Sony A7R II versus Canon 5DS R
The Sony Alpha A7R II and the Canon EOS 5DS R are two digital cameras that were officially introduced, respectively, in June 2015 and February 2015. The A7R II is a mirrorless interchangeable lens camera, while the 5DS R is a DSLR. Both cameras are equipped with a full frame sensor. The Sony has a resolution of 42.2 megapixel, whereas the Canon provides 50.3 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: Sony A7R II vs Canon 5DS R
An illustration of the physical size and weight of the Sony A7R II and the Canon 5DS R 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 A7R II – represents the basis or 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 5DS R is considerably larger (45 percent) than the Sony A7R II. Moreover, the 5DS R is substantially heavier (49 percent) than the A7R II. 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. Both cameras have similarly sized sensors, but DSLRs have a larger flange-to-focal plane distance than mirrorless cameras, which imposes contraints on the optical engineering process and generally leads to bigger and heavier lenses. You can find an overview of optics for the two cameras in the Sony FE Lens Catalog (A7R II) and the Canon EF Lens Catalog (5DS R). Mirrorless cameras, such as the Sony A7R II, have moreover the advantage that they have a relatively short flange to focal plane distance and can thus use many lenses from other systems via adapters.
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|
|Sony A7R II»||5.0 in||3.8 in||2.4 in||22.0 oz||290||Y||Jun 2015||3,199||-|
|Canon 5DS R«||6.0 in||4.6 in||3.0 in||32.8 oz||700||Y||Feb 2015||3,699|
|Canon 6D Mark II« »||5.7 in||4.4 in||3.0 in||27.0 oz||1200||Y||Jun 2017||1,999|
|Canon 5D Mark IV« »||5.9 in||4.6 in||3.0 in||31.4 oz||900||Y||Aug 2016||3,499|
|Canon 1D X Mark II« »||6.2 in||6.6 in||3.3 in||54.0 oz||1210||Y||Feb 2016||5,999|
|Canon 5DS« »||6.0 in||4.6 in||3.0 in||32.8 oz||700||Y||Feb 2015||3,699|
|Nikon D850« »||5.7 in||4.9 in||3.1 in||35.5 oz||1840||Y||Jul 2017||3,299|
|Nikon D810« »||5.7 in||4.8 in||3.2 in||34.6 oz||1200||Y||Jun 2014||3,299||-|
|Sony A7 III« »||5.0 in||3.8 in||2.9 in||22.9 oz||610||Y||Feb 2018||1,999|
|Sony A9« »||5.0 in||3.8 in||2.5 in||23.7 oz||650||Y||Apr 2017||4,499|
|Sony A7R III« »||5.0 in||3.8 in||2.9 in||22.9 oz||650||Y||Oct 2017||3,199|
|Sony A99 II« »||5.6 in||4.1 in||3.0 in||29.9 oz||490||Y||Sep 2016||3,199|
|Sony A7S II« »||5.0 in||3.8 in||2.4 in||22.1 oz||370||Y||Sep 2015||2,999|
|Sony A7 II« »||5.0 in||3.8 in||2.4 in||21.1 oz||350||Y||Nov 2014||1,999||-|
|Sony A7R« »||5.0 in||3.7 in||1.9 in||16.4 oz||340||Y||Oct 2013||2,299||-|
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 A7R II was launched at a somewhat lower price (by 14 percent) than the 5DS R, which makes it more attractive for photographers on a tight budget. 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: Sony A7R II vs Canon 5DS R
The imaging sensor is at the core of digital cameras and its size is one of the main determining factors 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. Further, a large sensor camera will give the photographer additional creative options when using shallow depth-of-field to isolate a subject from its background. On the downside, larger sensors tend to be associated with larger, more expensive camera bodies and lenses.
Both cameras under consideration feature a full frame sensor, but their sensors differ slightly in size. They nevertheless have the same format factor of 1.0. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
With 50.3MP, the 5DS R offers a higher resolution than the A7R II (42.2MP), but the 5DS R has smaller individual pixels (pixel pitch of 4.14μm versus 4.52μm for the A7R II). It is noteworthy in this context that the A7R II is a somewhat more recent model (by 4 months) than the 5DS R, and its sensor might have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixel-units. Coming back to sensor resolution, it should be mentioned that neither of the two cameras has an anti-alias filter installed, so they are able to capture all the detail the sensor resolves.
Consistent information on actual sensor performance is available from DXO Mark for most 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 A7R II provides substantially higher image quality than the 5DS R, with an overall score that is 12 points higher. This advantage is based on 1.4 bits higher color depth, 1.5 EV in additional dynamic range, and 0.6 stops in additional low light sensitivity. The adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.
|Sony A7R II»||Full Frame||42.2||7952||5304||4K/30p||26.0||13.9||3434||98|
|Canon 5DS R«||Full Frame||50.3||8688||5792||1080/60p||24.6||12.4||2308||86|
|Canon 6D Mark II« »||Full Frame||26.0||6240||4160||1080/60p||24.4||11.9||2862||85|
|Canon 5D Mark IV« »||Full Frame||30.1||6720||4480||4K/30p||24.8||13.6||2995||91|
|Canon 1D X Mark II« »||Full Frame||20.0||5472||3648||4K/60p||24.1||13.5||3207||88|
|Canon 5DS« »||Full Frame||50.3||8688||5792||1080/60p||24.7||12.4||2381||87|
|Nikon D850« »||Full Frame||45.4||8256||5504||4K/30p||26.4||14.8||2660||100|
|Nikon D810« »||Full Frame||36.2||7360||4912||1080/60p||25.7||14.8||2853||97|
|Sony A7 III« »||Full Frame||24.0||6000||4000||4K/30p||25.0||14.7||3730||96|
|Sony A9« »||Full Frame||24.0||6000||4000||4K/30p||24.9||13.3||3517||92|
|Sony A7R III« »||Full Frame||42.2||7952||5304||4K/30p||26.0||14.7||3523||100|
|Sony A99 II« »||Full Frame||42.2||7952||5304||4K/30p||25.4||13.4||2317||92|
|Sony A7S II« »||Full Frame||12.0||4240||2832||4K/30p||23.6||13.3||2993||85|
|Sony A7 II« »||Full Frame||24.0||6000||4000||1080/60p||24.9||13.6||2449||90|
|Sony A7R« »||Full Frame||36.2||7360||4912||1080/60p||25.6||14.1||2746||95|
Many modern cameras are not only capable of taking still images, but also of capturing video footage. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the A7R II provides a higher video resolution than the 5DS R. It can shoot video footage at 4K/30p, while the Canon is limited to 1080/60p.
Feature comparison: Sony A7R II vs Canon 5DS R
Apart from body and sensor, cameras can and do differ across a range of features. For example, the A7R II has an electronic viewfinder (2400k dots), while the 5DS R 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 following table reports on some other key feature differences and similarities of the Sony A7R II, the Canon 5DS R, and comparable cameras. If you need more detail on the specs, you can find comprehensive listings, for example, in the dpreview camera hub.
|Sony A7R II»||2400||n||3.0||1229||tilting||n||8000||5.0||n||Y|
|Canon 5DS R«||optical||Y||3.2||1040||fixed||n||8000||5.0||n||n|
|Canon 6D Mark II« »||optical||Y||3.0||1040||swivel||Y||4000||6.5||n||n|
|Canon 5D Mark IV« »||optical||Y||3.2||1620||fixed||Y||8000||7.0||n||n|
|Canon 1D X Mark II« »||optical||Y||3.2||1620||fixed||Y||8000||16.0||n||n|
|Canon 5DS« »||optical||Y||3.2||1040||fixed||n||8000||5.0||n||n|
|Nikon D850« »||optical||Y||3.2||2359||tilting||Y||8000||9.0||n||n|
|Nikon D810« »||optical||Y||3.2||1229||fixed||n||4000||5.0||Y||n|
|Sony A7 III« »||2359||n||3.0||922||tilting||Y||8000||10.0||n||Y|
|Sony A9« »||3686||n||3.0||1440||tilting||Y||8000||20.0||n||Y|
|Sony A7R III« »||3686||n||3.0||1440||tilting||Y||8000||10.0||n||Y|
|Sony A99 II« »||2400||Y||3.0||1229||full-flex||n||8000||12.0||n||Y|
|Sony A7S II« »||2400||n||3.0||1229||tilting||n||8000||5.0||n||Y|
|Sony A7 II« »||2400||n||3.0||1230||tilting||n||8000||5.0||n||Y|
|Sony A7R« »||2400||n||3.0||1230||tilting||n||8000||4.0||n||n|
The 5DS R is a current model that online retailers, such as amazon, will have in stock. In contrast, the A7R II has been discontinued (but it can be found pre-owned on eBay). As a replacement in the same line of cameras, the A7R II was succeeded by the Sony Alpha A7R III.
Review summary: Sony A7R II vs Canon 5DS R
So what conclusions can be drawn? Is there a clear favorite between the Sony A7R II and the Canon 5DS R? A synthesis of the relative strong points of each of the models is listed below.
Reasons to prefer the Sony Alpha A7R II:
- Better image quality: Scores substantially higher (12 points) in the DXO overall assessment.
- Richer colors: Generates images with noticeably better colors (1.4 bits more color depth).
- More dynamic range: Captures a larger spectrum of light and dark details (1.5 EV of extra DR).
- Better low-light sensitivity: Requires less light for good images (0.6 stops ISO advantage).
- Better video: Provides higher definition movie capture (4K/30p vs 1080/60p).
- More framing info: Has an electronic viewfinder that displays shooting data.
- More detailed LCD: Has a higher resolution rear screen (1229k vs 1040k dots).
- More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
- More compact: Is smaller (127x96mm vs 152x116mm) and thus needs less room in the bag.
- Less heavy: Is lighter (by 305g or 33 percent) and hence easier to carry around.
- More legacy lens friendly: Can take a broad range of non-native lenses via adapters.
- Sharper images: Has hand-shake reducing image stabilization build-in.
- More affordable: Was introduced into a lower priced segment (14 percent cheaper at launch).
- More modern: Is somewhat more recent (announced 4 months after the 5DS R).
Arguments in favor of the Canon EOS 5DS R:
- More detail: Has more megapixels (50.3 vs 42.2MP), which boosts linear resolution by 9%.
- Brighter framing: Features an optical viewfinder for clear, lag-free composition.
- Easier setting verification: Has a control panel on top to check shooting parameters.
- Larger screen: Has a bigger rear LCD (3.2" vs 3.0") for image review and settings control.
- Longer lasting: Gets more shots (700 versus 290) out of a single battery charge.
- More heavily discounted: Has been on the market for longer (launched in February 2015).
If the count of individual advantages (bullet points above) is taken as a guide, the A7R II is the clear winner of the match-up (14 : 6 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 specs-based evaluation of cameras is instructive in revealing their potential as photographic tools, it remains incomplete and does no justice, for example, to the way the A7R II or the 5DS R handle or 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 where reviews by experts come in. 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). You can find the full text of the reviews by clicking on the site logo in the table header.
|Sony A7R II»||HiRec||90/100||5/5||4.5/5||5/5||Jun 2015||3,199||-|
|Canon 5DS R«||Rec||83/100||5/5||5/5||4.5/5||Feb 2015||3,699|
|Canon 6D Mark II« »||Rec||80/100||4.5/5||4/5||4/5||Jun 2017||1,999|
|Canon 5D Mark IV« »||HiRec||87/100||4.5/5||5/5||4.5/5||Aug 2016||3,499|
|Canon 1D X Mark II« »||-||89/100||4.5/5||5/5||4.5/5||Feb 2016||5,999|
|Canon 5DS« »||Rec||83/100||4.5/5||5/5||4.5/5||Feb 2015||3,699|
|Nikon D850« »||HiRec||89/100||4.5/5||5/5||5/5||Jul 2017||3,299|
|Nikon D810« »||-||86/100||5/5||4.5/5||4.5/5||Jun 2014||3,299||-|
|Sony A7 III« »||HiRec||89/100||5/5||-||5/5||Feb 2018||1,999|
|Sony A9« »||HiRec||89/100||5/5||5/5||5/5||Apr 2017||4,499|
|Sony A7R III« »||HiRec||90/100||4.5/5||5/5||5/5||Oct 2017||3,199|
|Sony A99 II« »||-||85/100||4.5/5||4.5/5||4.5/5||Sep 2016||3,199|
|Sony A7S II« »||Rec||-||4.5/5||5/5||5/5||Sep 2015||2,999|
|Sony A7 II« »||Rec||82/100||4.5/5||5/5||5/5||Nov 2014||1,999||-|
|Sony A7R« »||HiRec||82/100||4.5/5||5/5||5/5||Oct 2013||2,299||-|
The review scores listed above should be treated with care, though. The ratings are only valid when refering to cameras in the same category and of the same age. Hence, a score should always be seen in the context of the camera's market launch date and its price, and comparisons of ratings among very different cameras or across long time periods have little meaning. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.
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