Canon 5DS R vs Sony A99
The Canon EOS 5DS R and the Sony Alpha SLT-A99 are two professional cameras that were officially introduced, respectively, in February 2015 and September 2012. Both are DSLR (Digital Single Lens Reflex) cameras that are equipped with a full frame sensor. The Canon has a resolution of 50.3 megapixels, whereas the Sony provides 24 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS 5DS R and the Sony Alpha SLT-A99? 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.
An illustration of the physical size and weight of the Canon 5DS R and the Sony A99 is provided in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive perspectives from the front, the top, and the back are available. All width, height and depth dimensions are rounded to the nearest millimeter.
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A99 is notably smaller (7 percent) than the Canon 5DS R. Moreover, the A99 is markedly lighter (13 percent) than the 5DS R. 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. Hence, you might want to study and compare the specifications of available lenses in order to get the full picture of the size and weight of the two camera systems.
The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. If you would like to visualize and compare a different camera combination, you can navigate to the CAM-parator app and make your selection from a broad list of cameras there.
|Canon 5DS R||6.0 in||4.6 in||3.0 in||32.8 oz||700||Y||Feb 2015||3,699|
|Sony A99||5.8 in||4.4 in||3.1 in||28.6 oz||500||Y||Sep 2012||2,799|
|Canon 1D X Mark II||6.2 in||6.6 in||3.3 in||54.0 oz||1210||Y||Feb 2016||5,999|
|Canon 5D Mark IV||5.9 in||4.6 in||3.0 in||31.4 oz||900||Y||Aug 2016||3,499|
|Canon 5DS||6.0 in||4.6 in||3.0 in||32.8 oz||700||Y||Feb 2015||3,699|
|Canon 5D Mark III||6.0 in||4.6 in||3.0 in||33.5 oz||950||Y||Mar 2012||3,499|
|Canon 6D||5.7 in||4.4 in||2.8 in||27.2 oz||1090||Y||Sep 2012||2,099|
|Canon 5D Mark II||6.0 in||4.5 in||3.0 in||30.0 oz||850||Y||Sep 2008||3,499|
|Canon 5D||6.0 in||4.4 in||3.0 in||31.6 oz||400||Y||Aug 2005||3,299|
|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 A9 II||5.1 in||3.8 in||3.0 in||23.9 oz||690||Y||Oct 2019||4,499|
|Sony A99 II||5.6 in||4.1 in||3.0 in||29.9 oz||490||Y||Sep 2016||3,199|
|Sony A77||5.6 in||4.1 in||3.2 in||25.8 oz||470||Y||Aug 2011||1,399|
|Sony A850||6.1 in||4.6 in||3.2 in||31.6 oz||880||Y||Aug 2009||1,999|
|Sony A900||6.1 in||4.6 in||3.2 in||31.6 oz||880||Y||Sep 2008||2,999|
|Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.|
Any camera decision will naturally be influenced heavily by the price. 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 A99 was launched at a somewhat lower price (by 24 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.
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 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 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. The sensor area in the A99 is 1 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 50.3MP, the 5DS R offers a higher resolution than the A99 (24MP), but the 5DS R has smaller individual pixels (pixel pitch of 4.14μm versus 5.96μm for the A99). However, the 5DS R is a much more recent model (by 2 years and 4 months) than the A99, and its sensor will have benefitted from technological advances during this time that enhance the light gathering capacity of its pixels. Coming back to sensor resolution, it should be mentioned that the 5DS R has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
The resolution advantage of the Canon 5DS R implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the 5DS R for good quality output (200 dots per inch) amounts to 43.4 x 29 inches or 110.3 x 73.6 cm, for very good quality (250 dpi) 34.8 x 23.2 inches or 88.3 x 58.8 cm, and for excellent quality (300 dpi) 29 x 19.3 inches or 73.6 x 49 cm. The corresponding values for the Sony A99 are 30 x 20 inches or 76.2 x 50.8 cm for good quality, 24 x 16 inches or 61 x 40.6 cm for very good quality, and 20 x 13.3 inches or 50.8 x 33.9 cm for excellent quality prints.
The Canon EOS 5DS R has a native sensitivity range from ISO 100 to ISO 6400, which can be extended to ISO 50-12800. The corresponding ISO settings for the Sony Alpha SLT-A99 are ISO 100 to ISO 25600, with the possibility to increase the ISO range to 50-25600.
Consistent information on actual sensor performance is available from DXO Mark for many cameras. 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 Overall DXO ratings for the two cameras under consideration are close, suggesting that they provide similar imaging performance. The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.
| DXO |
|Canon 5DS R||Full Frame||50.3||8688||5792||1080/30p||24.6||12.4||2308||86|
|Sony A99||Full Frame||24.0||6000||4000||1080/60p||25.0||14.0||1555||89|
|Canon 1D X Mark II||Full Frame||20.0||5472||3648||4K/60p||24.1||13.5||3207||88|
|Canon 5D Mark IV||Full Frame||30.1||6720||4480||4K/30p||24.8||13.6||2995||91|
|Canon 5DS||Full Frame||50.3||8688||5792||1080/30p||24.7||12.4||2381||87|
|Canon 5D Mark III||Full Frame||22.1||5760||3840||1080/30p||24.0||11.7||2293||81|
|Canon 6D||Full Frame||20.0||5472||3648||1080/30p||23.8||12.1||2340||82|
|Canon 5D Mark II||Full Frame||21.0||5616||3744||1080/30p||23.7||11.9||1815||79|
|Canon 5D||Full Frame||12.7||4368||2912||none||22.9||11.1||1368||71|
|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 A9 II||Full Frame||24.0||6000||4000||4K/30p||25.0||14.0||3434||93|
|Sony A99 II||Full Frame||42.2||7952||5304||4K/30p||25.4||13.4||2317||92|
|Sony A850||Full Frame||24.4||6048||4032||none||23.8||12.2||1415||79|
|Sony A900||Full Frame||24.4||6048||4032||none||23.7||12.3||1431||79|
Many modern cameras are not only capable of taking still images, but also of capturing video footage. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, but the A99 provides a faster frame rate than the 5DS R. It can shoot movie footage at 1080/60p, while the Canon is limited to 1080/30p.
Beyond body and sensor, cameras can and do differ across a range of features. For example, the A99 has an electronic viewfinder (2359k 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 viewfinders of both cameras offer the same field of view (100%), as well as the same magnification (0.71x). The following table reports on some other key feature differences and similarities of the Canon 5DS R, the Sony A99, and comparable cameras.
|Canon 5DS R||optical||Y||3.2||1040||fixed||n||1/8000s||5.0||n||n|
|Canon 1D X Mark II||optical||Y||3.2||1620||fixed||Y||1/8000s||16.0||n||n|
|Canon 5D Mark IV||optical||Y||3.2||1620||fixed||Y||1/8000s||7.0||n||n|
|Canon 5D Mark III||optical||Y||3.2||1040||fixed||n||1/8000s||6.0||n||n|
|Canon 5D Mark II||optical||Y||3.0||920||fixed||n||1/8000s||3.9||n||n|
|Sony A9 II||3686||n||3.0||1440||tilting||Y||1/8000s||10.0||n||Y|
|Sony A99 II||2400||Y||3.0||1229||full-flex||n||1/8000s||12.0||n||Y|
One feature that differentiates the A99 and the 5DS R is in-body image stabilization (IBIS). The A99 reduces the risk of handshake-induced blur with all attached lenses, while the 5DS R offers no blur reduction with lenses that themselves do not provide optical image stabilization.The A99 has an articulated screen that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in taking selfies. In contrast, the 5DS R does not have a selfie-screen.
The Canon 5DS R 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 5DS R writes its imaging data to Compact Flash or SDXC cards, while the A99 uses SDXC or Memory Stick PRO Duo cards. Both cameras feature dual card slots, which can be very useful in case a memory card fails. Both cameras can use UHS-I cards, which provide for Ultra High Speed data transfer of up to 104 MB/s.
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 5DS R and Sony Alpha SLT-A99 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
| NFC |
|Canon 5DS R||Y||mono||mono||Y||-||mini||3.0||-||-||-|
|Canon 1D X Mark II||Y||mono||mono||Y||Y||mini||3.0||-||-||-|
|Canon 5D Mark IV||Y||mono||mono||Y||Y||mini||3.0||Y||Y||-|
|Canon 5D Mark III||Y||mono||mono||Y||Y||mini||2.0||-||-||-|
|Canon 5D Mark II||Y||mono||mono||Y||-||mini||2.0||-||-||-|
|Sony A9 II||Y||stereo||mono||Y||Y||micro||3.1||Y||Y||Y|
|Sony A99 II||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||Y|
It is notable that the A99 has a headphone jack, which makes it possible to attach external headphones and monitor the quality of sound during the recording process. The 5DS R lacks such a headphone port.
Both cameras feature a PC Sync terminal to control professional strobe lights, which will be appreciated by studio photographers.
Travel and landscape photographers will find it useful that the A99 has an internal geolocalization sensor and can record GPS coordinates in its EXIF data.
The 5DS R is a recent model that features in the current product line-up of Canon. In contrast, the A99 has been discontinued (but can be found pre-owned on eBay). As a replacement in the same line of cameras, the A99 was succeeded by the Sony A99 II. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Canon and Sony websites.
So what is the bottom line? Is there a clear favorite between the Canon 5DS R and the Sony A99? Which camera is better? A synthesis of the relative strong points of each of the models is listed below.
Arguments in favor of the Canon EOS 5DS R:
- More detail: Offers more megapixels (50.3 vs 24MP) with a 45% higher linear resolution.
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- Better low-light sensitivity: Requires less light for good images (0.6 stops ISO advantage).
- Brighter framing: Features an optical viewfinder for clear, lag-free composition.
- Larger screen: Has a bigger rear LCD (3.2" vs 3.0") for image review and settings control.
- Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
- Longer lasting: Can take more shots (700 versus 500) on a single battery charge.
- Faster data transfer: Supports a more advanced USB protocol (3.0 vs 2.0).
- More modern: Reflects 2 years and 4 months of technical progress since the A99 launch.
Reasons to prefer the Sony Alpha SLT-A99:
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- More dynamic range: Captures a broader range of light and dark details (1.6 EV of extra DR).
- Better video: Provides higher movie framerates (1080/60p versus 1080/30p).
- Better sound control: Has a headphone port that enables audio monitoring while recording.
- 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 full-flex screen for odd-angle shots in portrait or landscape orientation.
- More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
- Faster burst: Shoots at higher frequency (6 vs 5 flaps/sec) to capture the decisive moment.
- Less heavy: Has a lower weight (by 118g or 13 percent) and is thus easier to take along.
- Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
- Easier geotagging: Features an internal GPS sensor to log localization data.
- More affordable: Was released into a lower priced segment (24 percent cheaper at launch).
- More heavily discounted: Has been around for much longer (launched in September 2012).
If the number of relative strengths (bullet points above) is taken as a guide, the A99 is the clear winner of the contest (14 : 9 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. A professional sports photographer will view the differences between cameras in a way that diverges from the perspective of a street photog, and a person interested in family portraits has distinct needs from a landscape 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 5DS R and the Sony A99 place the cameras among the top in their class? Find out in the latest Best DSLR Camera listing whether the two cameras rank among the cream of the crop.
In any case, while the comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the 5DS R or the A99. 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 why hands-on reviews by experts are important. The following table reports the overall ratings of the cameras as published by some of the major camera 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 5DS R||+||83/100||5/5||5/5||4.5/5||Feb 2015||3,699|
|Sony A99||..||84/100||4.5/5||o||4.5/5||Sep 2012||2,799|
|Canon 1D X Mark II||..||89/100||4.5/5||5/5||4.5/5||Feb 2016||5,999|
|Canon 5D Mark IV||+ +||87/100||4.5/5||5/5||4.5/5||Aug 2016||3,499|
|Canon 5DS||+||83/100||4.5/5||5/5||4.5/5||Feb 2015||3,699|
|Canon 5D Mark III||+ +||82/100||4.5/5||5/5||4.5/5||Mar 2012||3,499|
|Canon 6D||+ +||83/100||4.5/5||4.5/5||4.5/5||Sep 2012||2,099|
|Canon 5D Mark II||91/100||79/100||4/5||5/5||..||Sep 2008||3,499|
|Canon 5D||88/100||+ +||o||o||..||Aug 2005||3,299|
|Nikon D850||+ +||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 A9 II||..||90/100||5/5||..||5/5||Oct 2019||4,499|
|Sony A99 II||..||85/100||4.5/5||4.5/5||4.5/5||Sep 2016||3,199|
|Sony A77||91/100||81/100||..||4.5/5||5/5||Aug 2011||1,399|
|Sony A850||..||75/100||..||4/5||4.5/5||Aug 2009||1,999|
|Sony A900||+ +||+ +||4.5/5||4/5||5/5||Sep 2008||2,999|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
The above review scores should be interpreted with care, 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 rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. It should also be noted that some of the review sites have over time altered the way they render their verdicts.
Other camera comparisons
Did this review help to inform your camera decision process? If you would like to see a different side-by-side camera review, just make a corresponding selection in the search boxes below. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.
Specifications: Canon 5DS R vs Sony A99
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 5DS R||Sony A99|
|Camera Type||Digital single lens reflex||Digital single lens reflex|
|Camera Lens||Canon EF mount lenses||Sony A mount lenses|
|Launch Date||February 2015||September 2012|
|Launch Price||USD 3,699||USD 2,799|
|Sensor Specs||Canon 5DS R||Sony A99|
|Sensor Format||Full Frame Sensor||Full Frame Sensor|
|Sensor Size||36.0 x 24.0 mm||35.8 x 23.8 mm|
|Sensor Area||864 mm2||852.04 mm2|
|Sensor Diagonal||43.3 mm||43 mm|
|Sensor Resolution||50.3 Megapixels||24 Megapixels|
|Image Resolution||8688 x 5792 pixels||6000 x 4000 pixels|
|Pixel Pitch||4.14 μm||5.96 μm|
|Pixel Density||5.82 MP/cm2||2.82 MP/cm2|
|Moiré control||no AA filter||Anti-Alias filter|
|Movie Capability||1080/30p Video||1080/60p Video|
|ISO Setting||100 - 6,400 ISO||100 - 25,600 ISO|
|ISO Boost||50 - 12,800 ISO||50 - 25,600 ISO|
|Image Processor||DIGIC 6 (Dual)||BIONZ X|
|DXO Sensor Quality (score)||86||89|
|DXO Color Depth (bits)||24.6||25.0|
|DXO Dynamic Range (EV)||12.4||14.0|
|DXO Low Light (ISO)||2308||1555|
|Screen Specs||Canon 5DS R||Sony A99|
|Viewfinder Type||Optical viewfinder||Electronic viewfinder|
|Viewfinder Field of View||100%||100%|
|Viewfinder Resolution||2359k dots|
|Top-Level Screen||Control Panel||Control Panel|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.2inch||3.0inch|
|LCD Resolution||1040k dots||1229k dots|
|LCD Attachment||Fixed screen||Fully flexible screen|
|Shooting Specs||Canon 5DS R||Sony A99|
|Focus System||Phase-detect AF||Phase-detect AF|
|Manual Focusing Aid||no Peaking Feature||Focus Peaking|
|Max Shutter Speed (mechanical)||1/8000s||1/8000s|
|Continuous Shooting||5 shutter flaps/s||6 shutter flaps/s|
|Time-Lapse Photography||Intervalometer built-in||no Intervalometer|
|Image Stabilization||Lens stabilization only||In-body stabilization|
|Fill Flash||no On-Board Flash||no On-Board Flash|
|Storage Medium||CF or SDXC cards||MS or SDXC cards|
|Second Storage Option||Dual card slots||Dual card slots|
|UHS card support||UHS-I||UHS-I|
|Connectivity Specs||Canon 5DS R||Sony A99|
|Studio Flash||PC Sync socket||PC Sync socket|
|USB Connector||USB 3.0||USB 2.0|
|HDMI Port||mini HDMI||mini HDMI|
|Microphone Port||External MIC port||External MIC port|
|Headphone Socket||no Headphone port||Headphone port|
|Wifi Support||no Wifi||no Wifi|
|Geotagging||no internal GPS||GPS built-in|
|Body Specs||Canon 5DS R||Sony A99|
|Environmental Sealing||Weathersealed body||Weathersealed body|
|Battery Life (CIPA)||700 shots per charge||500 shots per charge|
152 x 116 x 76 mm
(6.0 x 4.6 x 3.0 in)
147 x 111 x 78 mm
(5.8 x 4.4 x 3.1 in)
|Camera Weight||930 g (32.8 oz)||812 g (28.6 oz)|
Did you notice an error on this page? If so, please get in touch, so that we can correct the information.