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Sony A7R III vs Canon RP

The Sony Alpha A7R III and the Canon EOS RP are two digital cameras that were announced, respectively, in October 2017 and February 2019. Both the A7R III and the RP are mirrorless interchangeable lens cameras that are equipped with a full frame sensor. The Sony has a resolution of 42.2 megapixels, whereas the Canon provides 26 MP.

Below is an overview of the main specs of the two cameras as a starting point for the comparison.

Headline Specifications
Sony A7R III
versus
Canon RP
Sony A7R III   Canon RP
Mirrorless system camera Mirrorless system camera
Sony E mount lenses Canon RF mount lenses
42.2 MP – Full Frame sensor 26 MP – Full Frame sensor
4K/30p Video 4K/30p Video
ISO 100-32,000 (50 - 102,400) ISO 100-40,000 (50 - 102,400)
Electronic viewfinder (3686k dots) Electronic viewfinder (2360k dots)
3.0" LCD – 1440k dots 3.0" LCD – 1040k dots
Tilting touchscreen Swivel touchscreen
10 shutter flaps per second 5 shutter flaps per second
In-body stabilizationLens stabilization only
Weathersealed bodynot weather sealed
650 shots per battery charge250 shots per battery charge
127 x 96 x 74 mm, 650 g 133 x 85 x 70 mm, 485 g
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Going beyond this snapshot of core features and characteristics, what are the differences between the Sony Alpha A7R III and the Canon EOS RP? 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.

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Body comparison

The side-by-side display below illustrates the physical size and weight of the Sony A7R III and the Canon RP. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. All size dimensions are rounded to the nearest millimeter.

Size Sony A7R III vs Canon RP
Compare A7R III versus RP top
Comparison A7R III or RP rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Canon RP is notably smaller (7 percent) than the Sony A7R III. Moreover, the RP is markedly lighter (25 percent) than the A7R III. It is worth mentioning in this context that the A7R III is splash and dust resistant, while the 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 A7R III gets 650 shots out of its Sony NP-FZ100 battery, while the RP can take 250 images on a single charge of its Canon LP-E17 power pack. The battery packs of both cameras can be charged via USB, which can be very convenient when travelling.

The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. If you want to switch the focus of the display and review another camera pair, you can move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons there.

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Body Specifications
# image Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Sony A7R III 127 mm 96 mm 74 mm 650 g 650 Y Oct 2017 3,199ebay.com
2.
 
Canon RP 133 mm 85 mm 70 mm 485 g 250 n Feb 2019 1,299 amazon.com
3.
 
Canon R8 133 mm 86 mm 70 mm 461 g 220 n Feb 2023 1,499 amazon.com
4.
 
Canon SL2 122 mm 93 mm 70 mm 453 g 650 n Jun 2017 549ebay.com
5.
 
Canon M5 116 mm 89 mm 61 mm 427 g 295 n Sep 2016 979ebay.com
6.
 
Canon T6s 132 mm 101 mm 78 mm 565 g 440 n Feb 2015 649ebay.com
7.
 
Nikon Z7 134 mm 101 mm 67 mm 675 g 330 Y Aug 2018 3,399ebay.com
8.
 
Sony A7R V 131 mm 97 mm 82 mm 723 g 530 Y Oct 2022 3,899 amazon.com
9.
 
Sony A1 129 mm 97 mm 81 mm 737 g 530 Y Jan 2021 6,499 amazon.com
10.
 
Sony A7R IIIA 127 mm 96 mm 74 mm 650 g 650 Y Apr 2021 3,199 amazon.com
11.
 
Sony A7R IVA 129 mm 96 mm 78 mm 665 g 670 Y Apr 2021 3,499 amazon.com
12.
 
Sony A7S III 127 mm 97 mm 81 mm 699 g 600 Y Jul 2020 3,499 amazon.com
13.
 
Sony A7R IV 129 mm 96 mm 78 mm 665 g 670 Y Jul 2019 3,499ebay.com
14.
 
Sony A7 III 127 mm 96 mm 74 mm 650 g 610 Y Feb 2018 1,999 amazon.com
15.
 
Sony A9 127 mm 96 mm 63 mm 673 g 650 Y Apr 2017 4,499ebay.com
16.
 
Sony A7R II 127 mm 96 mm 60 mm 625 g 290 Y Jun 2015 3,199ebay.com
17.
 
Sony RX1R 113 mm 65 mm 70 mm 482 g 270 n Jun 2013 2,799ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
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Any camera decision will obviously take relative prices into account. The retail prices at the time of the camera’s release place the model in the market relative to other models in the producer’s line-up and the competition. The RP was launched at a markedly lower price (by 59 percent) than the A7R 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.

Sensor comparison

The imaging sensor is at the core of digital cameras and its size is one of the main determining factors of image quality. All other things equal, a large sensor will have larger individual pixel-units that offer better low-light sensitivity, wider dynamic range, and 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 and have a format factor (sometimes also referred to as "crop factor") of 1.0. Within the spectrum of camera sensors, this places the review cameras among the large-sensor cameras that aim for top notch image quality. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Sony A7R III and Canon RP sensor measures

While the two cameras under review share the same sensor size, the A7R III offers a higher resolution of 42.2 megapixels, compared with 26 MP of the RP. This megapixels advantage translates into a 27 percent gain in linear resolution. On the other hand, these sensor specs imply that the A7R III has a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 4.52μm versus 5.76μm for the RP). Moreover, it should be noted that the RP is a somewhat more recent model (by 1 year and 3 months) than the A7R III, and its sensor might have benefitted from technological advances during this time that further enhance the light gathering capacity of individual pixels. Coming back to sensor resolution, it should be mentioned that the A7R III has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Sony A7R III implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A7R III for good quality output (200 dots per inch) amounts to 39.8 x 26.5 inches or 101 x 67.4 cm, for very good quality (250 dpi) 31.8 x 21.2 inches or 80.8 x 53.9 cm, and for excellent quality (300 dpi) 26.5 x 17.7 inches or 67.3 x 44.9 cm. The corresponding values for the Canon RP are 31.2 x 20.8 inches or 79.2 x 52.8 cm for good quality, 25 x 16.6 inches or 63.4 x 42.3 cm for very good quality, and 20.8 x 13.9 inches or 52.8 x 35.2 cm for excellent quality prints.

Unlike the RP, the A7R III has the capacity to capture high quality composite images by combining multiple shots after shifting its sensor by miniscule distances. This multi-shot, pixel-shift mode is most suitable for photography of stationary objects (landscapes, studio scenes).

The Sony Alpha A7R III has a native sensitivity range from ISO 100 to ISO 32000, which can be extended to ISO 50-102400. The corresponding ISO settings for the Canon EOS RP are ISO 100 to ISO 40000, with the possibility to increase the ISO range to 50-102400.

In terms of underlying technology, the A7R III is build around a BSI-CMOS sensor, while the RP uses a CMOS imager. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.

A7R III versus RP MP

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"). Of the two cameras under review, the A7R III provides substantially higher image quality than the RP, with an overall score that is 15 points higher. This advantage is based on 1.7 bits higher color depth, 2.8 EV in additional dynamic range, and 0.2 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.

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Sensor Characteristics
# image Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Sony A7R III Full Frame 42.2 7952 53044K/30p26.014.73523100
2.
 
Canon RP Full Frame 26.0 6240 41604K/30p24.311.9297785
3.
 
Canon R8 Full Frame 24.0 6000 40004k/60p24.514.7329593
4.
 
Canon SL2 APS-C 24.0 6000 40001080/60p23.613.4104179
5.
 
Canon M5 APS-C 24.0 6000 40001080/60p23.412.4126277
6.
 
Canon T6s APS-C 24.0 6000 40001080/30p22.612.091570
7.
 
Nikon Z7 Full Frame 45.4 8256 55044K/30p26.314.6266899
8.
 
Sony A7R V Full Frame 60.2 9504 63368k/24p26.514.83187100
9.
 
Sony A1 Full Frame 49.8 8640 57608k/30p25.914.5316398
10.
 
Sony A7R IIIA Full Frame 42.2 7952 53044K/30p26.014.73523100
11.
 
Sony A7R IVA Full Frame 60.2 9504 63364K/30p26.014.8334499
12.
 
Sony A7S III Full Frame 12.0 4240 28324K/120p23.713.9252086
13.
 
Sony A7R IV Full Frame 60.2 9504 63364K/30p26.014.8334499
14.
 
Sony A7 III Full Frame 24.0 6000 40004K/30p25.014.7373096
15.
 
Sony A9 Full Frame 24.0 6000 40004K/30p24.913.3351792
16.
 
Sony A7R II Full Frame 42.2 7952 53044K/30p26.013.9343498
17.
 
Sony RX1R Full Frame 24.0 6000 40001080/60p25.013.6253791
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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, and both provide the same movie specifications (4K/30p).

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Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. The two cameras under consideration are similar with respect to both having an electronic viewfinder. However, the one in the A7R III offers a substantially higher resolution than the one in the RP (3686k vs 2360k dots). The adjacent table lists some of the other core features of the Sony A7R III and Canon RP along with similar information for a selection of comparators.

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Core Features
# image Camera
Model
Viewfinder
(Type or
000 dots)
Control
Panel
(yes/no)
LCD
Specifications
(inch/000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Max
Shutter
Speed *
Max
Shutter
Flaps *
Built-in
Flash
(yes/no)
Built-in
Image
Stab
1.
 
Sony A7R III3686 n3.0 / 1440 tilting Y 1/8000s 10.0/s n Y
2.
 
Canon RP2360 n3.0 / 1040 swivel Y 1/4000s 5.0/s n n
3.
 
Canon R82360 n3.0 / 1620 swivel Y 1/4000s 6.0/s n n
4.
 
Canon SL2optical n3.0 / 1040 swivel Y 1/4000s 5.0/s Y n
5.
 
Canon M52360 n3.2 / 1620 tilting Y 1/4000s 9.0/s Y n
6.
 
Canon T6soptical Y3.0 / 1040 swivel Y 1/4000s 5.0/s Y n
7.
 
Nikon Z73690 Y3.2 / 2100 tilting Y 1/8000s 9.0/s n Y
8.
 
Sony A7R V9440 n3.2 / 2100 full-flex Y 1/8000s 10.0/s n Y
9.
 
Sony A19437 n3.0 / 1440 tilting Y 1/8000s 10.0/s n Y
10.
 
Sony A7R IIIA3686 n3.0 / 2340 tilting Y 1/8000s 10.0/s n Y
11.
 
Sony A7R IVA5760 n3.0 / 2340 tilting Y 1/8000s 10.0/s n Y
12.
 
Sony A7S III9440 n3.0 / 1440 swivel Y 1/8000s 10.0/s n Y
13.
 
Sony A7R IV5760 n3.0 / 1440 tilting Y 1/8000s 10.0/s n Y
14.
 
Sony A7 III2359 n3.0 / 922 tilting Y 1/8000s 10.0/s n Y
15.
 
Sony A93686 n3.0 / 1440 tilting Y 1/8000s 20.0/s n Y
16.
 
Sony A7R II2400 n3.0 / 1229 tilting n 1/8000s 5.0/s n Y
17.
 
Sony RX1Roptional n3.0 / 1229 fixed n 1/4000s 5.0/s Y n
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.
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One feature that differentiates the A7R III and the RP is in-body image stabilization (IBIS). The A7R III reduces the risk of handshake-induced blur with all attached lenses, while the RP offers no blur reduction with lenses that themselves do not provide optical image stabilization.

The RP 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 A7R III does not have a selfie-screen.

The reported shutter speed information refers to the use of the mechanical shutter. Yet, some cameras only have an electronic shutter, while others have an electronic shutter in addition to a mechanical one. In fact, the A7R III is one of those camera that have an additional electronic shutter, which makes completely silent shooting possible. However, this mode is less suitable for photographing moving objects (risk of rolling shutter) or shooting under artificial light sources (risk of flickering).

The Sony A7R III and the Canon RP both have 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 A7R III writes its imaging data to SDXC or Memory Stick PRO Duo cards, while the RP uses SDXC cards. The A7R III features dual card slots, which can be very useful in case a memory card fails. In contrast, the RP only has one slot. Both cameras support UHS-II cards, which provide for Ultra High Speed data transfer of up to 312 MB/s (the second slot of the A7R III supports only UHS-I, though).

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Connectivity comparison

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 Sony Alpha A7R III and Canon EOS RP and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
# image Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Sony A7R IIIYstereo / monoYYmicro3.1YYY
2.
 
Canon RPYstereo / monoYYmicro2.0Y-Y
3.
 
Canon R8Ystereo / monoYYmicro3.2Y-Y
4.
 
Canon SL2Ystereo / monoY-mini2.0YYY
5.
 
Canon M5Ystereo / monoY-mini2.0YYY
6.
 
Canon T6sYstereo / monoY-mini2.0YY-
7.
 
Nikon Z7Ystereo / monoYYmicro3.1Y-Y
8.
 
Sony A7R VYstereo / monoYYfull3.2Y-Y
9.
 
Sony A1Ystereo / monoYYfull3.2Y-Y
10.
 
Sony A7R IIIAYstereo / monoYYmicro3.2YYY
11.
 
Sony A7R IVAYstereo / monoYYmicro3.2YYY
12.
 
Sony A7S IIIYstereo / monoYYfull3.2Y-Y
13.
 
Sony A7R IVYstereo / monoYYmicro3.1YYY
14.
 
Sony A7 IIIYstereo / monoYYmicro3.1YYY
15.
 
Sony A9Ystereo / monoYYmicro2.0YYY
16.
 
Sony A7R IIYstereo / monoYYmicro2.0YY-
17.
 
Sony RX1RYstereo / monoY-mini2.0---
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Studio photographers will appreciate that the Sony A7R III (unlike the RP) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

The RP is a recent model that features in the current product line-up of Canon. In contrast, the A7R III has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the A7R III was succeeded by the Sony A7R IV. Further information on the features and operation of the A7R III and RP can be found, respectively, in the Sony A7R III Manual (free pdf) or the online Canon RP Manual.

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Review summary

So how do things add up? Which of the two cameras – the Sony A7R III or the Canon RP – has the upper hand? Is one clearly better than the other? A synthesis of the relative strong points of each of the models is listed below.

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Arguments in favor of the Sony Alpha A7R III:

  • More detail: Offers more megapixels (42.2 vs 26MP) with a 27% higher linear resolution.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • High quality composites: Can combine several shots after pixel-shifting its sensor.
  • Better image quality: Scores substantially higher (15 points) in the DXO overall assessment.
  • Richer colors: Generates images with noticeably better colors (1.7 bits more color depth).
  • More dynamic range: Captures a larger spectrum of light and dark details (2.8 EV of extra DR).
  • More detailed viewfinder: Has higher resolution electronic viewfinder (3686k vs 2360k dots).
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.78x vs 0.70x).
  • More detailed LCD: Has a higher resolution rear screen (1440k vs 1040k dots).
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
  • Faster burst: Shoots at higher frequency (10 vs 5 flaps/sec) to capture the decisive moment.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • Longer lasting: Can take more shots (650 versus 250) on a single battery charge.
  • Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
  • Sharper images: Has hand-shake reducing image stabilization built-in.
  • Faster data transfer: Supports a more advanced USB protocol (3.1 vs 2.0).
  • Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
  • 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 on the market for longer (launched in October 2017).

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Advantages of the Canon EOS RP:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • More flexible LCD: Has a swivel 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.
  • Less heavy: Has a lower weight (by 165g or 25 percent) and is thus easier to take along.
  • More affordable: Was introduced into a lower priced category (59 percent cheaper at launch).
  • More modern: Was introduced somewhat (1 year and 3 months) more recently.

If the count of individual advantages (bullet points above) is taken as a guide, the A7R III is the clear winner of the match-up (20 : 6 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.

A7R III 20:06 RP

How about other alternatives? Do the specifications of the Sony A7R III and the Canon RP place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera listing whether the two cameras rank among the cream of the crop.

In any case, while the specs-based evaluation of cameras can be instructive in revealing their potential as photographic tools, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the A7R III or the RP. 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.

Expert reviews

This is where reviews by experts come in. The adjacent summary-table relays the overall verdicts of several of the most popular camera review sites (amateurphotographer [AP], cameralabs [CL], digitalcameraworld [DCW], 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.

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Expert Camera Reviews
# image  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Sony A7R III..+ +4/590/1004.5/55/5 Oct 2017 3,199ebay.com
2.
 
Canon RP4/5+4/5..4.5/54/5 Feb 2019 1,299 amazon.com
3.
 
Canon R84.5/5+ +4.5/587/1004/54.5/5 Feb 2023 1,499 amazon.com
4.
 
Canon SL24/5+ +4/578/1004.5/54.5/5 Jun 2017 549ebay.com
5.
 
Canon M54/5+4/582/1004/54/5 Sep 2016 979ebay.com
6.
 
Canon T6s5/5+..77/1004.5/54.5/5 Feb 2015 649ebay.com
7.
 
Nikon Z75/5+4.8/589/1004.5/55/5 Aug 2018 3,399ebay.com
8.
 
Sony A7R V5/5+ +4.5/592/100.... Oct 2022 3,899 amazon.com
9.
 
Sony A15/5o4.5/593/1004.5/55/5 Jan 2021 6,499 amazon.com
10.
 
Sony A7R IIIA..+ +4/590/1004.5/55/5 Apr 2021 3,199 amazon.com
11.
 
Sony A7R IVA5/5+4.5/591/1004.5/55/5 Apr 2021 3,499 amazon.com
12.
 
Sony A7S III4.5/5+ +5/591/1004.5/55/5 Jul 2020 3,499 amazon.com
13.
 
Sony A7R IV5/5+4.5/591/1004.5/55/5 Jul 2019 3,499ebay.com
14.
 
Sony A7 III..+ +4.5/589/1005/55/5 Feb 2018 1,999 amazon.com
15.
 
Sony A95/5+ +4.8/589/1005/55/5 Apr 2017 4,499ebay.com
16.
 
Sony A7R II5/5+ +5/590/1005/55/5 Jun 2015 3,199ebay.com
17.
 
Sony RX1R5/5......4/54.5/5 Jun 2013 2,799ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.
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The review scores listed above should be treated with care, though. The assessments were made in relation to similar cameras of the same technological generation. Hence, a score should always be seen in the context of the camera's market launch date and its price, and comparing ratings of very distinct cameras or ones that are far apart in terms of their release date 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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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. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.

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    Specifications: Sony A7R III vs Canon RP

    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 Specifications
    Camera Model Sony A7R III Canon RP
    Camera Type Mirrorless system camera Mirrorless system camera
    Camera Lens Sony E mount lenses Canon RF mount lenses
    Launch Date October 2017 February 2019
    Launch Price USD 3,199 USD 1,299
    Sensor Specs Sony A7R III Canon RP
    Sensor Technology BSI-CMOS CMOS
    Sensor Format Full Frame Sensor Full Frame Sensor
    Sensor Size 35.9 x 24.0 mm 35.9 x 24.0 mm
    Sensor Area 861.6 mm2 861.6 mm2
    Sensor Diagonal 43.2 mm 43.2 mm
    Crop Factor 1.0x 1.0x
    Sensor Resolution 42.2 Megapixels 26 Megapixels
    Image Resolution 7952 x 5304 pixels 6240 x 4160 pixels
    Pixel Pitch 4.52 μm 5.76 μm
    Pixel Density 4.90 MP/cm2 3.01 MP/cm2
    Moiré control no AA filter Anti-Alias filter
    Movie Capability 4K/30p Video 4K/30p Video
    ISO Setting 100 - 32,000 ISO 100 - 40,000 ISO
    ISO Boost 50 - 102,400 ISO 50 - 102,400 ISO
    Image Processor BIONZ X DIGIC 8
    DXO Sensor Quality (score) 100 85
    DXO Color Depth (bits) 26.0 24.3
    DXO Dynamic Range (EV) 14.7 11.9
    DXO Low Light (ISO) 3523 2977
    Screen Specs Sony A7R III Canon RP
    Viewfinder Type Electronic viewfinder Electronic viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.78x 0.70x
    Viewfinder Resolution 3686k dots 2360k dots
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 1440k dots 1040k dots
    LCD Attachment Tilting screen Swivel screen
    Touch Input Touchscreen Touchscreen
    Shooting Specs Sony A7R III Canon RP
    Focus System On-Sensor Phase-detect On-Sensor Phase-detect
    Manual Focusing AidFocus Peakingno Peaking Feature
    Continuous Shooting 10 shutter flaps/s 5 shutter flaps/s
    Shutter Life Expectancy500 000 actuations100 000 actuations
    Electronic ShutterYESno E-Shutter
    Time-Lapse PhotographyIntervalometer built-inIntervalometer built-in
    Image StabilizationIn-body stabilizationLens stabilization only
    Fill Flash no On-Board Flash no On-Board Flash
    Storage Medium MS or SDXC cards SDXC cards
    Single or Dual Card Slots Dual card slots Single card slot
    UHS card support Single UHS-II UHS-II
    Connectivity Specs Sony A7R III Canon RP
    External Flash Hotshoe Hotshoe
    Studio Flash PC Sync socket no PC Sync
    USB Connector USB 3.1 USB 2.0
    HDMI Port micro HDMI micro HDMI
    Microphone Port External MIC port External MIC port
    Headphone Socket Headphone port Headphone port
    Wifi Support Wifi built-in Wifi built-in
    Near-Field Communication NFC built-in no NFC
    Bluetooth Support Bluetooth built-in Bluetooth built-in
    Body Specs Sony A7R III Canon RP
    Environmental SealingWeathersealed bodynot weather sealed
    Battery Type Sony NP-FZ100 Canon LP-E17
    Battery Life (CIPA)650 shots per charge250 shots per charge
    In-Camera Charging USB charging USB charging
    Body Dimensions 127 x 96 x 74 mm
    (5.0 x 3.8 x 2.9 in)
    133 x 85 x 70 mm
    (5.2 x 3.3 x 2.8 in)
    Camera Weight 650 g (22.9 oz) 485 g (17.1 oz)
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