Canon 5D Mark II versus Sony A7S II
The Canon EOS 5D Mark II and the Sony Alpha 7S II are two professional cameras that were announced, respectively, in September 2008 and September 2015. The 5D Mark II is a DSLR, while the A7S II is a mirrorless interchangeable lens camera. Both cameras are equipped with a full frame sensor. The Canon has a resolution of 21 megapixel, whereas the Sony provides 12 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 5D Mark II vs Sony A7S II
The physical size and weight of the Canon 5D Mark II and the Sony A7S II are illustrated 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. If you prefer, you can also use the toggle button to switch to a comparison in percentage terms (in this case, the camera on the left – the 5D Mark 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 Sony A7S II is notably smaller (30 percent) than the Canon 5D Mark II. Moreover, the A7S II is markedly lighter (26 percent) than the 5D Mark 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 Canon EF Lens Catalog (5D Mark II) and the Sony FE Lens Catalog (A7S II). Mirrorless cameras, such as the A7S II, 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 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 5D Mark II (⇒ rgt)||152 mm||114 mm||75 mm||850 g||850||YES||2008||3,499||discont.||check|
|Sony A7S II (⇒ lft)||127 mm||96 mm||60 mm||627 g||370||YES||2015||2,999||latest||check|
|Canon 6D Mark II (⇒ lft | rgt)||144 mm||111 mm||75 mm||765 g||1200||YES||2017||1,999||latest||check|
|Canon 5D Mark IV (⇒ lft | rgt)||151 mm||116 mm||76 mm||890 g||900||YES||2016||3,499||latest||check|
|Canon 1D X Mark II (⇒ lft | rgt)||158 mm||168 mm||83 mm||1530 g||1210||YES||2016||5,999||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 6D (⇒ lft | rgt)||145 mm||111 mm||71 mm||770 g||1090||YES||2012||2,099||discont.||check|
|Canon 5D Mark III (⇒ lft | rgt)||152 mm||116 mm||76 mm||950 g||950||YES||2012||3,499||discont.||check|
|Canon 7D (⇒ lft | rgt)||148 mm||111 mm||74 mm||860 g||800||YES||2009||1,699||discont.||check|
|Canon 1Ds Mark III (⇒ lft | rgt)||150 mm||160 mm||80 mm||1385 g||1800||YES||2007||7,999||discont.||check|
|Canon 5D (⇒ lft | rgt)||152 mm||113 mm||75 mm||895 g||400||YES||2005||3,299||discont.||check|
|Sony A7 III (⇒ lft | rgt)||127 mm||96 mm||74 mm||650 g||610||YES||2018||1,999||latest||check|
|Sony A99 II (⇒ lft | rgt)||143 mm||104 mm||76 mm||849 g||490||YES||2016||3,199||latest||check|
|Sony A7R II (⇒ lft | rgt)||127 mm||96 mm||60 mm||625 g||290||YES||2015||3,199||discont.||check|
|Sony A7 II (⇒ lft | rgt)||127 mm||96 mm||60 mm||599 g||350||YES||2014||1,999||discont.||check|
|Sony A7S (⇒ lft | rgt)||127 mm||94 mm||48 mm||489 g||380||YES||2014||2,499||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 A7S II was launched at a somewhat lower price (by 14 percent) than the 5D Mark II, 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: Canon 5D Mark II vs Sony A7S II
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. 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 more expensive and lead to bigger and heavier cameras and lenses.
Both cameras under consideration feature a full frame sensor, but their sensors differ slightly in size. The sensor area in the A7S II is 2 percent smaller. 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 21MP, the 5D Mark II offers a higher resolution than the A7S II (12MP), but the 5D Mark II has smaller individual pixels (pixel pitch of 6.41μm versus 8.40μm for the A7S II). Moreover, the A7S II is a somewhat more recent model (by 6 years and 11 months) than the 5D Mark II, and its sensor might have benefitted from technological advances during this time that enhance the light gathering capacity of its pixels.
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 consideration, the A7S II has a markedly higher DXO score than the 5D Mark II (overall score 6 points higher), which will translate into better image quality. The advantage is based on 0.099999999999998 bits lower color depth, 1.4 EV in additional dynamic range, and 0.7 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.
|Canon 5D Mark II (⇒ rgt)||Full Frame||21.0||5616||3744||1080/30p||23.7||11.9||1815||79|
|Sony A7S II (⇒ lft)||Full Frame||12.0||4240||2832||4K/30p||23.6||13.3||2993||85|
|Canon 6D Mark II (⇒ lft | rgt)||Full Frame||26.0||6240||4160||1080/60p||24.4||11.9||2862||85|
|Canon 5D Mark IV (⇒ lft | rgt)||Full Frame||30.1||6720||4480||4K/30p||24.8||13.6||2995||91|
|Canon 1D X Mark II (⇒ lft | rgt)||Full Frame||20.0||5472||3648||4K/60p||24.1||13.5||3207||88|
|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 6D (⇒ lft | rgt)||Full Frame||20.0||5472||3648||1080/30p||23.8||12.1||2340||82|
|Canon 5D Mark III (⇒ lft | rgt)||Full Frame||22.1||5760||3840||1080/30p||24||11.7||2293||81|
|Canon 7D (⇒ lft | rgt)||APS-C||17.9||5184||3456||1080/30p||22.0||11.7||854||66|
|Canon 1Ds Mark III (⇒ lft | rgt)||Full Frame||21.0||5616||3744||no||24.0||12.0||1663||80|
|Canon 5D (⇒ lft | rgt)||Full Frame||12.7||4368||2912||no||22.9||11.1||1368||71|
|Sony A7 III (⇒ lft | rgt)||Full Frame||24.0||6000||4000||4K/30p||25.0||14.7||3730||96|
|Sony A99 II (⇒ lft | rgt)||Full Frame||42.2||7952||5304||4K/30p||25.4||13.4||2317||92|
|Sony A7R II (⇒ lft | rgt)||Full Frame||42.2||7952||5304||4K/30p||26.0||13.9||3434||98|
|Sony A7 II (⇒ lft | rgt)||Full Frame||24.0||6000||4000||1080/60p||24.9||13.6||2449||90|
|Sony A7S (⇒ lft | rgt)||Full Frame||12.0||4240||2832||1080/60p||23.9||13.2||3702||87|
Many modern cameras cannot only take still pictures, but also record videos. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, but the A7S II provides a better video resolution than the 5D Mark II. It can shoot movie footage at 4K/30p, while the Canon is limited to 1080/30p.
Feature comparison: Canon 5D Mark II vs Sony A7S II
Apart from body and sensor, cameras can and do differ across a variety of features. For example, the A7S II has an electronic viewfinder (2400k dots), while the 5D Mark II 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 table below summarizes some of the other core capabilities of the Canon 5D Mark II and Sony A7S II in connection with corresponding information for a sample of similar cameras. If you need more detail on the specs, you can find comprehensive listings, for example, in the dpreview camera hub.
|Canon 5D Mark II (⇒ rgt)||optical||YES||3.0||920||fixed||no||8000||3.9||no||no|
|Sony A7S II (⇒ lft)||2400||no||3.0||1229||tilting||no||8000||5.0||no||YES|
|Canon 6D Mark II (⇒ lft | rgt)||optical||YES||3.0||1040||swivel||YES||4000||6.5||no||no|
|Canon 5D Mark IV (⇒ lft | rgt)||optical||YES||3.2||1620||fixed||YES||8000||7.0||no||no|
|Canon 1D X Mark II (⇒ lft | rgt)||optical||YES||3.2||1620||fixed||YES||8000||16.0||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 6D (⇒ lft | rgt)||optical||YES||3.0||1040||fixed||no||4000||4.5||no||no|
|Canon 5D Mark III (⇒ lft | rgt)||optical||YES||3.2||1040||fixed||no||8000||6.0||no||no|
|Canon 7D (⇒ lft | rgt)||optical||YES||3.0||920||fixed||no||8000||8.0||12||no|
|Canon 1Ds Mark III (⇒ lft | rgt)||optical||YES||3.0||230||fixed||no||8000||5.0||no||no|
|Canon 5D (⇒ lft | rgt)||optical||YES||2.5||230||fixed||no||8000||3.0||no||no|
|Sony A7 III (⇒ lft | rgt)||2359||no||3.0||922||tilting||YES||8000||10||no||YES|
|Sony A99 II (⇒ lft | rgt)||2400||YES||3.0||1229||full-flex||no||8000||12.0||no||YES|
|Sony A7R II (⇒ lft | rgt)||2400||no||3.0||1229||tilting||no||8000||5.0||no||YES|
|Sony A7 II (⇒ lft | rgt)||2400||no||3.0||1230||tilting||no||8000||5.0||no||YES|
|Sony A7S (⇒ lft | rgt)||2400||no||3.0||921||tilting||no||8000||5.0||no||no|
The A7S II is a current model that online retailers, such as amazon, will have in stock. In contrast, the 5D Mark II has been discontinued (but it can be found pre-owned on eBay). As a replacement in the same line of cameras, the 5D Mark II was succeeded by the Canon 5D Mark III.
Review summary: Canon 5D Mark II vs Sony A7S II
So what conclusions can be drawn? Which of the two cameras – the Canon 5D Mark II or the Sony A7S II – has the upper hand? A synthesis of the relative strong points of each of the models is listed below.
Reasons to prefer the Canon EOS 5D Mark II:
- More detail: Offers more megapixels (21 vs 12MP) with a 32% higher linear resolution.
- Brighter framing: Features an optical viewfinder for clear, lag-free composition.
- Easier setting verification: Has an LCD display on top to control shooting parameters.
- Longer lasting: Can take more shots (850 versus 370) on a single battery charge.
- More heavily discounted: Has been available for much longer (launched in September 2008).
Advantages of the Sony Alpha 7S II:
- Better image quality: Scores markedly higher (6 points) in the DXO overall evaluation.
- More dynamic range: Captures a broader range of light and dark details (1.4 EV of extra DR).
- Better low-light sensitivity: Can shoot in dim conditions (0.7 stops ISO advantage).
- Better video: Provides higher definition movie capture (4K/30p vs 1080/30p).
- More framing info: Has an electronic viewfinder that displays shooting data.
- More detailed LCD: Has a higher resolution rear screen (1229k vs 920k dots).
- More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
- Faster burst: Shoots at higher frequency (5 vs 3.9 flaps/sec) to capture the decisive moment.
- More compact: Is smaller (127x96mm vs 152x114mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 223g or 26 percent) and is thus easier to take along.
- More legacy lens friendly: Can use many non-native lenses via adapters.
- Sharper images: Has stabilization technology build-in to reduce the impact of hand-shake.
- More affordable: Was released into a lower priced segment (14 percent cheaper at launch).
- More modern: Reflects 6 years and 11 months of technical progress since the 5D Mark II launch.
If the count of relative strengths (bullet points above) is taken as a measure, the A7S II is the clear winner of the contest (14 : 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 technical specifications can provide a useful overview of the capabilities of different cameras, it remains incomplete and does no justice, for example, to the way the 5D Mark II or the A7S II 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 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 5D Mark II (⇒ rgt)||91/100||79/100 HiRec||4/5||5/5||-||2008||3,499||discont.||check|
|Sony A7S II (⇒ lft)||Rec||-||4.5/5||5/5||5/5||2015||2,999||latest||check|
|Canon 6D Mark II (⇒ lft | rgt)||Rec||80/100||4.5/5||4/5||4/5||2017||1,999||latest||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 1D X Mark II (⇒ lft | rgt)||-||89/100 Gold||4.5/5||5/5||4.5/5||2016||5,999||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 6D (⇒ lft | rgt)||HiRec||83/100 Silver||4.5/5||4.5/5||4.5/5||2012||2,099||discont.||check|
|Canon 5D Mark III (⇒ lft | rgt)||HiRec||82/100 Gold||4.5/5||5/5||4.5/5||2012||3,499||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 1Ds Mark III (⇒ lft | rgt)||-||HiRec||4.5/5||-||-||2007||7,999||discont.||check|
|Canon 5D (⇒ lft | rgt)||88/100||HiRec||reviewed||reviewed||-||2005||3,299||discont.||check|
|Sony A7 III (⇒ lft | rgt)||HiRec||89/100 Gold||5/5||..||5/5||2018||1,999||latest||check|
|Sony A99 II (⇒ lft | rgt)||-||85/100 Silver||4.5/5||4.5/5||4.5/5||2016||3,199||latest||check|
|Sony A7R II (⇒ lft | rgt)||HiRec||90/100 Gold||5/5||4.5/5||5/5||2015||3,199||discont.||check|
|Sony A7 II (⇒ lft | rgt)||Rec||82/100 Silver||4.5/5||5/5||5/5||2014||1,999||discont.||check|
|Sony A7S (⇒ lft | rgt)||-||86/100 Gold||4.5/5||4.5/5||5/5||2014||2,499||discont.||check|
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. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. 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 are interested in seeing how other cameras pair up, just make your choice using the following search menu. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting. If the camera you are interested in is not available, kindly get in touch, and I will try to add information on that model to the database.
- Canon 100D vs Canon 1300D
- Canon 1D X Mark II vs Leica CL
- Canon 50D vs Panasonic FZ2500
- Canon 6D vs Leica S-E Typ 006
- Canon T2i vs Canon 750D
- Fujifilm X100F vs Sony RX10 II
- Leica M9 vs Fujifilm X-A10
- Nikon D200 vs Sony A7 III
- Nikon D5500 vs Fujifilm X-A2
- Panasonic LX10 vs Leica X-U Typ 113
- Sony A7R II vs Nikon D810
- Sony A99 vs Sony A7S II