Canon RP vs Sony A99
The Canon EOS RP and the Sony Alpha SLT-A99 are two digital cameras that were revealed to the public, respectively, in February 2019 and September 2012. The Canon RP is a mirrorless interchangeable lens camera, while the A99 is a DSLR. Both cameras are equipped with a full frame sensor. The Canon has a resolution of 26.2 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 RP 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 RP and the Sony A99 is provided in the side-by-side display below. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. 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 considerably larger (44 percent) than the Canon RP. Moreover, the A99 is substantially heavier (67 percent) than the Canon RP. It is noteworthy in this context that the A99 is splash and dust-proof, while the Canon RP does not feature any corresponding weather-sealing.
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.
Concerning battery life, the Canon RP gets 250 shots out of its LP-E17 battery, while the A99 can take 500 images on a single charge of its NP-FM500H power pack. The power pack in the Canon RP can be charged via the USB port, so that it is not always necessary to take the battery charger along when travelling.
The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. 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.
|1.||Canon RP||133 mm||85 mm||70 mm||485 g||250||n||Feb 2019||1,299|
|2.||Sony A99||147 mm||111 mm||78 mm||812 g||500||Y||Sep 2012||2,799|
|3.||Canon T8i||131 mm||103 mm||76 mm||515 g||800||n||Feb 2020||749|
|4.||Canon SL3||122 mm||93 mm||70 mm||449 g||1070||n||Apr 2019||599|
|5.||Canon T7||129 mm||101 mm||78 mm||475 g||500||n||Feb 2018||449|
|6.||Canon R||139 mm||98 mm||84 mm||660 g||370||Y||Sep 2018||2,299|
|7.||Canon 77D||131 mm||100 mm||76 mm||540 g||600||n||Feb 2017||899|
|8.||Canon SL2||122 mm||93 mm||70 mm||453 g||650||n||Jun 2017||549|
|9.||Canon T7i||131 mm||100 mm||76 mm||532 g||600||n||Feb 2017||749|
|10.||Canon M5||116 mm||89 mm||61 mm||427 g||295||n||Sep 2016||979|
|11.||Canon T6i||132 mm||101 mm||78 mm||555 g||440||n||Feb 2015||749|
|12.||Leica TL2||134 mm||69 mm||33 mm||399 g||250||n||Jul 2017||1,950|
|13.||Sony A9 II||129 mm||96 mm||76 mm||678 g||690||Y||Oct 2019||4,499|
|14.||Sony A99 II||143 mm||104 mm||76 mm||849 g||490||Y||Sep 2016||3,199|
|15.||Sony A77||143 mm||104 mm||81 mm||732 g||470||Y||Aug 2011||1,399|
|16.||Sony A850||156 mm||117 mm||82 mm||895 g||880||Y||Aug 2009||1,999|
|17.||Sony A900||156 mm||117 mm||82 mm||895 g||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.|
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 Canon RP was launched at a markedly lower price (by 54 percent) than the A99, 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.
The size of the imaging sensor is a crucial determinant 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 are more costly to manufacture and tend to 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 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.
Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors.
With 26.2MP, the Canon RP offers a slightly higher resolution than the A99 (24MP), but the Canon RP has smaller individual pixels (pixel pitch of 5.74μm versus 5.96μm for the A99). However, the Canon RP is a much more recent model (by 6 years and 5 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.
The Canon RP has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.
The Canon EOS RP has a native sensitivity range from ISO 100 to ISO 40000, which can be extended to ISO 50-102400. 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 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"). The adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.
| DXO |
|1.||Canon RP||Full Frame||26.2||6240||4160||4K/30p||..||..||..||..|
|2.||Sony A99||Full Frame||24.0||6000||4000||1080/60p||25.0||14.0||1555||89|
|6.||Canon R||Full Frame||30.1||6720||4480||4K/30p||24.5||13.5||2742||89|
|13.||Sony A9 II||Full Frame||24.0||6000||4000||4K/30p||25.0||14.0||3434||93|
|14.||Sony A99 II||Full Frame||42.2||7952||5304||4K/30p||25.4||13.4||2317||92|
|16.||Sony A850||Full Frame||24.4||6048||4032||none||23.8||12.2||1415||79|
|17.||Sony A900||Full Frame||24.4||6048||4032||none||23.7||12.3||1431||79|
Many modern cameras cannot only take still pictures, but also record videos. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the Canon RP provides a higher video resolution than the A99. It can shoot video footage at 4K/30p, while the Sony is limited to 1080/60p.
Beyond body and sensor, cameras can and do differ across a range of features. The two cameras under consideration are similar with respect to both having an electronic viewfinder. However, the one in the Canon RP offers a slightly higher resolution than the one in the A99 (2360k vs 2359k dots). The adjacent table lists some of the other core features of the Canon RP and Sony A99 along with similar information for a selection of comparators.
|13.||Sony A9 II||3686||n||3.0||1440||tilting||Y||1/8000s||10.0||n||Y|
|14.||Sony A99 II||2400||Y||3.0||1229||full-flex||n||1/8000s||12.0||n||Y|
One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The Canon RP has a touchscreen, while the A99 has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.Both cameras have an articulated rear screen that can be turned to be front-facing. This feature will be particularly appreciated by vloggers and photographers who are interested in taking selfies.
The Canon RP 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 Canon RP writes its imaging data to SDXC cards, while the A99 uses SDXC or Memory Stick PRO Duo cards. The A99 features dual card slots, which can be very useful in case a memory card fails. In contrast, the Canon RP only has one slot. The Canon RP supports UHS-II cards (Ultra High Speed data transfer of up to 312 MB/s), while the A99 can use UHS-I cards (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 RP and Sony Alpha SLT-A99 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
| NFC |
|13.||Sony A9 II||Y||stereo||mono||Y||Y||micro||3.1||Y||Y||Y|
|14.||Sony A99 II||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||Y|
It is notable that the Canon RP offers wifi support, while the A99 does not. Wifi can be a very convenient means to transfer image data to an off-camera location.
Studio photographers will appreciate that the Sony A99 (unlike the Canon RP) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
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 Canon RP 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 how do things add up? Is there a clear favorite between the Canon RP and the Sony A99? Which camera is better? The listing below highlights the relative strengths of the two models.
Arguments in favor of the Canon EOS RP:
- Better video: Provides higher definition movie capture (4K/30p vs 1080/60p).
- Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
- Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
- Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
- More compact: Is smaller (133x85mm vs 147x111mm) and thus needs less room in the bag.
- Less heavy: Is lighter (by 327g or 40 percent) and hence easier to carry around.
- Easier travel charging: Can be conveniently charged via its USB port.
- More legacy lens friendly: Can take a broad range of non-native lenses via adapters.
- Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
- Easier wireless transfer: Supports Bluetooth for image sharing without cables.
- Faster buffer clearing: Supports a more advanced SD data transfer standard (UHS-II vs UHS-I).
- More affordable: Was introduced into a lower priced category (54 percent cheaper at launch).
- More modern: Reflects 6 years and 5 months of technical progress since the A99 launch.
Advantages of the Sony Alpha SLT-A99:
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.71x vs 0.70x).
- Easier setting verification: Features a control panel on top to check shooting parameters.
- More detailed LCD: Has a higher resolution rear screen (1229k vs 1040k dots).
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
- Faster burst: Shoots at higher frequency (6 vs 5 flaps/sec) to capture the decisive moment.
- Longer lasting: Gets more shots (500 versus 250) out of a single battery charge.
- Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
- 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.
- Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
- Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
- 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 Canon RP comes out slightly ahead of the A99 (13 : 12 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 wedding photographer will view the differences between cameras in a way that diverges from the perspective of a travel photog, and a person interested in cityscapes has distinct needs from a macro 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 RP and the Sony A99 place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera and Best DSLR Camera listings whether the two cameras rank among the cream of the crop.
In any case, while the comparison of technical specifications can provide a useful overview of the capabilities of different cameras, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the Canon RP 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 adjacent summary-table relays the overall verdicts of several of the most popular camera review sites (amateurphotographer [AP], cameralabs [CL], dpreview [DPR], ephotozine [EPZ], photographyblog [PB]). 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.
|1.||Canon RP||4/5||+||..||4.5/5||4/5||Feb 2019||1,299|
|2.||Sony A99||5/5||..||84/100||4.5/5||4.5/5||Sep 2012||2,799|
|3.||Canon T8i||4.5/5||+||80/100||4/5||3.5/5||Feb 2020||749|
|4.||Canon SL3||..||o||79/100||4/5||4/5||Apr 2019||599|
|5.||Canon T7||..||o||..||3.5/5||3.5/5||Feb 2018||449|
|6.||Canon R||4/5||o||79/100||4.5/5||4/5||Sep 2018||2,299|
|7.||Canon 77D||4.5/5||..||82/100||4.5/5||4/5||Feb 2017||899|
|8.||Canon SL2||4/5||+ +||78/100||4.5/5||4.5/5||Jun 2017||549|
|9.||Canon T7i||4.5/5||..||80/100||4.5/5||4/5||Feb 2017||749|
|10.||Canon M5||4/5||+||82/100||4/5||4/5||Sep 2016||979|
|11.||Canon T6i||5/5||..||75/100||4.5/5||4.5/5||Feb 2015||749|
|12.||Leica TL2||3.5/5||..||..||4/5||4/5||Jul 2017||1,950|
|13.||Sony A9 II||..||..||90/100||5/5||5/5||Oct 2019||4,499|
|14.||Sony A99 II||..||..||85/100||4.5/5||4.5/5||Sep 2016||3,199|
|15.||Sony A77||5/5||91/100||81/100||..||5/5||Aug 2011||1,399|
|16.||Sony A850||3/5||..||75/100||..||4.5/5||Aug 2009||1,999|
|17.||Sony A900||..||+ +||+ +||4.5/5||5/5||Sep 2008||2,999|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
The review scores listed above should be treated with care, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. 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.
Other camera comparisons
Did this review help to inform your camera decision process? In case you would like to check on the differences and similarities of other camera models, just use the search menu below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.
Specifications: Canon RP 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 RP||Sony A99|
|Camera Type||Mirrorless system camera||Digital single lens reflex|
|Camera Lens||Canon RF mount lenses||Sony A mount lenses|
|Launch Date||February 2019||September 2012|
|Launch Price||USD 1,299||USD 2,799|
|Sensor Specs||Canon RP||Sony A99|
|Sensor Format||Full Frame Sensor||Full Frame Sensor|
|Sensor Size||35.9 x 24.0 mm||35.8 x 23.8 mm|
|Sensor Area||861.6 mm2||852.04 mm2|
|Sensor Diagonal||43.2 mm||43 mm|
|Sensor Resolution||26.2 Megapixels||24 Megapixels|
|Image Resolution||6240 x 4160 pixels||6000 x 4000 pixels|
|Pixel Pitch||5.74 μm||5.96 μm|
|Pixel Density||3.01 MP/cm2||2.82 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||4K/30p Video||1080/60p Video|
|ISO Setting||100 - 40,000 ISO||100 - 25,600 ISO|
|ISO Boost||50 - 102,400 ISO||50 - 25,600 ISO|
|Image Processor||DIGIC 8||BIONZ X|
|DXO Sensor Quality (score)||..||89|
|DXO Color Depth (bits)||..||25.0|
|DXO Dynamic Range (EV)||..||14.0|
|DXO Low Light (ISO)||..||1555|
|Screen Specs||Canon RP||Sony A99|
|Viewfinder Type||Electronic viewfinder||Electronic viewfinder|
|Viewfinder Field of View||100%||100%|
|Viewfinder Resolution||2360k dots||2359k dots|
|Top-Level Screen||no Top Display||Control Panel|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0inch||3.0inch|
|LCD Resolution||1040k dots||1229k dots|
|LCD Attachment||Swivel screen||Fully flexible screen|
|Touch Input||Touchscreen||no Touchscreen|
|Shooting Specs||Canon RP||Sony A99|
|Focus System||On-Sensor Phase-detect||Phase-detect AF|
|Manual Focusing Aid||no Peaking Feature||Focus Peaking|
|Max Shutter Speed (mechanical)||1/4000s||1/8000s|
|Continuous Shooting||5 shutter flaps/s||6 shutter flaps/s|
|Shutter Life Expectancy||100 000 actuations||200 000 actuations|
|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||SDXC cards||MS or SDXC cards|
|Second Storage Option||Single card slot||Dual card slots|
|UHS card support||UHS-II||UHS-I|
|Connectivity Specs||Canon RP||Sony A99|
|Studio Flash||no PC Sync||PC Sync socket|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||micro HDMI||mini HDMI|
|Microphone Port||External MIC port||External MIC port|
|Headphone Socket||Headphone port||Headphone port|
|Wifi Support||Wifi built-in||no Wifi|
|Bluetooth Support||Bluetooth built-in||no Bluetooth|
|Geotagging||no internal GPS||GPS built-in|
|Body Specs||Canon RP||Sony A99|
|Environmental Sealing||not weather sealed||Weathersealed body|
|Battery Life (CIPA)||250 shots per charge||500 shots per charge|
|In-Camera Charging||USB charging||no USB charging|
133 x 85 x 70 mm
(5.2 x 3.3 x 2.8 in)
147 x 111 x 78 mm
(5.8 x 4.4 x 3.1 in)
|Camera Weight||485 g (17.1 oz)||812 g (28.6 oz)|
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