2. The table below summarizes some of the other core capabilities of the Canon SX420 and Olympus E-PM1 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.||Olympus E-PM1||optional||n||3.0 / 460||fixed||n||1/4000s||5.5||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-PM2||optional||n||3.0 / 460||fixed||Y||1/4000s||8.0||n||Y|
|13.||Olympus E-PL2||optional||n||3.0 / 460||fixed||n||1/4000s||3.0||Y||Y|
|14.||Olympus E-PL3||optional||n||3.0 / 460||tilting||n||1/4000s||5.5||n||Y|
|15.||Olympus E-PL1||optional||n||2.7 / 230||fixed||n||1/2000s||3.0||Y||Y|
|16.||Panasonic ZS70||1166||n||3.0 / 1040||tilting||Y||1/2000s||10.0||Y||Y|
|17.||Panasonic G2||1440||n||3.0 / 460||swivel||Y||1/4000s||2.6||Y||n|
One difference between the cameras concerns the presence of an on-board flash. The SX420 has one, while the E-PM1 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.
Concerning the storage of imaging data, both the SX420 and the E-PM1 write their files to SDXC 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 Olympus PEN E-PM1 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.||Olympus E-PM1||Y||stereo / mono||-||-||mini||2.0||-||-||-|
|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-PM2||Y||stereo / mono||-||-||mini||2.0||-||-||-|
|13.||Olympus E-PL2||Y||stereo / -||-||-||mini||2.0||-||-||-|
|14.||Olympus E-PL3||Y||stereo / -||-||-||mini||2.0||-||-||-|
|15.||Olympus E-PL1||Y||stereo / -||-||-||mini||2.0||-||-||-|
|16.||Panasonic ZS70||-||stereo / mono||-||-||micro||2.0||Y||-||-|
|17.||Panasonic G2||Y||stereo / mono||-||-||mini||2.0||-||-||-|
It is notable that the SX420 offers wifi support, while the E-PM1 does not. Wifi can be a very convenient means to transfer image data to an off-camera location.
Both the SX420 and the E-PM1 have been discontinued, but can regularly be found used on eBay. The E-PM1 was replaced by the Olympus E-PM2, 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 Olympus websites.
So how do things add up? Is the Canon SX420 better than the Olympus E-PM1 or vice versa? The listing below highlights the relative strengths of the two models.
Advantages of the Canon PowerShot SX420 IS:
- More detail: Offers more megapixels (19.9 vs 12.2MP) with a 28% higher linear resolution.
- 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 E-PM1 requires a separate lens.
- Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
- Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
- Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
- More affordable: Was introduced at a lower price, despite coming with a built-in lens.
- More modern: Reflects 4 years and 6 months of technical progress since the E-PM1 launch.
Reasons to prefer the Olympus PEN E-PM1:
- 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 (1080/60i vs 720/25p).
- More framing options: Can be equipped with a hotshoe-mounted accessory-viewfinder.
- More detailed LCD: Has a higher resolution rear screen (460k vs 230k dots).
- Faster burst: Shoots at higher frequency (5.5 vs 0.5 flaps/sec) to capture the decisive moment.
- 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 lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
- More heavily discounted: Has been around for much longer (launched in June 2011).
If the number of relative strengths (bullet points above) is taken as a guide, the E-PM1 is the clear winner of the contest (13 : 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 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 Olympus E-PM1 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 E-PM1. 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 SX420||..||..||..||..||..||3/5||Jan 2016||299|
|2.||Olympus E-PM1||..||86/100||..||71/100||4.5/5||4.5/5||Jun 2011||499|
|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-PM2||3/5||..||..||77/100||5/5||4.5/5||Sep 2012||499|
|13.||Olympus E-PL2||3/5||83/100||..||71/100||4.5/5||4.5/5||Jan 2011||599|
|14.||Olympus E-PL3||3/5||+ +||..||72/100||4.5/5||4/5||Jun 2011||599|
|15.||Olympus E-PL1||..||86/100||..||69/100||4/5||4.5/5||Feb 2010||599|
|16.||Panasonic ZS70||..||+ +||..||..||4/5||4/5||Apr 2017||449|
|17.||Panasonic G2||..||..||..||72/100||4/5||4.5/5||Mar 2010||599|
|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. 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? 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 1Ds vs Olympus E-PM1
- Canon 40D vs Canon SX420
- Canon G7 X Mark III vs Canon SX420
- Canon SL2 vs Olympus E-PM1
- Canon SX420 vs Canon XSi
- Canon SX420 vs Fujifilm X-E2S
- Canon SX420 vs Nikon D800E
- Canon SX420 vs Olympus E-M1X
- Leica M-E Typ 240 vs Olympus E-PM1
- Nikon D3500 vs Olympus E-PM1
- Olympus E-PM1 vs Olympus TG-5
- Olympus E-PM1 vs Sony A850
Specifications: Canon SX420 vs Olympus E-PM1
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||Olympus E-PM1|
|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||June 2011|
|Launch Price||USD 299||USD 499|
|Sensor Specs||Canon SX420||Olympus E-PM1|
|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||12.2 Megapixels|
|Image Resolution||5152 x 3864 pixels||4032 x 3024 pixels|
|Pixel Pitch||1.19 μm||4.29 μm|
|Pixel Density||70.91 MP/cm2||5.42 MP/cm2|
|Moiré control||no AA filter||Anti-Alias filter|
|Movie Capability||720/25p Video||1080/60i Video|
|ISO Setting||100 - 1,600 ISO||100 - 12,800 ISO|
|Image Processor||DIGIC 4+||TruePic VI|
|DXO Sensor Quality (score)||..||52|
|DXO Color Depth (bits)||..||21.0|
|DXO Dynamic Range (EV)||..||10.3|
|DXO Low Light (ISO)||..||499|
|Screen Specs||Canon SX420||Olympus E-PM1|
|Viewfinder Type||no viewfinder||Viewfinder optional|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0inch||3.0inch|
|LCD Resolution||230k dots||460k dots|
|LCD Attachment||Fixed screen||Fixed screen|
|Shooting Specs||Canon SX420||Olympus E-PM1|
|Focus System||Contrast-detect AF||Contrast-detect AF|
|Continuous Shooting||0.5 shutter flaps/s||5.5 shutter flaps/s|
|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||no|
|Connectivity Specs||Canon SX420||Olympus E-PM1|
|External Flash||no Hotshoe||Hotshoe|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||no HDMI||mini HDMI|
|Wifi Support||Wifi built-in||no Wifi|
|Near-Field Communication||NFC built-in||no NFC|
|Body Specs||Canon SX420||Olympus E-PM1|
|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)
110 x 64 x 34 mm
(4.3 x 2.5 x 1.3 in)
|Camera Weight||325 g (11.5 oz)||265 g (9.3 oz)|
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