Canon 20D versus Canon M6
The Canon EOS 20D and the Canon EOS M6 are two digital cameras that were announced, respectively, in August 2004 and February 2017. The 20D is a DSLR, while the M6 is a mirrorless interchangeable lens camera. Both cameras are equipped with an APS-C sensor. The 20D has a resolution of 8.2 megapixel, whereas the M6 provides 24 MP. Read on to find out how these two cameras compare with respect to their size, their sensors, their features, and their reception by expert reviewers.
Body comparison: Canon 20D vs Canon M6
An illustration of the physical size and weight of the Canon 20D and the Canon M6 is provided in the side-by-side display below. Three consecutive perspectives from the front, the top, and the back are presented. All width, height and depth measures are rounded to the nearest millimeter. You can also use the toggle button to switch to a percentage comparison if you prefer that the measures are being expressed in relative terms (in this case, the camera on the left – the 20D – represents 100 percent across all the size and weight measures).
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Canon M6 is considerably smaller (50 percent) than the Canon 20D. Moreover, the M6 is substantially lighter (49 percent) than the 20D. In this context, it is worth noting that neither the 20D nor the M6 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. Hence, you might want to study the specifications of available lenses in order to get the full picture of the size and weight of the two camera systems.
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, just select a new right or left comparator from among the camera models in the table. Alternatively, you can also move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons there.
|Camera Body Specifications
|Canon 20D (⇒ rgt)||5.7 in||4.2 in||2.8 in||27.2 oz||700||no||2004||1,499||discont.||check|
|Canon M6 (⇒ lft)||4.4 in||2.7 in||1.8 in||13.8 oz||295||no||2017||779||latest||check|
|Canon M50 (⇒ lft | rgt)||4.6 in||3.5 in||2.3 in||13.8 oz||235||no||2018||779||latest||check|
|Canon 77D (⇒ lft | rgt)||5.2 in||3.9 in||3.0 in||19.0 oz||600||no||2017||899||latest||check|
|Canon M100 (⇒ lft | rgt)||4.3 in||2.6 in||1.4 in||10.7 oz||295||no||2017||499||latest||check|
|Canon M5 (⇒ lft | rgt)||4.6 in||3.5 in||2.4 in||15.1 oz||295||no||2016||979||latest||check|
|Canon M3 (⇒ lft | rgt)||4.4 in||2.7 in||1.7 in||12.9 oz||250||no||2015||679||discont.||check|
|Canon 7D II (⇒ lft | rgt)||5.9 in||4.4 in||3.1 in||32.1 oz||670||YES||2014||1,799||latest||check|
|Canon 60D (⇒ lft | rgt)||5.7 in||4.2 in||3.1 in||26.6 oz||1100||YES||2010||1,399||discont.||check|
|Canon 7D (⇒ lft | rgt)||5.8 in||4.4 in||2.9 in||30.3 oz||800||YES||2009||1,699||discont.||check|
|Canon 50D (⇒ lft | rgt)||5.7 in||4.3 in||2.9 in||29.0 oz||800||YES||2008||1,299||discont.||check|
|Canon 40D (⇒ lft | rgt)||5.7 in||4.3 in||2.9 in||29.0 oz||750||no||2007||1,299||discont.||check|
|Canon 30D (⇒ lft | rgt)||5.7 in||4.2 in||2.9 in||27.7 oz||750||no||2006||1,399||discont.||check|
|Canon XT (⇒ lft | rgt)||5.0 in||3.7 in||2.5 in||19.0 oz||400||no||2005||899||discont.||check|
|Canon 10D (⇒ lft | rgt)||5.9 in||4.2 in||3.0 in||30.0 oz||500||no||2003||1,999||discont.||check|
|Canon Rebel (⇒ lft | rgt)||5.6 in||3.9 in||2.8 in||22.9 oz||400||no||2003||899||discont.||check|
|Nikon D200 (⇒ lft | rgt)||5.8 in||4.4 in||2.9 in||32.5 oz||400||YES||2005||1,699||discont.||check|
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 M6 was launched at a markedly lower price (by 48 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. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.
Sensor comparison: Canon 20D vs Canon M6
The size of the imaging sensor is a crucial determinant of image quality. All other things equal, a large sensor will have larger individual pixel-units that offer better low-light sensitivity, wider dynamic range, and 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 more expensive and lead to bigger and heavier cameras and lenses.
Both cameras under consideration feature an APS-C sensor, but their sensors differ slightly in size. The sensor area in the M6 is 2 percent smaller. They nevertheless have the same format factor of 1.6. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
Despite having a slightly smaller sensor, the M6 offers a higher resolution of 24 megapixel, compared with 8.2 MP of the 20D. This megapixel advantage comes at the cost of a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 3.72μm versus 6.42μm for the 20D). However, it should be noted that the M6 is much more recent (by 12 years and 6 months) than the 20D, and its sensor will have benefitted from technological advances during this time that make it possible to gather light more efficiently.
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 (⇒ rgt)||APS-C||8.2||3504||2336||no||21.9||11.0||721||62|
|Canon M6 (⇒ lft)||APS-C||24.0||6000||4000||1080/60p||..||..||..||..|
|Canon M50 (⇒ lft | rgt)||APS-C||24.0||6000||4000||4K/24p||..||..||..||..|
|Canon 77D (⇒ lft | rgt)||APS-C||24.0||6000||4000||1080/60p||23.6||13.3||971||78|
|Canon M100 (⇒ lft | rgt)||APS-C||24.0||6000||4000||1080/60p||23.5||12.9||1272||78|
|Canon M5 (⇒ lft | rgt)||APS-C||24.0||6000||4000||1080/60p||23.4||12.4||1262||77|
|Canon M3 (⇒ lft | rgt)||APS-C||24.0||6000||4000||1080/30p||22.8||11.8||1169||72|
|Canon 7D II (⇒ lft | rgt)||APS-C||20.0||5472||3648||1080/60p||22.4||11.8||1082||70|
|Canon 60D (⇒ lft | rgt)||APS-C||17.9||5184||3456||1080/30p||22.2||11.5||813||66|
|Canon 7D (⇒ lft | rgt)||APS-C||17.9||5184||3456||1080/30p||22.0||11.7||854||66|
|Canon 50D (⇒ lft | rgt)||APS-C||15.1||4752||3168||no||21.8||11.4||696||63|
|Canon 40D (⇒ lft | rgt)||APS-C||10.1||3888||2592||no||22.1||11.3||703||64|
|Canon 30D (⇒ lft | rgt)||APS-C||8.2||3504||2336||no||21.5||10.8||736||59|
|Canon XT (⇒ lft | rgt)||APS-C||8.0||3456||2304||no||21.8||10.8||637||60|
|Canon 10D (⇒ lft | rgt)||APS-C||6.3||3072||2048||no||21.1||10.9||571||57|
|Canon Rebel (⇒ lft | rgt)||APS-C||6.3||3072||2048||no||21.0||10.8||544||55|
|Nikon D200 (⇒ lft | rgt)||APS-C||10.0||3872||2592||no||22.3||11.5||583||64|
Many modern cameras are not only capable of taking still images, but also of capturing video footage. The M6 indeed provides for movie recording, while the 20D does not. The highest resolution format that the M6 can use is 1080/60p.
Feature comparison: Canon 20D vs Canon M6
Apart from body and sensor, cameras can and do differ across a range of features. For example, the 20D has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the M6 relies on live view and the rear LCD for framing. The following table reports on some other key feature differences and similarities of the Canon 20D, the Canon M6, and comparable cameras. If you need more detail on the specs, you can find comprehensive listings, for example, in the dpreview camera hub.
|Canon 20D (⇒ rgt)||optical||YES||1.8||118||fixed||no||8000||5.0||13||no|
|Canon M6 (⇒ lft)||no||no||3.0||1040||tilting||YES||4000||9.0||5||no|
|Canon M50 (⇒ lft | rgt)||2360||no||3.0||1040||swivel||YES||4000||10.0||5||no|
|Canon 77D (⇒ lft | rgt)||optical||YES||3.0||1040||swivel||YES||4000||6.0||12||no|
|Canon M100 (⇒ lft | rgt)||no||no||3.0||1040||tilting||YES||4000||6.1||5||no|
|Canon M5 (⇒ lft | rgt)||2360||no||3.2||1620||tilting||YES||4000||9.0||5||no|
|Canon M3 (⇒ lft | rgt)||no||no||3.0||1040||tilting||YES||4000||4.2||5||no|
|Canon 7D II (⇒ lft | rgt)||optical||YES||3.0||1040||fixed||no||8000||10.0||11||no|
|Canon 60D (⇒ lft | rgt)||optical||YES||3.0||1040||swivel||no||8000||5.3||13||no|
|Canon 7D (⇒ lft | rgt)||optical||YES||3.0||920||fixed||no||8000||8.0||12||no|
|Canon 50D (⇒ lft | rgt)||optical||YES||3.0||920||fixed||no||8000||6.3||13||no|
|Canon 40D (⇒ lft | rgt)||optical||YES||3.0||230||fixed||no||8000||6.5||12||no|
|Canon 30D (⇒ lft | rgt)||optical||YES||2.5||230||fixed||no||8000||5.0||13||no|
|Canon XT (⇒ lft | rgt)||optical||no||1.8||115||fixed||no||4000||3.0||13||no|
|Canon 10D (⇒ lft | rgt)||optical||YES||1.8||118||fixed||no||4000||3.0||13||no|
|Canon Rebel (⇒ lft | rgt)||optical||no||1.8||118||fixed||no||4000||2.5||13||no|
|Nikon D200 (⇒ lft | rgt)||optical||YES||2.5||230||fixed||no||8000||5.0||12||no|
The M6 is a current model that online retailers, such as amazon, will have in stock. 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.
Review summary: Canon 20D vs Canon M6
So how do things add up? Which of the two cameras – the Canon 20D or the Canon M6 – has the upper hand? The listing below highlights the relative strengths of the two models.
Arguments in favor of the Canon EOS 20D:
- Easier framing: Has an optical viewfinder for image framing and settings control.
- Easier setting verification: Has an LCD display on top to control shooting parameters.
- Faster shutter: Has higher mechanical shutter speed (8000/sec vs 4000/sec) to freeze action.
- Longer lasting: Can take more shots (700 versus 295) on a single battery charge.
- More heavily discounted: Has been available for much longer (launched in August 2004).
Reasons to prefer the Canon EOS M6:
- More detail: Has more megapixels (24 vs 8.2MP), which boosts linear resolution by 71%.
- Broader imaging potential: Can capture not only stills but also 1080/60p video.
- 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 (9 vs 5 flaps/sec) to capture the decisive moment.
- More compact: Is smaller (112x68mm vs 144x106mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 380g or 49 percent) and is thus easier to take along.
- More legacy lens friendly: Can use many non-native lenses via adapters.
- More affordable: Was introduced into a lower priced category (48 percent cheaper at launch).
- More modern: Reflects 12 years and 6 months of technical progress since the 20D launch.
If the count of relative strengths (bullet points above) is taken as a measure, the M6 is the clear winner of the contest (12 : 5 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.
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 20D or the M6 handle or perform in practice. 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 following table reports the overall rankings of the cameras as published by some of the major camera review sites (cameralabs, dpreview, ephotozine, imaging-resource, photographyblog). The detailed reviews can be accessed by clicking on the site logo in the table header.
|Canon 20D (⇒ rgt)||-||HiRec||-||reviewed||-||2004||1,499||discont.||check|
|Canon M6 (⇒ lft)||-||80/100 Silver||4/5||4.5/5||4/5||2017||779||latest||check|
|Canon M50 (⇒ lft | rgt)||Rec||79/100 Silver||..||..||3.5/5||2018||779||latest||check|
|Canon 77D (⇒ lft | rgt)||..||82/100 Silver||4.5/5||4.5/5||4/5||2017||899||latest||check|
|Canon M100 (⇒ lft | rgt)||Rec||..||4/5||..||3.5/5||2017||499||latest||check|
|Canon M5 (⇒ lft | rgt)||Rec||82/100 Silver||4/5||4.5/5||4/5||2016||979||latest||check|
|Canon M3 (⇒ lft | rgt)||reviewed||75/100||4.5/5||4.5/5||4/5||2015||679||discont.||check|
|Canon 7D II (⇒ lft | rgt)||Rec||84/100 Silver||4/5||5/5||4.5/5||2014||1,799||latest||check|
|Canon 60D (⇒ lft | rgt)||87/100 Rec||79/100 Silver||4/5||5/5||4.5/5||2010||1,399||discont.||check|
|Canon 7D (⇒ lft | rgt)||93/100 HiRec||84/100||4.5/5||5/5||4.5/5||2009||1,699||discont.||check|
|Canon 50D (⇒ lft | rgt)||90/100 HiRec||HiRec||4.5/5||5/5||4.5/5||2008||1,299||discont.||check|
|Canon 40D (⇒ lft | rgt)||90/100 HiRec||HiRec||4.5/5||reviewed||4.5/5||2007||1,299||discont.||check|
|Canon 30D (⇒ lft | rgt)||87/100 HiRec||HiRec||reviewed||reviewed||-||2006||1,399||discont.||check|
|Canon XT (⇒ lft | rgt)||80/100||HiRec||reviewed||reviewed||-||2005||899||discont.||check|
|Canon 10D (⇒ lft | rgt)||-||HiRec||-||reviewed||-||2003||1,999||discont.||check|
|Canon Rebel (⇒ lft | rgt)||-||HiRec||-||reviewed||-||2003||899||discont.||check|
|Nikon D200 (⇒ lft | rgt)||91/100 HiRec||HiRec||reviewed||5/5||-||2005||1,699||discont.||check|
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 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.
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