Canon 6D vs Olympus E-520
The Canon EOS 6D and the Olympus E-520 are two digital cameras that were revealed to the public, respectively, in September 2012 and May 2008. Both are DSLR (Digital Single Lens Reflex) cameras that are based on a full frame (6D) and a Four Thirds (E-520) 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 6D and the Olympus E-520? 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 side-by-side display below illustrates the physical size and weight of the Canon 6D and the Olympus E-520. 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-520 is notably smaller (22 percent) than the Canon 6D. Moreover, the E-520 is markedly lighter (31 percent) than the 6D. It is worth mentioning in this context that the 6D is splash and dust resistant, while the E-520 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 (6D) and the Four Thirds Lens Catalog (E-520).
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 6D||145 mm||111 mm||71 mm||770 g||1090||Y||Sep 2012||2,099|
|2.||Olympus E-520||136 mm||92 mm||68 mm||535 g||750||n||May 2008||699|
|3.||Canon 6D Mark II||144 mm||111 mm||75 mm||765 g||1200||Y||Jun 2017||1,999|
|4.||Canon 1D X Mark II||158 mm||168 mm||83 mm||1530 g||1210||Y||Feb 2016||5,999|
|5.||Canon 5DS||152 mm||116 mm||76 mm||930 g||700||Y||Feb 2015||3,699|
|6.||Canon 7D II||149 mm||112 mm||78 mm||910 g||670||Y||Sep 2014||1,799|
|7.||Canon 70D||139 mm||104 mm||79 mm||755 g||920||Y||Jul 2013||1,199|
|8.||Canon 5D Mark III||152 mm||116 mm||76 mm||950 g||950||Y||Mar 2012||3,499|
|9.||Canon 1D X||158 mm||168 mm||83 mm||1551 g||1120||Y||Oct 2011||6,799|
|10.||Canon 5D Mark II||152 mm||114 mm||75 mm||850 g||850||Y||Sep 2008||3,499|
|11.||Nikon D610||141 mm||113 mm||82 mm||850 g||900||Y||Oct 2013||1,999|
|12.||Nikon D600||141 mm||113 mm||82 mm||850 g||900||Y||Sep 2012||2,099|
|13.||Olympus E-600||130 mm||94 mm||60 mm||535 g||500||n||Aug 2009||449|
|14.||Olympus E-620||130 mm||94 mm||60 mm||521 g||500||n||Feb 2009||699|
|15.||Olympus E-420||130 mm||91 mm||53 mm||440 g||500||n||Mar 2008||599|
|16.||Olympus E-410||130 mm||91 mm||53 mm||435 g||500||n||Mar 2007||699|
|17.||Olympus E-510||136 mm||92 mm||68 mm||538 g||750||n||Mar 2007||799|
|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 E-520 was launched at a markedly lower price (by 67 percent) than the 6D, 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 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 6D features a full frame sensor and the Olympus E-520 a Four Thirds sensor. The sensor area in the E-520 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 6D has a native 3:2 aspect ratio, while the one in the E-520 offers a 4:3 aspect.
Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors.
With 20MP, the 6D offers a higher resolution than the E-520 (10MP), but the 6D nevertheless has larger individual pixels (pixel pitch of 6.57μm versus 4.74μm for the E-520) due to its larger sensor. Moreover, the 6D is a much more recent model (by 4 years and 4 months) than the E-520, 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 6D implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the 6D 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-520 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 EOS 6D has a native sensitivity range from ISO 100 to ISO 25600, which can be extended to ISO 50-102400. The corresponding ISO settings for the Olympus E-520 are ISO 100 to ISO 1600 (no boost).
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 review, the 6D provides substantially higher image quality than the E-520, with an overall score that is 27 points higher. This advantage is based on 2.4 bits higher color depth, 1.7 EV in additional dynamic range, and 2.1 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 6D||Full Frame||20.0||5472||3648||1080/30p||23.8||12.1||2340||82|
|2.||Olympus E-520||Four Thirds||10.0||3648||2736||none||21.4||10.4||548||55|
|3.||Canon 6D Mark II||Full Frame||26.0||6240||4160||1080/60p||24.4||11.9||2862||85|
|4.||Canon 1D X Mark II||Full Frame||20.0||5472||3648||4K/60p||24.1||13.5||3207||88|
|5.||Canon 5DS||Full Frame||50.3||8688||5792||1080/30p||24.7||12.4||2381||87|
|6.||Canon 7D II||APS-C||20.0||5472||3648||1080/60p||22.4||11.8||1082||70|
|8.||Canon 5D Mark III||Full Frame||22.1||5760||3840||1080/30p||24.0||11.7||2293||81|
|9.||Canon 1D X||Full Frame||17.9||5184||3456||1080/30p||23.8||11.8||2786||82|
|10.||Canon 5D Mark II||Full Frame||21.0||5616||3744||1080/30p||23.7||11.9||1815||79|
|11.||Nikon D610||Full Frame||24.2||6016||4016||1080/30p||25.1||14.4||2925||94|
|12.||Nikon D600||Full Frame||24.2||6016||4016||1080/30p||25.1||14.2||2980||94|
|13.||Olympus E-600||Four Thirds||12.2||4032||3024||none||21.5||10.3||541||55|
|14.||Olympus E-620||Four Thirds||12.2||4032||3024||none||21.3||10.3||536||55|
|15.||Olympus E-420||Four Thirds||10.0||3648||2736||none||21.5||10.4||527||56|
|16.||Olympus E-410||Four Thirds||10.0||3648||2736||none||21.1||10.0||494||51|
|17.||Olympus E-510||Four Thirds||10.0||3648||2736||none||21.2||10.0||442||52|
Many modern cameras cannot only take still pictures, but also record videos. The 6D indeed provides movie recording capabilities, while the E-520 does not. The highest resolution format that the 6D can use is 1080/30p.
Apart from body and sensor, cameras can and do differ across a range of features. The 6D and the E-520 are similar in the sense that both have an optical viewfinder. The latter is useful for getting a clear image for framing even in brightly lit environments. The viewfinder in the 6D offers a wider field of view (97%) than the one in the E-520 (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the 6D has a higher magnification (0.71x vs 0.46x), 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 6D, the Olympus E-520, and comparable cameras.
|3.||Canon 6D Mark II||optical||Y||3.0||1040||swivel||Y||1/4000s||6.5||n||n|
|4.||Canon 1D X Mark II||optical||Y||3.2||1620||fixed||Y||1/8000s||16.0||n||n|
|6.||Canon 7D II||optical||Y||3.0||1040||fixed||n||1/8000s||10.0||Y||n|
|8.||Canon 5D Mark III||optical||Y||3.2||1040||fixed||n||1/8000s||6.0||n||n|
|9.||Canon 1D X||optical||Y||3.2||1040||fixed||n||1/8000s||14.0||n||n|
|10.||Canon 5D Mark II||optical||Y||3.0||920||fixed||n||1/8000s||3.9||n||n|
One feature that is present on the 6D, but is missing on the E-520 is a top-level LCD. While being, of course, smaller than the rear screen, the control panel conveys some of the essential shooting information and can be convenient for quick and easy settings verification.
The 6D writes its imaging data to SDXC cards, while the E-520 uses Compact Flash or xD Picture cards. The E-520 features dual card slots, which can be very useful in case a memory card fails. In contrast, the 6D only has one slot.
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 6D and Olympus E-520 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
| NFC |
|3.||Canon 6D Mark II||Y||stereo||mono||Y||-||mini||2.0||Y||Y||Y|
|4.||Canon 1D X Mark II||Y||mono||mono||Y||Y||mini||3.0||-||-||-|
|6.||Canon 7D II||Y||stereo||mono||Y||Y||mini||3.0||-||-||-|
|8.||Canon 5D Mark III||Y||mono||mono||Y||Y||mini||2.0||-||-||-|
|9.||Canon 1D X||Y||mono||-||Y||-||mini||2.0||-||-||-|
|10.||Canon 5D Mark II||Y||mono||mono||Y||-||mini||2.0||-||-||-|
It is notable that the 6D offers wifi support, while the E-520 does not. Wifi can be a very convenient means to transfer image data to an off-camera location.
Travel and landscape photographers will find it useful that the 6D has an internal geolocalization sensor and can record GPS coordinates in its EXIF data.
Both the 6D and the E-520 have been discontinued, but can regularly be found used on eBay. The 6D was replaced by the Canon 6D Mark II, while the E-520 does not have a direct successor. 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 there a clear favorite between the Canon 6D and the Olympus E-520? Which camera is better? Below is a summary of the relative strengths of each of the two contestants.
Reasons to prefer the Canon EOS 6D:
- More detail: Offers more megapixels (20 vs 10MP) with a 44% higher linear resolution.
- Better image quality: Scores substantially higher (27 points) in the DXO overall assessment.
- Richer colors: Generates images with noticeably better colors (2.4 bits more color depth).
- More dynamic range: Captures a larger spectrum of light and dark details (1.7 EV of extra DR).
- Better low-light sensitivity: Requires less light for good images (2.1 stops ISO advantage).
- Broader imaging potential: Can record not only still images but also 1080/30p movies.
- More complete view: Has a viewfinder with a larger field of view (97% vs 95%).
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.71x vs 0.46x).
- Easier setting verification: Features an LCD display on top to control shooting parameters.
- 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 (1040k vs 215k dots).
- Faster burst: Shoots at higher frequency (4.5 vs 3.5 flaps/sec) to capture the decisive moment.
- Longer lasting: Can take more shots (1090 versus 750) on a single battery charge.
- Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
- Easier geotagging: Features an internal GPS sensor to log localization data.
- Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
- More modern: Reflects 4 years and 4 months of technical progress since the E-520 launch.
Arguments in favor of the Olympus E-520:
- More compact: Is smaller (136x92mm vs 145x111mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 235g or 31 percent) and is thus easier to take along.
- Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
- Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
- Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
- More affordable: Was introduced into a lower priced category (67 percent cheaper at launch).
- More heavily discounted: Has been around for much longer (launched in May 2008).
If the count of relative strengths (bullet points above) is taken as a measure, the 6D is the clear winner of the match-up (17 : 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 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 6D and the Olympus E-520 place the cameras among the top in their class? Find out in the latest Best DSLR Camera listing 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 remains incomplete and does no justice, for example, to the way the 6D or the E-520 perform in practice. 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 following table reports the overall ratings of the cameras as published by some of the major 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 6D||5/5||+ +||83/100||4.5/5||4.5/5||Sep 2012||2,099|
|2.||Olympus E-520||..||87/100||+ +||4.5/5||4.5/5||May 2008||699|
|3.||Canon 6D Mark II||4/5||+||80/100||4.5/5||4/5||Jun 2017||1,999|
|4.||Canon 1D X Mark II||..||..||89/100||4.5/5||4.5/5||Feb 2016||5,999|
|5.||Canon 5DS||..||+||83/100||4.5/5||4.5/5||Feb 2015||3,699|
|6.||Canon 7D II||4.5/5||+||84/100||4/5||4.5/5||Sep 2014||1,799|
|7.||Canon 70D||5/5||+ +||83/100||4.5/5||5/5||Jul 2013||1,199|
|8.||Canon 5D Mark III||..||+ +||82/100||4.5/5||4.5/5||Mar 2012||3,499|
|9.||Canon 1D X||5/5||..||..||4.5/5||4.5/5||Oct 2011||6,799|
|10.||Canon 5D Mark II||4/5||91/100||79/100||4/5||..||Sep 2008||3,499|
|11.||Nikon D610||4/5||+ +||87/100||4.5/5||4.5/5||Oct 2013||1,999|
|12.||Nikon D600||4/5||+ +||87/100||5/5||4.5/5||Sep 2012||2,099|
|13.||Olympus E-600||..||..||..||..||4.5/5||Aug 2009||449|
|14.||Olympus E-620||3/5||88/100||72/100||4.5/5||5/5||Feb 2009||699|
|15.||Olympus E-420||..||85/100||+ +||4/5||4.5/5||Mar 2008||599|
|16.||Olympus E-410||..||86/100||+ +||4/5||4.5/5||Mar 2007||699|
|17.||Olympus E-510||..||89/100||+ +||3.5/5||4.5/5||Mar 2007||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. 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.
Specifications: Canon 6D vs Olympus E-520
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 6D||Olympus E-520|
|Camera Type||Digital single lens reflex||Digital single lens reflex|
|Camera Lens||Canon EF mount lenses||Four Thirds lenses|
|Launch Date||September 2012||May 2008|
|Launch Price||USD 2,099||USD 699|
|Sensor Specs||Canon 6D||Olympus E-520|
|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||1080/30p Video||no Video|
|ISO Setting||100 - 25,600 ISO||100 - 1,600 ISO|
|ISO Boost||50 - 102,400 ISO||no Enhancement|
|Image Processor||DIGIC 5+||TruePic III|
|DXO Sensor Quality (score)||82||55|
|DXO Color Depth (bits)||23.8||21.4|
|DXO Dynamic Range (EV)||12.1||10.4|
|DXO Low Light (ISO)||2340||548|
|Screen Specs||Canon 6D||Olympus E-520|
|Viewfinder Type||Optical viewfinder||Optical viewfinder|
|Viewfinder Field of View||97%||95%|
|Top-Level Screen||Control Panel||no Top Display|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0inch||2.7inch|
|LCD Resolution||1040k dots||215k dots|
|LCD Attachment||Fixed screen||Fixed screen|
|Shooting Specs||Canon 6D||Olympus E-520|
|Focus System||Phase-detect AF||Phase-detect AF|
|Continuous Shooting||4.5 shutter flaps/s||3.5 shutter flaps/s|
|Image Stabilization||Lens stabilization only||In-body stabilization|
|Fill Flash||no On-Board Flash||Built-in Flash|
|Storage Medium||SDXC cards||CF or XD cards|
|Second Storage Option||Single card slot||Dual card slots|
|Connectivity Specs||Canon 6D||Olympus E-520|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||mini HDMI||no HDMI|
|Microphone Port||External MIC port||no MIC socket|
|Wifi Support||Wifi built-in||no Wifi|
|Geotagging||GPS built-in||no internal GPS|
|Body Specs||Canon 6D||Olympus E-520|
|Environmental Sealing||Weathersealed body||not weather sealed|
|Battery Life (CIPA)||1090 shots per charge||750 shots per charge|
145 x 111 x 71 mm
(5.7 x 4.4 x 2.8 in)
136 x 92 x 68 mm
(5.4 x 3.6 x 2.7 in)
|Camera Weight||770 g (27.2 oz)||535 g (18.9 oz)|
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