Canon R6 vs Olympus E-420
The Canon EOS R6 and the Olympus E-420 are two digital cameras that were announced, respectively, in July 2020 and March 2008. The Canon R6 is a mirrorless interchangeable lens camera, while the E-420 is a DSLR. The cameras are based on a full frame (Canon R6) and a Four Thirds (E-420) sensor. The Canon has a resolution of 20 megapixels, whereas the Olympus provides 10 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 R6 and the Olympus E-420? 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 R6 and the Olympus E-420 are illustrated in the side-by-side display below. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. All width, height and depth dimensions are rounded to the nearest millimeter.
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Olympus E-420 is notably smaller (13 percent) than the Canon R6. Moreover, the E-420 is substantially lighter (35 percent) than the Canon R6. It is worth mentioning in this context that the Canon R6 is splash and dust resistant, while the E-420 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. Hence, you might want to study and compare the specifications of available lenses in order to get the full picture of the size and weight of the two camera systems.
Concerning battery life, the Canon R6 gets 360 shots out of its LP-E6NH battery, while the E-420 can take 500 images on a single charge of its BLS-1 power pack. The power pack in the Canon R6 can be charged via the USB port, so that it is not always necessary to take the battery charger along when travelling.
The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. If you want to switch the focus of the display and review another camera pair, you can move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons there.
|1.||Canon R6||138 mm||98 mm||88 mm||680 g||360||Y||Jul 2020||2,499|
|2.||Olympus E-420||130 mm||91 mm||53 mm||440 g||500||n||Mar 2008||599|
|3.||Canon R5||138 mm||98 mm||88 mm||738 g||320||Y||Jul 2020||3,899|
|4.||Canon R||139 mm||98 mm||84 mm||660 g||370||Y||Sep 2018||2,299|
|5.||Canon 6D||145 mm||111 mm||71 mm||770 g||1090||Y||Sep 2012||2,099|
|6.||Nikon Z5||134 mm||101 mm||67 mm||675 g||470||Y||Jul 2020||1,399|
|7.||Nikon Z7 II||134 mm||101 mm||70 mm||705 g||420||Y||Oct 2020||2,999|
|8.||Nikon Z6 II||134 mm||101 mm||70 mm||705 g||410||Y||Oct 2020||1,999|
|9.||Olympus E-450||130 mm||91 mm||53 mm||440 g||500||n||Mar 2009||499|
|10.||Olympus E-620||130 mm||94 mm||60 mm||521 g||500||n||Feb 2009||699|
|11.||Olympus E-520||136 mm||92 mm||68 mm||535 g||750||n||May 2008||699|
|12.||Olympus E-410||130 mm||91 mm||53 mm||435 g||500||n||Mar 2007||699|
|13.||Olympus E-400||130 mm||91 mm||53 mm||435 g||500||n||Sep 2006||699|
|14.||Panasonic S5||133 mm||98 mm||82 mm||714 g||440||Y||Sep 2020||1,999|
|15.||Panasonic S1||149 mm||110 mm||97 mm||1017 g||400||Y||Feb 2019||2,499|
|16.||Sony A9 II||129 mm||96 mm||76 mm||678 g||690||Y||Oct 2019||4,499|
|17.||Sony A99||147 mm||111 mm||78 mm||812 g||500||Y||Sep 2012||2,799|
|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 listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The E-420 was launched at a markedly lower price (by 76 percent) than the Canon R6, 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.
The size of the sensor inside a digital camera is one of the key determinants 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. 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 tend to be more expensive and lead to bigger and heavier cameras and lenses.
Of the two cameras under consideration, the Canon R6 features a full frame sensor and the Olympus E-420 a Four Thirds sensor. The sensor area in the E-420 is 74 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.0 and 2.0. The sensor in the Canon R6 has a native 3:2 aspect ratio, while the one in the E-420 offers a 4:3 aspect.
In terms of underlying technology, both cameras are build around CMOS sensors.
With 20MP, the Canon R6 offers a higher resolution than the E-420 (10MP), but the Canon R6 nevertheless has larger individual pixels (pixel pitch of 6.57μm versus 4.74μm for the E-420) due to its larger sensor. Moreover, the Canon R6 is a much more recent model (by 12 years and 4 months) than the E-420, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixels.
The resolution advantage of the Canon R6 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the Canon R6 for good quality output (200 dots per inch) amounts to 27.4 x 18.2 inches or 69.5 x 46.3 cm, for very good quality (250 dpi) 21.9 x 14.6 inches or 55.6 x 37.1 cm, and for excellent quality (300 dpi) 18.2 x 12.2 inches or 46.3 x 30.9 cm. The corresponding values for the Olympus E-420 are 18.2 x 13.7 inches or 46.3 x 34.7 cm for good quality, 14.6 x 10.9 inches or 37.1 x 27.8 cm for very good quality, and 12.2 x 9.1 inches or 30.9 x 23.2 cm for excellent quality prints.
The Canon R6 has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.
The Canon EOS R6 has a native sensitivity range from ISO 100 to ISO 102400, which can be extended to ISO 50-204800. The corresponding ISO settings for the Olympus E-420 are ISO 100 to ISO 1600 (no boost).
Consistent information on actual sensor performance is available from DXO Mark for many cameras. 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 review, the Canon R6 provides substantially higher image quality than the E-420, with an overall score that is 34 points higher. This advantage is based on 2.7 bits higher color depth, 3.9 EV in additional dynamic range, and 2.7 stops in additional low light sensitivity. The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.
| DXO |
|1.||Canon R6||Full Frame||20.0||5472||3648||4k/60p||24.2||14.3||3394||90|
|2.||Olympus E-420||Four Thirds||10.0||3648||2736||none||21.5||10.4||527||56|
|3.||Canon R5||Full Frame||44.8||8192||5464||8k/30p||25.3||14.6||3042||95|
|4.||Canon R||Full Frame||30.1||6720||4480||4K/30p||24.5||13.5||2742||89|
|5.||Canon 6D||Full Frame||20.0||5472||3648||1080/30p||23.8||12.1||2340||82|
|6.||Nikon Z5||Full Frame||24.2||6016||4016||4K/30p||..||..||..||..|
|7.||Nikon Z7 II||Full Frame||45.4||8256||5504||4K/60p||26.3||14.7||2841||100|
|8.||Nikon Z6 II||Full Frame||24.3||6048||4024||4K/60p||..||..||..||..|
|9.||Olympus E-450||Four Thirds||10.0||3648||2736||none||21.5||10.5||512||56|
|10.||Olympus E-620||Four Thirds||12.2||4032||3024||none||21.3||10.3||536||55|
|11.||Olympus E-520||Four Thirds||10.0||3648||2736||none||21.4||10.4||548||55|
|12.||Olympus E-410||Four Thirds||10.0||3648||2736||none||21.1||10.0||494||51|
|13.||Olympus E-400||Four Thirds||10.0||3648||2736||none||..||..||..||..|
|14.||Panasonic S5||Full Frame||24.0||6000||4000||4K/60p||..||..||..||..|
|15.||Panasonic S1||Full Frame||24.0||6000||4000||4K/60p||25.2||14.5||3333||95|
|16.||Sony A9 II||Full Frame||24.0||6000||4000||4K/30p||25.0||14.0||3434||93|
|17.||Sony A99||Full Frame||24.0||6000||4000||1080/60p||25.0||14.0||1555||89|
Many modern cameras are not only capable of taking still images, but also of capturing video footage. The Canon R6 indeed provides movie recording capabilities, while the E-420 does not. The highest resolution format that the Canon R6 can use is 4k/60p.
Beyond body and sensor, cameras can and do differ across a range of features. For example, the Canon R6 has an electronic viewfinder (3690k dots), while the E-420 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 Canon R6 offers a wider field of view (100%) than the one in the E-420 (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the Canon R6 has a higher magnification (0.76x vs 0.46x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The adjacent table lists some of the other core features of the Canon R6 and Olympus E-420 along with similar information for a selection of comparators.
|7.||Nikon Z7 II||3690||Y||3.2||2100||tilting||Y||1/8000s||10.0||n||Y|
|8.||Nikon Z6 II||3690||Y||3.2||2100||tilting||Y||1/8000s||14.0||n||Y|
|16.||Sony A9 II||3686||n||3.0||1440||tilting||Y||1/8000s||10.0||n||Y|
One feature that differentiates the Canon R6 and the E-420 is in-body image stabilization (IBIS). The Canon R6 reduces the risk of handshake-induced blur with all attached lenses, while the E-420 offers no blur reduction with lenses that themselves do not provide optical image stabilization.The Canon R6 has an articulated LCD that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in snapping selfies. In contrast, the E-420 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 Canon R6 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 Canon R6 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.
The Canon R6 writes its imaging data to SDXC cards, while the E-420 uses Compact Flash or xD Picture cards. Both cameras feature dual card slots, which can be very useful in case a memory card fails.
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 R6 and Olympus E-420 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
| NFC |
|7.||Nikon Z7 II||Y||stereo||mono||Y||Y||micro||3.2||Y||-||Y|
|8.||Nikon Z6 II||Y||stereo||mono||Y||Y||micro||3.2||Y||-||Y|
|16.||Sony A9 II||Y||stereo||mono||Y||Y||micro||3.1||Y||Y||Y|
It is notable that the Canon R6 offers wifi support, while the E-420 does not. Wifi can be a very convenient means to transfer image data to an off-camera location.
The Canon R6 is a recent model that features in the current product line-up of Canon. In contrast, the E-420 has been discontinued (but can be found pre-owned on eBay). There has not been a direct replacement model for the E-420 from Olympus. 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 what is the bottom line? Is the Canon R6 better than the Olympus E-420 or vice versa? Below is a summary of the relative strengths of each of the two contestants.
Advantages of the Canon EOS R6:
- More detail: Offers more megapixels (20 vs 10MP) with a 44% higher linear resolution.
- Better image quality: Scores substantially higher (34 points) in the DXO overall assessment.
- Richer colors: Generates images with noticeably better colors (2.7 bits more color depth).
- More dynamic range: Captures a larger spectrum of light and dark details (3.9 EV of extra DR).
- Better low-light sensitivity: Requires less light for good images (2.7 stops ISO advantage).
- Broader imaging potential: Can record not only still images but also 4k/60p movies.
- Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
- 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 (0.76x vs 0.46x).
- Larger screen: Has a bigger rear LCD (3.0" vs 2.7") for image review and settings control.
- More detailed LCD: Has a higher resolution rear screen (1620k vs 215k dots).
- More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
- Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
- 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 (12 vs 3.5 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.
- Easier travel charging: Can be conveniently charged via its USB port.
- Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
- Sharper images: Has hand-shake reducing image stabilization built-in.
- More legacy lens friendly: Can take a broad range of non-native lenses via adapters.
- Faster data transfer: Supports a more advanced USB protocol (3.2 vs 2.0).
- Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
- Easier wireless transfer: Supports Bluetooth for image sharing without cables.
- More modern: Reflects 12 years and 4 months of technical progress since the E-420 launch.
Arguments in favor of the Olympus E-420:
- Brighter framing: Features an optical viewfinder for clear, lag-free composition.
- More compact: Is smaller (130x91mm vs 138x98mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 240g or 35 percent) and is thus easier to take along.
- Longer lasting: Gets more shots (500 versus 360) out of a single battery charge.
- Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
- More affordable: Was introduced into a lower priced category (76 percent cheaper at launch).
- More heavily discounted: Has been around for much longer (launched in March 2008).
If the count of individual advantages (bullet points above) is taken as a guide, the Canon R6 is the clear winner of the match-up (27 : 7 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 R6 and the Olympus E-420 place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera and Best DSLR 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 says little about, for example, the shooting experience and imaging performance of the Canon R6 and the E-420 in practical situations. User reviews that are available, for instance, at amazon can sometimes shed light on these issues, but such feedback is all too often partial, inconsistent, and inaccurate.
This is why hands-on reviews by experts are important. The adjacent summary-table relays the overall verdicts of several of the most popular camera review sites (amateurphotographer [AP], cameralabs [CL], 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 R6||5/5||+ +||90/100||4.5/5||5/5||Jul 2020||2,499|
|2.||Olympus E-420||..||85/100||+ +||4/5||4.5/5||Mar 2008||599|
|3.||Canon R5||4.5/5||..||91/100||4.5/5||4.5/5||Jul 2020||3,899|
|4.||Canon R||4/5||o||79/100||4.5/5||4/5||Sep 2018||2,299|
|5.||Canon 6D||5/5||+ +||83/100||4.5/5||4.5/5||Sep 2012||2,099|
|6.||Nikon Z5||4/5||..||89/100||4.5/5||4/5||Jul 2020||1,399|
|7.||Nikon Z7 II||4.5/5||..||..||4.5/5||4.5/5||Oct 2020||2,999|
|8.||Nikon Z6 II||4.5/5||..||89/100||4.5/5||4.5/5||Oct 2020||1,999|
|9.||Olympus E-450||..||..||..||4/5||4/5||Mar 2009||499|
|10.||Olympus E-620||3/5||88/100||72/100||4.5/5||5/5||Feb 2009||699|
|11.||Olympus E-520||..||87/100||+ +||4.5/5||4.5/5||May 2008||699|
|12.||Olympus E-410||..||86/100||+ +||4/5||4.5/5||Mar 2007||699|
|13.||Olympus E-400||..||85/100||..||4/5||4/5||Sep 2006||699|
|14.||Panasonic S5||4.5/5||+ +||88/100||4.5/5||4.5/5||Sep 2020||1,999|
|15.||Panasonic S1||4.5/5||+ +||88/100||4.5/5||4/5||Feb 2019||2,499|
|16.||Sony A9 II||..||..||90/100||5/5||5/5||Oct 2019||4,499|
|17.||Sony A99||5/5||..||84/100||4.5/5||4.5/5||Sep 2012||2,799|
|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. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. 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 would like to check on the differences and similarities of other camera models, just use the search menu below. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.
Specifications: Canon R6 vs Olympus E-420
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 R6||Olympus E-420|
|Camera Type||Mirrorless system camera||Digital single lens reflex|
|Camera Lens||Canon RF mount lenses||Four Thirds lenses|
|Launch Date||July 2020||March 2008|
|Launch Price||USD 2,499||USD 599|
|Sensor Specs||Canon R6||Olympus E-420|
|Sensor Format||Full Frame Sensor||Four Thirds Sensor|
|Sensor Size||36.0 x 24.0 mm||17.3 x 13.0 mm|
|Sensor Area||864 mm2||224.9 mm2|
|Sensor Diagonal||43.3 mm||21.6 mm|
|Sensor Resolution||20 Megapixels||10 Megapixels|
|Image Resolution||5472 x 3648 pixels||3648 x 2736 pixels|
|Pixel Pitch||6.57 μm||4.74 μm|
|Pixel Density||2.31 MP/cm2||4.44 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||4k/60p Video||no Video|
|ISO Setting||100 - 102,400 ISO||100 - 1,600 ISO|
|ISO Boost||50 - 204,800 ISO||no Enhancement|
|Image Processor||DIGIC X||TruePic III|
|DXO Sensor Quality (score)||90||56|
|DXO Color Depth (bits)||24.2||21.5|
|DXO Dynamic Range (EV)||14.3||10.4|
|DXO Low Light (ISO)||3394||527|
|Screen Specs||Canon R6||Olympus E-420|
|Viewfinder Type||Electronic viewfinder||Optical viewfinder|
|Viewfinder Field of View||100%||95%|
|Viewfinder Resolution||3690k dots|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0inch||2.7inch|
|LCD Resolution||1620k dots||215k dots|
|LCD Attachment||Swivel screen||Fixed screen|
|Touch Input||Touchscreen||no Touchscreen|
|Shooting Specs||Canon R6||Olympus E-420|
|Focus System||On-Sensor Phase-detect||Phase-detect AF|
|Manual Focusing Aid||Focus Peaking||no Peaking Feature|
|Continuous Shooting||12 shutter flaps/s||3.5 shutter flaps/s|
|Electronic Shutter||up to 1/8000s||no E-Shutter|
|Time-Lapse Photography||Intervalometer built-in||no Intervalometer|
|Image Stabilization||In-body stabilization||Lens stabilization only|
|Fill Flash||no On-Board Flash||Built-in Flash|
|Storage Medium||SDXC cards||CF or XD cards|
|Second Storage Option||Dual card slots||Dual card slots|
|Connectivity Specs||Canon R6||Olympus E-420|
|USB Connector||USB 3.2||USB 2.0|
|HDMI Port||micro HDMI||no HDMI|
|Microphone Port||External MIC port||no MIC socket|
|Headphone Socket||Headphone port||no Headphone port|
|Wifi Support||Wifi built-in||no Wifi|
|Bluetooth Support||Bluetooth built-in||no Bluetooth|
|Body Specs||Canon R6||Olympus E-420|
|Environmental Sealing||Weathersealed body||not weather sealed|
|Battery Life (CIPA)||360 shots per charge||500 shots per charge|
|In-Camera Charging||USB charging||no USB charging|
138 x 98 x 88 mm
(5.4 x 3.9 x 3.5 in)
130 x 91 x 53 mm
(5.1 x 3.6 x 2.1 in)
|Camera Weight||680 g (24.0 oz)||440 g (15.5 oz)|
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