Canon 7D versus Canon 5D Mark III
The Canon EOS 7D and the Canon EOS 5D Mark III are two digital cameras that were announced, respectively, in September 2009 and March 2012. Both are DSLR (Digital Single Lens Reflex) cameras that are based on an APS-C (7D) and a full frame (5D Mark III) sensor. The 7D has a resolution of 17.9 megapixel, whereas the 5D Mark III provides 22.1 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 7D vs Canon 5D Mark III
The physical size and weight of the Canon 7D and the Canon 5D Mark III are illustrated in the side-by-side display below. Three successive views from the front, the top, and the rear are shown. All width, height and depth measures are rounded to the nearest millimeter. You can also toggle the display 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 7D – 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 5D Mark III is notably larger (7 percent) than the Canon 7D. Moreover, the 5D Mark III is markedly heavier (10 percent) than the 7D. In this context, it is worth noting that both cameras are splash and dust-proof and can, hence, be used in inclement weather conditions or harsh environments.
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 (as in the 5D Mark III) will tend to go along with bigger and heavier lenses, while more compact options are available for the smaller-sensor camera (7D). You can find a comprehensive overview of suitable optics in the Canon EF Lens Catalog.
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 7D (⇒ rgt)||148 mm||111 mm||74 mm||860 g||800||YES||2009||1,699||discont.||check|
|Canon 5D Mark III (⇒ lft)||152 mm||116 mm||76 mm||950 g||950||YES||2012||3,499||discont.||check|
|Canon 5D Mark IV (⇒ lft | rgt)||151 mm||116 mm||76 mm||890 g||900||YES||2016||3,499||latest||check|
|Canon 5DS R (⇒ lft | rgt)||152 mm||116 mm||76 mm||930 g||700||YES||2015||3,699||latest||check|
|Canon 5DS (⇒ lft | rgt)||152 mm||116 mm||76 mm||930 g||700||YES||2015||3,699||latest||check|
|Canon G3 X (⇒ lft | rgt)||123 mm||77 mm||105 mm||733 g||300||YES||2015||999||latest||check|
|Canon 7D II (⇒ lft | rgt)||149 mm||112 mm||78 mm||910 g||670||YES||2014||1,799||latest||check|
|Canon 70D (⇒ lft | rgt)||139 mm||104 mm||79 mm||755 g||920||YES||2013||1,199||discont.||check|
|Canon 6D (⇒ lft | rgt)||145 mm||111 mm||71 mm||770 g||1090||YES||2012||2,099||discont.||check|
|Canon 60D (⇒ lft | rgt)||145 mm||106 mm||79 mm||755 g||1100||YES||2010||1,399||discont.||check|
|Canon 5D Mark II (⇒ lft | rgt)||152 mm||114 mm||75 mm||850 g||850||YES||2008||3,499||discont.||check|
|Canon 50D (⇒ lft | rgt)||146 mm||108 mm||74 mm||822 g||800||YES||2008||1,299||discont.||check|
|Canon 30D (⇒ lft | rgt)||144 mm||106 mm||74 mm||785 g||750||no||2006||1,399||discont.||check|
|Nikon D7000 (⇒ lft | rgt)||132 mm||105 mm||77 mm||780 g||1050||YES||2010||1,499||discont.||check|
|Nikon D300S (⇒ lft | rgt)||147 mm||115 mm||81 mm||938 g||950||YES||2009||1,799||discont.||check|
|Sony RX10 III (⇒ lft | rgt)||133 mm||94 mm||127 mm||1051 g||420||YES||2016||1,499||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 7D was launched at a markedly lower price (by 51 percent) than the 5D Mark III, 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 7D vs Canon 5D Mark III
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 associated with larger, more expensive camera bodies and lenses.
Of the two cameras under consideration, the Canon 7D features an APS-C sensor and the Canon 5D Mark III a full frame sensor. The sensor area in the 5D Mark III is 160 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.6 and 1.0. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
With 22.1MP, the 5D Mark III offers a higher resolution than the 7D (17.9MP), but the 5D Mark III nevertheless has larger individual pixels (pixel pitch of 6.25μm versus 4.31μm for the 7D) due to its larger sensor. Moreover, the 5D Mark III is a much more recent model (by 2 years and 6 months) than the 7D, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixel-units.
For most 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"). Of the two cameras under consideration, the 5D Mark III offers substantially better image quality than the 7D (overall score 15 points higher). The advantage is based on 2 bits higher color depth, and 1.4 stops in additional low light sensitivity. The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.
|Canon 7D (⇒ rgt)||APS-C||17.9||5184||3456||1080/30p||22.0||11.7||854||66|
|Canon 5D Mark III (⇒ lft)||Full Frame||22.1||5760||3840||1080/30p||24||11.7||2293||81|
|Canon 5D Mark IV (⇒ lft | rgt)||Full Frame||30.1||6720||4480||4K/30p||24.8||13.6||2995||91|
|Canon 5DS R (⇒ lft | rgt)||Full Frame||50.3||8688||5792||1080/60p||24.6||12.4||2308||86|
|Canon 5DS (⇒ lft | rgt)||Full Frame||50.3||8688||5792||1080/60p||24.7||12.4||2381||87|
|Canon G3 X (⇒ lft | rgt)||1-inch||20.0||5472||3648||1080/60p||21.4||12.3||521||63|
|Canon 7D II (⇒ lft | rgt)||APS-C||20.0||5472||3648||1080/60p||22.4||11.8||1082||70|
|Canon 70D (⇒ lft | rgt)||APS-C||20.0||5472||3648||1080/30p||22.5||11.6||926||68|
|Canon 6D (⇒ lft | rgt)||Full Frame||20.0||5472||3648||1080/30p||23.8||12.1||2340||82|
|Canon 60D (⇒ lft | rgt)||APS-C||17.9||5184||3456||1080/30p||22.2||11.5||813||66|
|Canon 5D Mark II (⇒ lft | rgt)||Full Frame||21.0||5616||3744||1080/30p||23.7||11.9||1815||79|
|Canon 50D (⇒ lft | rgt)||APS-C||15.1||4752||3168||no||21.8||11.4||696||63|
|Canon 30D (⇒ lft | rgt)||APS-C||8.2||3504||2336||no||21.5||10.8||736||59|
|Nikon D7000 (⇒ lft | rgt)||APS-C||16.1||4928||3264||10800/24p||23.5||13.9||1167||80|
|Nikon D300S (⇒ lft | rgt)||APS-C||12.2||4288||2848||720/24p||22.5||12.2||787||70|
|Sony RX10 III (⇒ lft | rgt)||1-inch||20.0||5472||3648||4K/30p||23.1||12.6||472||70|
Many modern cameras are not only capable of taking still images, but can also record movies. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, and both provide the same movie specifications (1080/30p).
Feature comparison: Canon 7D vs Canon 5D Mark III
Beyond body and sensor, cameras can and do differ across a range of features. The 7D and the 5D Mark III 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 adjacent table lists some of the other core features of the Canon 7D and Canon 5D Mark III along with similar information for a selection of comparators. The full specs-sheets can be found in the camera manual or, for example, in the dpreview camera hub.
|Canon 7D (⇒ rgt)||optical||YES||3.0||920||fixed||no||8000||8.0||12||no|
|Canon 5D Mark III (⇒ lft)||optical||YES||3.2||1040||fixed||no||8000||6.0||no||no|
|Canon 5D Mark IV (⇒ lft | rgt)||optical||YES||3.2||1620||fixed||YES||8000||7.0||no||no|
|Canon 5DS R (⇒ lft | rgt)||optical||YES||3.2||1040||fixed||no||8000||5.0||no||no|
|Canon 5DS (⇒ lft | rgt)||optical||YES||3.2||1040||fixed||no||8000||5.0||no||no|
|Canon G3 X (⇒ lft | rgt)||no||no||3.2||1620||tilting||YES||2000||5.9||6.8||YES|
|Canon 7D II (⇒ lft | rgt)||optical||YES||3.0||1040||fixed||no||8000||10.0||11||no|
|Canon 70D (⇒ lft | rgt)||optical||YES||3.0||1040||swivel||YES||8000||7.0||12||no|
|Canon 6D (⇒ lft | rgt)||optical||YES||3.0||1040||fixed||no||4000||4.5||no||no|
|Canon 60D (⇒ lft | rgt)||optical||YES||3.0||1040||swivel||no||8000||5.3||13||no|
|Canon 5D Mark II (⇒ lft | rgt)||optical||YES||3.0||920||fixed||no||8000||3.9||no||no|
|Canon 50D (⇒ lft | rgt)||optical||YES||3.0||920||fixed||no||8000||6.3||13||no|
|Canon 30D (⇒ lft | rgt)||optical||YES||2.5||230||fixed||no||8000||5.0||13||no|
|Nikon D7000 (⇒ lft | rgt)||optical||YES||3.0||921||fixed||no||8000||6.0||12||no|
|Nikon D300S (⇒ lft | rgt)||optical||YES||3.0||920||fixed||no||8000||7.0||12||no|
|Sony RX10 III (⇒ lft | rgt)||2359||YES||3.0||1229||tilting||no||2000||14.0||10.8||YES|
Both the 7D and the 5D Mark III have been discontinued, but can regularly be found used on eBay. The 7D was replaced by the Canon 7D Mark II, while the 5D Mark III was followed by the Canon 5D Mark IV.
Review summary: Canon 7D vs Canon 5D Mark III
So what conclusions can be drawn? Is the Canon 7D better than the Canon 5D Mark III or vice versa? A synthesis of the relative strong points of each of the models is listed below.
Advantages of the Canon EOS 7D:
- Faster burst: Shoots at higher frequency (8 vs 6 flaps/sec) to capture the decisive moment.
- Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
- More affordable: Was introduced into a lower priced category (51 percent cheaper at launch).
- More heavily discounted: Has been available for much longer (launched in September 2009).
Arguments in favor of the Canon EOS 5D Mark III:
- More detail: Has more megapixels (22.1 vs 17.9MP), which boosts linear resolution by 11%.
- Better image quality: Scores substantially higher (15 points) in the DXO overall evaluation.
- Richer colors: Generates noticeably more natural colors (2 bits more color depth).
- Better low-light sensitivity: Can shoot in dim conditions (1.4 stops ISO advantage).
- Larger screen: Has a bigger rear LCD (3.2" vs 3.0") for image review and settings control.
- More detailed LCD: Has a higher resolution rear screen (1040k vs 920k dots).
- Longer lasting: Gets more shots (950 versus 800) out of a single battery charge.
- More modern: Reflects 2 years and 6 months of technical progress since the 7D launch.
If the count of relative strengths (bullet points above) is taken as a measure, the 5D Mark III is the clear winner of the contest (8 : 4 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.
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 7D or the 5D Mark III handle or perform in practice. 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 why expert reviews are important. The adjacent table relays the overall verdicts of several of the most popular camera review sites. The detailed reviews can be accessed, respectively, on the websites of cameralabs.com, dpreview.com, ephotozine.com, imaging-resource.com, and photographyblog.com.
|Canon 7D (⇒ rgt)||93/100 HiRec||84/100||4.5/5||5/5||4.5/5||2009||1,699||discont.||check|
|Canon 5D Mark III (⇒ lft)||HiRec||82/100 Gold||4.5/5||5/5||4.5/5||2012||3,499||discont.||check|
|Canon 5D Mark IV (⇒ lft | rgt)||HiRec||87/100 Gold||4.5/5||5/5||4.5/5||2016||3,499||latest||check|
|Canon 5DS R (⇒ lft | rgt)||Rec||83/100 Silver||5/5||5/5||4.5/5||2015||3,699||latest||check|
|Canon 5DS (⇒ lft | rgt)||Rec||83/100 Silver||4.5/5||5/5||4.5/5||2015||3,699||latest||check|
|Canon G3 X (⇒ lft | rgt)||Rec||-||4.5/5||3.5/5||4/5||2015||999||latest||check|
|Canon 7D II (⇒ lft | rgt)||Rec||84/100 Silver||4/5||5/5||4.5/5||2014||1,799||latest||check|
|Canon 70D (⇒ lft | rgt)||HiRec||83/100 Gold||4.5/5||4.5/5||5/5||2013||1,199||discont.||check|
|Canon 6D (⇒ lft | rgt)||HiRec||83/100 Silver||4.5/5||4.5/5||4.5/5||2012||2,099||discont.||check|
|Canon 60D (⇒ lft | rgt)||87/100 Rec||79/100 Silver||4/5||5/5||4.5/5||2010||1,399||discont.||check|
|Canon 5D Mark II (⇒ lft | rgt)||91/100||79/100 HiRec||4/5||5/5||-||2008||3,499||discont.||check|
|Canon 50D (⇒ lft | rgt)||90/100 HiRec||HiRec||4.5/5||5/5||4.5/5||2008||1,299||discont.||check|
|Canon 30D (⇒ lft | rgt)||87/100 HiRec||HiRec||reviewed||reviewed||-||2006||1,399||discont.||check|
|Nikon D7000 (⇒ lft | rgt)||-||80/100 Silver||4.5/5||5/5||4.5/5||2010||1,499||discont.||check|
|Nikon D300S (⇒ lft | rgt)||90/100 HiRec||82/100 HiRec||4/5||5/5||4.5/5||2009||1,799||discont.||check|
|Sony RX10 III (⇒ lft | rgt)||Rec||84/100 Silver||4.5/5||4.5/5||4.5/5||2016||1,499||discont.||check|
The above review scores should be interpreted with care, 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. Also, please note that some of the review sites have changed their methodology and reporting over time.
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