Canon 20D vs Olympus E-M10 III
The Canon EOS 20D and the Olympus OM-D E-M10 Mark III are two digital cameras that were announced, respectively, in August 2004 and August 2017. The 20D is a DSLR, while the E-M10 III is a mirrorless interchangeable lens camera. The cameras are based on an APS-C (20D) and a Four Thirds (E-M10 III) sensor. The Canon has a resolution of 8.2 megapixels, whereas the Olympus provides 15.9 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
|Canon 20D||Olympus E-M10 III|
|Digital single lens reflex||Mirrorless system camera|
|Canon EF mount lenses||Micro Four Thirds lenses|
|8.2 MP, APS-C Sensor||15.9 MP, Four Thirds Sensor|
|no Video||4K/30p Video|
|ISO 100-1600 (100-3200)||ISO 200-25600|
|Optical viewfinder||Electronic viewfinder (2360k dots)|
|1.8" LCD, 118k dots||3.0" LCD, 1040k dots|
|Fixed screen (not touch-sensitive)||Tilting touchscreen|
|5 shutter flaps per second||8.6 shutter flaps per second|
|Lens stabilization only||In-body stabilization|
|700 shots per battery charge||330 shots per battery charge|
|144 x 106 x 72 mm, 770 g||122 x 84 x 50 mm, 410 g|
Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS 20D and the Olympus OM-D E-M10 Mark III? 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 20D and the Olympus E-M10 III 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 dimensions are rounded to the nearest millimeter.
The E-M10 III can be obtained in two different colors (black, silver), while the 20D 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 Olympus E-M10 III is considerably smaller (33 percent) than the Canon 20D. Moreover, the E-M10 III is substantially lighter (47 percent) than the 20D. In this context, it is worth noting that neither the 20D nor the E-M10 III are weather-sealed.
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 (20D) and the Micro Four Thirds Lens Catalog (E-M10 III). Mirrorless cameras, such as the E-M10 III, 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 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, just click on the right or left arrow next to the camera that you would like to inspect. Alternatively, you can also use the CAM-parator to select your camera combination among a larger number of options.
|Canon 20D»||5.7 in||4.2 in||2.8 in||27.2 oz||700||n||Aug 2004||1,499||-||Canon 20D|
|Olympus E-M10 III«||4.8 in||3.3 in||2.0 in||14.5 oz||330||n||Aug 2017||649||Olympus E-M10 III|
|Canon 7D II« »||5.9 in||4.4 in||3.1 in||32.1 oz||670||Y||Sep 2014||1,799||Canon 7D II|
|Canon 60D« »||5.7 in||4.2 in||3.1 in||26.6 oz||1100||Y||Aug 2010||1,399||-||Canon 60D|
|Canon 7D« »||5.8 in||4.4 in||2.9 in||30.3 oz||800||Y||Sep 2009||1,699||-||Canon 7D|
|Canon 50D« »||5.7 in||4.3 in||2.9 in||29.0 oz||800||Y||Aug 2008||1,299||-||Canon 50D|
|Canon 40D« »||5.7 in||4.3 in||2.9 in||29.0 oz||750||n||Aug 2007||1,299||-||Canon 40D|
|Canon 30D« »||5.7 in||4.2 in||2.9 in||27.7 oz||750||n||Feb 2006||1,399||-||Canon 30D|
|Canon XT« »||5.0 in||3.7 in||2.5 in||19.0 oz||400||n||Feb 2005||899||-||Canon XT|
|Canon 10D« »||5.9 in||4.2 in||3.0 in||30.0 oz||500||n||Feb 2003||1,999||-||Canon 10D|
|Canon Rebel« »||5.6 in||3.9 in||2.8 in||22.9 oz||400||n||Aug 2003||899||-||Canon Rebel|
|Nikon D200« »||5.8 in||4.4 in||2.9 in||32.5 oz||400||Y||Nov 2005||1,699||-||Nikon D200|
|Olympus E-PL9« »||4.6 in||2.7 in||1.5 in||13.4 oz||350||n||Feb 2018||549||Olympus E-PL9|
|Olympus E-PL8« »||4.5 in||2.6 in||1.5 in||12.6 oz||350||n||Sep 2016||549||-||Olympus E-PL8|
|Olympus PEN-F« »||4.9 in||2.8 in||1.5 in||15.1 oz||330||n||Jan 2016||1,199||Olympus PEN-F|
|Olympus E-M10 II« »||4.7 in||3.3 in||1.9 in||13.8 oz||320||n||Aug 2015||649||-||Olympus E-M10 II|
|Olympus E-M10« »||4.7 in||3.2 in||1.8 in||14.0 oz||320||n||Jan 2014||699||-||Olympus E-M10|
|Note: Measurements and pricing do not include easily detachable parts, such as interchangeable lenses or optional viewfinders.|
Any camera decision will obviously take relative prices into account. 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 E-M10 III was launched at a markedly lower price (by 57 percent) than the 20D, 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 imaging sensor is a crucial determinant 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. 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 20D features an APS-C sensor and the Olympus E-M10 III a Four Thirds sensor. The sensor area in the E-M10 III 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 20D has a native 3:2 aspect ratio, while the one in the E-M10 III offers a 4:3 aspect.
Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors.
Despite having a smaller sensor, the E-M10 III offers a higher resolution of 15.9 megapixels, compared with 8.2 MP of the 20D. 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 3.76μm versus 6.42μm for the 20D). However, it should be noted that the E-M10 III is much more recent (by 13 years) than the 20D, 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 E-M10 III has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
The resolution advantage of the Olympus E-M10 III implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the E-M10 III for good quality output (200 dots per inch) amounts to 23 x 17.3 inch or 58.5 x 43.9 cm, for very good quality (250 dpi) 18.4 x 13.8 inch or 46.8 x 35.1 cm, and for excellent quality (300 dpi) 15.4 x 11.5 inch or 39 x 29.3 cm. The corresponding values for the Canon 20D are 17.5 x 11.7 inch or 44.5 x 29.7 cm for good quality, 14 x 9.3 inch or 35.6 x 23.7 cm for very good quality, and 11.7 x 7.8 inch or 29.7 x 19.8 cm for excellent quality prints.
The Canon EOS 20D has a native sensitivity range from ISO 100 to ISO 1600, which can be extended to ISO 100-3200. The corresponding ISO settings for the Olympus OM-D E-M10 Mark III 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 determines an overall sensor rating, as well as sub-scores for low-light sensitivity ("DXO Sports"), dynamic range ("DXO Landscape"), and color depth ("DXO Portrait"). The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.
|Canon 20D»||APS-C||8.2||3504||2336||-||21.9||11.0||721||62||Canon 20D|
|Olympus E-M10 III«||Four Thirds||15.9||4608||3456||4K/30p||-||-||-||-||Olympus E-M10 III|
|Canon 7D II« »||APS-C||20.0||5472||3648||1080/60p||22.4||11.8||1082||70||Canon 7D II|
|Canon 60D« »||APS-C||17.9||5184||3456||1080/30p||22.2||11.5||813||66||Canon 60D|
|Canon 7D« »||APS-C||17.9||5184||3456||1080/30p||22.0||11.7||854||66||Canon 7D|
|Canon 50D« »||APS-C||15.1||4752||3168||-||21.8||11.4||696||63||Canon 50D|
|Canon 40D« »||APS-C||10.1||3888||2592||-||22.1||11.3||703||64||Canon 40D|
|Canon 30D« »||APS-C||8.2||3504||2336||-||21.5||10.8||736||59||Canon 30D|
|Canon XT« »||APS-C||8.0||3456||2304||-||21.8||10.8||637||60||Canon XT|
|Canon 10D« »||APS-C||6.3||3072||2048||-||21.1||10.9||571||57||Canon 10D|
|Canon Rebel« »||APS-C||6.3||3072||2048||-||21.0||10.8||544||55||Canon Rebel|
|Nikon D200« »||APS-C||10.0||3872||2592||-||22.3||11.5||583||64||Nikon D200|
|Olympus E-PL9« »||Four Thirds||15.9||4608||3456||4K/30p||-||-||-||-||Olympus E-PL9|
|Olympus E-PL8« »||Four Thirds||15.9||4608||3456||1080/30p||-||-||-||-||Olympus E-PL8|
|Olympus PEN-F« »||Four Thirds||20.2||5184||3888||1080/60p||23.1||12.4||894||74||Olympus PEN-F|
|Olympus E-M10 II« »||Four Thirds||15.9||4608||3456||1080/60p||23.1||12.5||842||73||Olympus E-M10 II|
|Olympus E-M10« »||Four Thirds||15.9||4608||3456||1080/30p||22.8||12.3||884||72||Olympus E-M10|
Many modern cameras are not only capable of taking still images, but can also record movies. The E-M10 III indeed provides for movie recording, while the 20D does not. The highest resolution format that the E-M10 III can use is 4K/30p.
Apart from body and sensor, cameras can and do differ across a variety of features. For example, the E-M10 III has an electronic viewfinder (2360k dots), while the 20D 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 E-M10 III offers a wider field of view (100%) than the one in the 20D (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the E-M10 III has a higher magnification (0.62x vs 0.56x), 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 20D, the Olympus E-M10 III, and comparable cameras.
|Canon 20D»||optical||Y||1.8||118||fixed||n||1/8000s||5.0||Y||n||Canon 20D|
|Olympus E-M10 III«||2360||n||3.0||1040||tilting||Y||1/4000s||8.6||Y||Y||Olympus E-M10 III|
|Canon 7D II« »||optical||Y||3.0||1040||fixed||n||1/8000s||10.0||Y||n||Canon 7D II|
|Canon 60D« »||optical||Y||3.0||1040||swivel||n||1/8000s||5.3||Y||n||Canon 60D|
|Canon 7D« »||optical||Y||3.0||920||fixed||n||1/8000s||8.0||Y||n||Canon 7D|
|Canon 50D« »||optical||Y||3.0||920||fixed||n||1/8000s||6.3||Y||n||Canon 50D|
|Canon 40D« »||optical||Y||3.0||230||fixed||n||1/8000s||6.5||Y||n||Canon 40D|
|Canon 30D« »||optical||Y||2.5||230||fixed||n||1/8000s||5.0||Y||n||Canon 30D|
|Canon XT« »||optical||n||1.8||115||fixed||n||1/4000s||3.0||Y||n||Canon XT|
|Canon 10D« »||optical||Y||1.8||118||fixed||n||1/4000s||3.0||Y||n||Canon 10D|
|Canon Rebel« »||optical||n||1.8||118||fixed||n||1/4000s||2.5||Y||n||Canon Rebel|
|Nikon D200« »||optical||Y||2.5||230||fixed||n||1/8000s||5.0||Y||n||Nikon D200|
|Olympus E-PL9« »||-||n||3.0||1040||tilting||Y||1/4000s||8.6||Y||Y||Olympus E-PL9|
|Olympus E-PL8« »||-||n||3.0||1037||tilting||Y||1/4000s||8.0||n||Y||Olympus E-PL8|
|Olympus PEN-F« »||2360||n||3.0||1037||swivel||Y||1/8000s||10.0||n||Y||Olympus PEN-F|
|Olympus E-M10 II« »||2360||n||3.0||1040||tilting||Y||1/4000s||8.0||Y||Y||Olympus E-M10 II|
|Olympus E-M10« »||1440||n||3.0||1037||tilting||Y||1/4000s||8.0||Y||Y||Olympus E-M10|
One feature that is present on the 20D, but is missing on the E-M10 III 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 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 E-M10 III 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 Olympus E-M10 III 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 20D writes its imaging data to Compact Flash cards, while the E-M10 III uses 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 EOS 20D and Olympus OM-D E-M10 Mark III and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
|Canon 20D»||Y||-||-||-||-||-||1.1||-||-||-||Canon 20D|
|Olympus E-M10 III«||Y||stereo||mono||-||-||micro||2.0||Y||-||-||Olympus E-M10 III|
|Canon 7D II« »||Y||stereo||mono||Y||Y||mini||3.0||-||-||-||Canon 7D II|
|Canon 60D« »||Y||mono||mono||Y||-||mini||2.0||-||-||-||Canon 60D|
|Canon 7D« »||Y||mono||-||Y||-||mini||2.0||-||-||-||Canon 7D|
|Canon 50D« »||Y||-||-||-||-||mini||2.0||-||-||-||Canon 50D|
|Canon 40D« »||Y||-||-||-||-||-||2.0||-||-||-||Canon 40D|
|Canon 30D« »||Y||-||-||-||-||-||2.0||-||-||-||Canon 30D|
|Canon XT« »||Y||-||-||-||-||-||2.0||-||-||-||Canon XT|
|Canon 10D« »||Y||-||-||-||-||-||1.1||-||-||-||Canon 10D|
|Canon Rebel« »||Y||-||-||-||-||-||1.1||-||-||-||Canon Rebel|
|Nikon D200« »||Y||-||-||-||-||-||2.0||-||-||-||Nikon D200|
|Olympus E-PL9« »||Y||stereo||mono||-||-||micro||2.0||Y||-||Y||Olympus E-PL9|
|Olympus E-PL8« »||Y||stereo||mono||-||-||micro||2.0||Y||-||-||Olympus E-PL8|
|Olympus PEN-F« »||Y||stereo||mono||-||-||micro||2.0||Y||-||-||Olympus PEN-F|
|Olympus E-M10 II« »||Y||stereo||mono||-||-||micro||2.0||Y||-||-||Olympus E-M10 II|
|Olympus E-M10« »||Y||stereo||mono||-||-||micro||2.0||Y||-||-||Olympus E-M10|
It is notable that the E-M10 III offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the 20D does not offer wifi capability.
Studio photographers will appreciate that the Canon 20D (unlike the E-M10 III) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
The E-M10 III is a recent model that features in the current product line-up of Olympus. In contrast, the 20D has been discontinued (but it can be found pre-owned on eBay). As a replacement in the same line of cameras, the 20D was succeeded by the Canon 30D. 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 20D and the Olympus E-M10 III? Which camera is better? A synthesis of the relative strong points of each of the models is listed below.
Reasons to prefer the Canon EOS 20D:
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- Brighter framing: Features an optical viewfinder for clear, lag-free composition.
- Easier setting verification: Features an LCD display on top to control shooting parameters.
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
- Longer lasting: Can take more shots (700 versus 330) on a single battery charge.
- Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
- More heavily discounted: Has been available for much longer (launched in August 2004).
Arguments in favor of the Olympus OM-D E-M10 Mark III:
- More detail: Has more megapixels (15.9 vs 8.2MP), which boosts linear resolution by 37%.
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- Broader imaging potential: Can capture not only stills but also 4K/30p video.
- 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 (0.62x vs 0.56x).
- Larger screen: Has a bigger rear LCD (3.0" vs 1.8") for image review and settings control.
- More detailed LCD: Has a higher resolution rear screen (1040k vs 118k dots).
- More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
- Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
- Faster burst: Shoots at higher frequency (8.6 vs 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 compact: Is smaller (122x84mm vs 144x106mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 360g or 47 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.
- Faster data transfer: Supports a more advanced USB protocol (2.0 vs 1.1).
- Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
- More affordable: Was introduced into a lower priced category (57 percent cheaper at launch).
- More modern: Reflects 13 years of technical progress since the 20D launch.
If the count of individual advantages (bullet points above) is taken as a guide, the E-M10 III is the clear winner of the contest (21 : 7 points). However, the relevance of individual strengths will vary across photographers, so that you might want to apply your own weighing scheme to the summary points when reflecting and deciding 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 20D and the Olympus E-M10 III 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 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 20D and the E-M10 III in practical situations. At times, user reviews, such as those published at amazon, address these issues in a useful manner, but such feedback is on many occasions incomplete, inconsistent, and unreliable.
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 (cameralabs, dpreview, ephotozine, imaging-resource, and photographyblog). 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.
|Canon 20D»||-||+ +||-||o||-||Aug 2004||1,499||-||Canon 20D|
|Olympus E-M10 III«||+||80/100||4.5/5||4/5||4.5/5||Aug 2017||649||Olympus E-M10 III|
|Canon 7D II« »||+||84/100||4/5||5/5||4.5/5||Sep 2014||1,799||Canon 7D II|
|Canon 60D« »||+||79/100||4/5||5/5||4.5/5||Aug 2010||1,399||-||Canon 60D|
|Canon 7D« »||+ +||84/100||4.5/5||5/5||4.5/5||Sep 2009||1,699||-||Canon 7D|
|Canon 50D« »||+ +||+ +||4.5/5||5/5||4.5/5||Aug 2008||1,299||-||Canon 50D|
|Canon 40D« »||+ +||+ +||4.5/5||o||4.5/5||Aug 2007||1,299||-||Canon 40D|
|Canon 30D« »||+ +||+ +||o||o||-||Feb 2006||1,399||-||Canon 30D|
|Canon XT« »||80/100||+ +||o||o||-||Feb 2005||899||-||Canon XT|
|Canon 10D« »||-||+ +||-||o||-||Feb 2003||1,999||-||Canon 10D|
|Canon Rebel« »||-||+ +||-||o||-||Aug 2003||899||-||Canon Rebel|
|Nikon D200« »||+ +||+ +||o||5/5||-||Nov 2005||1,699||-||Nikon D200|
|Olympus E-PL9« »||+||-||4.5/5||-||4/5||Feb 2018||549||Olympus E-PL9|
|Olympus E-PL8« »||-||-||4.5/5||-||4/5||Sep 2016||549||-||Olympus E-PL8|
|Olympus PEN-F« »||-||82/100||4.5/5||4.5/5||5/5||Jan 2016||1,199||Olympus PEN-F|
|Olympus E-M10 II« »||+ +||80/100||5/5||5/5||5/5||Aug 2015||649||-||Olympus E-M10 II|
|Olympus E-M10« »||-||80/100||5/5||4.5/5||5/5||Jan 2014||699||-||Olympus E-M10|
|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. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, and comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. Also, please note that some of the review sites have changed their methodology and reporting over time.
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 make your choice using the following search menu. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.
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- Canon 20D vs Fujifilm X100
- Canon 20D vs Nikon D3200
- Canon 20D vs Panasonic L1
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- Canon 800D vs Olympus E-M10 III
- Canon G1 X Mark II vs Olympus E-M10 III
- Canon G1 X vs Olympus E-M10 III
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- Nikon D2Xs vs Olympus E-M10 III
- Olympus E-M10 III vs Sony A7R IV
Specifications: Canon 20D vs Olympus E-M10 III
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 20D||Olympus E-M10 III|
|Camera Type||Digital single lens reflex||Mirrorless system camera|
|Camera Lens||Canon EF mount lenses||Micro Four Thirds lenses|
|Launch Date||August 2004||August 2017|
|Launch Price||USD 1499||USD 649|
|Sensor Specs||Canon 20D||Olympus E-M10 III|
|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||8.2 Megapixels||15.9 Megapixels|
|Image Resolution||3504 x 2336 pixels||4608 x 3456 pixels|
|Pixel Pitch||6.42 μm||3.76 μm|
|Pixel Density||2.43 MP/cm2||7.08 MP/cm2|
|Moiré control||Anti-Alias filter||no AA filter|
|Movie Capability||no Video||4K/30p Video|
|ISO Setting||100-1600 ISO||200-25600 ISO|
|ISO Boost||100-3200 ISO||100-25600 ISO|
|Image Processor||DIGIC 2||TruePic VIII|
|DXO Sensor Quality (score)||62||..|
|DXO Color Depth (bits)||21.9||..|
|DXO Dynamic Range (EV)||11.0||..|
|DXO Low Light (ISO)||721||..|
|Screen Specs||Canon 20D||Olympus E-M10 III|
|Viewfinder Type||Optical viewfinder||Electronic viewfinder|
|Viewfinder Field of View||95%||100%|
|Viewfinder Resolution||2360k dots|
|Top-Level Screen||Control Panel||no Top Display|
|LCD Framing||Live View|
|Rear LCD Size||1.8 inch||3.0 inch|
|LCD Resolution||118k dots||1040k dots|
|LCD Attachment||Fixed screen||Tilting screen|
|Touch Input||no Touchscreen||Touchscreen|
|Shooting Specs||Canon 20D||Olympus E-M10 III|
|Autofocus System||Phase-detect AF||Contrast-detect AF|
|Manual Focusing Aid||No Peaking Feature||Focus Peaking|
|Max Shutter Speed (mechanical)||1/8000/s||1/4000/s|
|Continuous Shooting||5 shutter flaps/s||8.6 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||Build-in Flash||Build-in Flash|
|Storage Medium||CF cards||SDXC cards|
|Second Storage Option||Single card slot||Single card slot|
|Connectivity Specs||Canon 20D||Olympus E-M10 III|
|Studio Flash||PC Sync socket||no PC Sync|
|USB Connector||USB 1.1||USB 2.0|
|HDMI Port||no HDMI||micro HDMI|
|Wifi Support||no Wifi||Wifi built-in|
|Body Specs||Canon 20D||Olympus E-M10 III|
|Battery Life (CIPA)||700 shots per charge||330 shots per charge|
144 x 106 x 72 mm
(5.7 x 4.2 x 2.8 in)
122 x 84 x 50 mm
(4.8 x 3.3 x 2.0 in)
|Camera Weight||770 g (27.2 oz)||410 g (14.5 oz)|
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