Canon RP vs Ricoh GR IIIx
The Canon EOS RP and the Ricoh GR IIIx are two digital cameras that were officially introduced, respectively, in February 2019 and September 2021. The RP is a mirrorless interchangeable lens camera, while the GR IIIx is a fixed lens compact. The cameras are based on a full frame (RP) and an APS-C (GR IIIx) sensor. The Canon has a resolution of 26 megapixels, whereas the Ricoh 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 Ricoh GR IIIx? 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.
The physical size and weight of the Canon RP and the Ricoh GR IIIx are illustrated in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive views from the front, the top, and the rear side 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 Ricoh GR IIIx is considerably smaller (40 percent) than the Canon RP. In this context, it is worth noting that neither the RP nor the GR IIIx are weather-sealed.
The above size and weight comparisons are to some extent incomplete and possibly misleading, as the GR IIIx has a lens built in, whereas the RP is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup.
Concerning battery life, the RP gets 250 shots out of its LP-E17 battery, while the GR IIIx can take 200 images on a single charge of its DB-110 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 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||amazon.com|
|2.||Ricoh GR IIIx||109 mm||62 mm||35 mm||262 g||200||n||Sep 2021||999||amazon.com|
|3.||Canon T8i||131 mm||103 mm||76 mm||515 g||800||n||Feb 2020||749||amazon.com|
|4.||Canon SL3||122 mm||93 mm||70 mm||449 g||1070||n||Apr 2019||599||amazon.com|
|5.||Canon T7||129 mm||101 mm||78 mm||475 g||500||n||Feb 2018||449||amazon.com|
|6.||Canon R||139 mm||98 mm||84 mm||660 g||370||Y||Sep 2018||2,299||amazon.com|
|7.||Canon SL2||122 mm||93 mm||70 mm||453 g||650||n||Jun 2017||549||ebay.com|
|8.||Canon M5||116 mm||89 mm||61 mm||427 g||295||n||Sep 2016||979||ebay.com|
|9.||Canon T6s||132 mm||101 mm||78 mm||565 g||440||n||Feb 2015||649||ebay.com|
|10.||Fujifilm X-S10||126 mm||85 mm||65 mm||465 g||325||n||Oct 2020||999||amazon.com|
|11.||Ricoh GR III||109 mm||62 mm||33 mm||257 g||200||n||Feb 2019||899||amazon.com|
|12.||Ricoh GR II||117 mm||63 mm||35 mm||251 g||320||n||Jun 2015||699||ebay.com|
|13.||Sony RX100 VI||102 mm||58 mm||43 mm||301 g||240||n||Jun 2018||1,199||ebay.com|
|14.||Sony RX100 V||102 mm||58 mm||41 mm||299 g||220||n||Oct 2016||999||ebay.com|
|15.||Sony RX1R||113 mm||65 mm||70 mm||482 g||270||n||Jun 2013||2,799||ebay.com|
|16.||Sony RX1||113 mm||65 mm||70 mm||482 g||270||n||Sep 2012||2,799||ebay.com|
|17.||Sony NEX-7||120 mm||67 mm||43 mm||400 g||430||n||Aug 2011||1,349||ebay.com|
|Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.|
Any camera decision will obviously take relative prices into account. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The GR IIIx was launched at a lower price than the RP, despite having a lens built in. 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 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. 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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.
Of the two cameras under consideration, the Canon RP features a full frame sensor and the Ricoh GR IIIx an APS-C sensor. The sensor area in the GR IIIx is 57 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.0 and 1.5. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
With 26MP, the RP offers a slightly higher resolution than the GR IIIx (24MP), but the RP nevertheless has larger individual pixels (pixel pitch of 5.76μm versus 3.91μm for the GR IIIx) due to its larger sensor. However, the GR IIIx is a much more recent model (by 2 years and 6 months) than the RP, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixels. Coming back to sensor resolution, it should be mentioned that the GR IIIx has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
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 Ricoh GR IIIx are ISO 100 to ISO 102400 (no boost).
Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.
Consistent information on actual sensor performance is available from DXO Mark for many 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. The adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.
|1.||Canon RP||Full Frame||26.0||6240||4160||4K/30p||24.3||11.9||2977||85|
|2.||Ricoh GR IIIx||APS-C||24.0||6000||4000||1080/60p||24.2||13.8||2146||85|
|6.||Canon R||Full Frame||30.1||6720||4480||4K/30p||24.5||13.5||2742||89|
|11.||Ricoh GR III||APS-C||24.0||6000||4000||1080/60p||24.1||13.5||1897||83|
|12.||Ricoh GR II||APS-C||16.1||4928||3264||1080/30p||23.6||13.7||1078||80|
|13.||Sony RX100 VI||1-inch||20.0||5472||3648||4K/30p||22.1||12.3||478||64|
|14.||Sony RX100 V||1-inch||20.0||5472||3648||4K/30p||22.8||12.4||586||70|
|15.||Sony RX1R||Full Frame||24.0||6000||4000||1080/60p||25.0||13.6||2537||91|
|16.||Sony RX1||Full Frame||24.0||6000||4000||1080/60p||25.1||14.3||2534||93|
|Note: DXO values in italics represent estimates based on sensor size and age.|
Many modern cameras cannot only take still pictures, but also record videos. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, but the RP provides a higher video resolution than the GR IIIx. It can shoot video footage at 4K/30p, while the Ricoh is limited to 1080/60p.
Beyond body and sensor, cameras can and do differ across a range of features. For example, the RP has an electronic viewfinder (2360k dots), which can be very helpful when shooting in bright sunlight. In contrast, the GR IIIx relies on live view and the rear LCD for framing. That said, the GR IIIx can be equipped with an optional viewfinder – the GV-3. The adjacent table lists some of the other core features of the Canon RP and Ricoh GR IIIx along with similar information for a selection of comparators.
|1.||Canon RP||2360||n||3.0 / 1040||swivel||Y||1/4000s||5.0/s||n||n|
|2.||Ricoh GR IIIx||optional||n||3.0 / 1037||fixed||Y||1/4000s||4.0/s||n||Y|
|3.||Canon T8i||optical||n||3.0 / 1040||swivel||Y||1/4000s||7.5/s||Y||n|
|4.||Canon SL3||optical||n||3.0 / 1040||swivel||Y||1/4000s||5.0/s||Y||n|
|5.||Canon T7||optical||n||3.0 / 920||fixed||n||1/4000s||3.0/s||Y||n|
|6.||Canon R||3690||Y||3.2 / 2100||swivel||Y||1/8000s||8.0/s||n||n|
|7.||Canon SL2||optical||n||3.0 / 1040||swivel||Y||1/4000s||5.0/s||Y||n|
|8.||Canon M5||2360||n||3.2 / 1620||tilting||Y||1/4000s||9.0/s||Y||n|
|9.||Canon T6s||optical||Y||3.0 / 1040||swivel||Y||1/4000s||5.0/s||Y||n|
|10.||Fujifilm X-S10||2360||n||3.0 / 1040||swivel||Y||1/4000s||8.0/s||Y||Y|
|11.||Ricoh GR III||optional||n||3.0 / 1037||fixed||Y||1/4000s||4.0/s||n||Y|
|12.||Ricoh GR II||optional||n||3.0 / 1230||fixed||n||1/4000s||4.0/s||Y||n|
|13.||Sony RX100 VI||2359||n||3.0 / 1229||tilting||Y||1/2000s||24.0/s||Y||Y|
|14.||Sony RX100 V||2359||n||3.0 / 1229||tilting||n||1/2000s||24.0/s||Y||Y|
|15.||Sony RX1R||optional||n||3.0 / 1229||fixed||n||1/4000s||5.0/s||Y||n|
|16.||Sony RX1||optional||n||3.0 / 1229||fixed||n||1/4000s||5.0/s||Y||n|
|17.||Sony NEX-7||2359||n||3.0 / 921||tilting||n||1/4000s||10.0/s||Y||n|
|Notes: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.|
The Canon RP and the Ricoh GR IIIx 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.
Concerning the storage of imaging data, both the RP and the GR IIIx write their files to SDXC cards. The RP supports UHS-II cards (Ultra High Speed data transfer of up to 312 MB/s), while the GR IIIx 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 Ricoh GR IIIx and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
Mic / Speaker
|1.||Canon RP||Y||stereo / mono||Y||Y||micro||2.0||Y||-||Y|
|2.||Ricoh GR IIIx||Y||stereo / mono||-||-||-||3.0||Y||-||Y|
|3.||Canon T8i||Y||stereo / mono||Y||-||mini||2.0||Y||-||Y|
|4.||Canon SL3||Y||stereo / mono||Y||-||mini||2.0||Y||-||Y|
|5.||Canon T7||Y||mono / mono||-||-||mini||2.0||Y||Y||-|
|6.||Canon R||Y||stereo / mono||Y||Y||mini||3.1||Y||-||Y|
|7.||Canon SL2||Y||stereo / mono||Y||-||mini||2.0||Y||Y||Y|
|8.||Canon M5||Y||stereo / mono||Y||-||mini||2.0||Y||Y||Y|
|9.||Canon T6s||Y||stereo / mono||Y||-||mini||2.0||Y||Y||-|
|10.||Fujifilm X-S10||Y||stereo / mono||Y||-||micro||3.2||Y||-||Y|
|11.||Ricoh GR III||Y||stereo / mono||-||-||-||3.0||Y||-||Y|
|12.||Ricoh GR II||Y||stereo / mono||-||-||micro||2.0||Y||Y||-|
|13.||Sony RX100 VI||-||stereo / mono||-||-||micro||2.0||Y||Y||Y|
|14.||Sony RX100 V||-||stereo / mono||-||-||micro||2.0||Y||Y||-|
|15.||Sony RX1R||Y||stereo / mono||Y||-||mini||2.0||-||-||-|
|16.||Sony RX1||Y||stereo / mono||Y||-||mini||2.0||-||-||-|
|17.||Sony NEX-7||Y||stereo / mono||Y||-||mini||2.0||-||-||-|
It is notable that the RP has a microphone port, which is missing on the GR IIIx. Such an external microphone input can help to substantially improve the quality of audio recordings when a good external microphone is used.
Both the RP and the GR IIIx are recent models that are part of the current product line-up. The GR IIIx replaced the earlier Ricoh GR II, while the RP does not have a direct predecessor. Further information on the features and operation of the RP and GR IIIx can be found, respectively, in the Canon RP Manual (free pdf) or the online Ricoh GR IIIx Manual.
So how do things add up? Which of the two cameras – the Canon RP or the Ricoh GR IIIx – has the upper hand? Is one clearly better than the other? The listing below highlights the relative strengths of the two models.
Arguments in favor of the Canon EOS RP:
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- Better image quality: Features bigger pixels on a larger sensor for higher quality imaging.
- Richer colors: The pixel size advantage translates into images with better, more accurate colors.
- More dynamic range: Larger pixels capture a wider spectrum of light and dark details.
- Better low-light sensitivity: Larger pixels means good image quality even under poor lighting.
- Better video: Provides higher definition movie capture (4K/30p vs 1080/60p).
- Better sound: Can connect to an external microphone for higher quality sound recording.
- Better sound control: Has a headphone port that enables audio monitoring while recording.
- Easier framing: Has an electronic viewfinder for image composition and settings control.
- 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.
- Faster burst: Shoots at higher frequency (5 vs 4 flaps/sec) to capture the decisive moment.
- More flexible: Accepts interchangeable lenses, so that lens characteristics can be altered.
- Longer lasting: Can take more shots (250 versus 200) on a single battery charge.
- Faster buffer clearing: Supports a more advanced SD data transfer standard (UHS-II vs UHS-I).
- More heavily discounted: Has been available for much longer (launched in February 2019).
Advantages of the Ricoh GR IIIx:
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- Ready to shoot: Has an integrated lens, whereas the RP necessitates an extra lens.
- More compact: Is smaller (109x62mm vs 133x85mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight even though it has a lens built in (unlike the RP).
- Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
- Faster data transfer: Supports a more advanced USB protocol (3.0 vs 2.0).
- More affordable: Was introduced at a lower price, despite coming with a built-in lens.
- More modern: Reflects 2 years and 6 months of technical progress since the RP launch.
If the number of relative strengths (bullet points above) is taken as a guide, the RP is the clear winner of the match-up (16 : 8 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 Ricoh GR IIIx place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera and Best Prime Lens Compact 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 RP or the GR IIIx. At times, user reviews, such as those published at amazon, address these issues in a useful manner, but such feedback is on many occasions incomplete, inconsistent, and unreliable.
This is why expert reviews are important. 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.
|1.||Canon RP||4/5||+||4/5||..||4.5/5||4/5||Feb 2019||1,299||amazon.com|
|2.||Ricoh GR IIIx||..||..||..||..||..||..||Sep 2021||999||amazon.com|
|3.||Canon T8i||4.5/5||+||3/5||80/100||4/5||3.5/5||Feb 2020||749||amazon.com|
|4.||Canon SL3||4/5||o||4.5/5||79/100||4/5||4/5||Apr 2019||599||amazon.com|
|5.||Canon T7||..||o||3.5/5||..||3.5/5||3.5/5||Feb 2018||449||amazon.com|
|6.||Canon R||4/5||o||4/5||79/100||4.5/5||4/5||Sep 2018||2,299||amazon.com|
|7.||Canon SL2||4/5||+ +||4/5||78/100||4.5/5||4.5/5||Jun 2017||549||ebay.com|
|8.||Canon M5||4/5||+||4/5||82/100||4/5||4/5||Sep 2016||979||ebay.com|
|9.||Canon T6s||5/5||+||..||77/100||4.5/5||4.5/5||Feb 2015||649||ebay.com|
|10.||Fujifilm X-S10||5/5||..||4.5/5||86/100||4.5/5||4.5/5||Oct 2020||999||amazon.com|
|11.||Ricoh GR III||4/5||..||3.5/5||81/100||4/5||..||Feb 2019||899||amazon.com|
|12.||Ricoh GR II||..||..||..||..||4.5/5||4.5/5||Jun 2015||699||ebay.com|
|13.||Sony RX100 VI||4.5/5||+ +||..||83/100||4/5||4.5/5||Jun 2018||1,199||ebay.com|
|14.||Sony RX100 V||4.5/5||+ +||..||83/100||4/5||4.5/5||Oct 2016||999||ebay.com|
|15.||Sony RX1R||5/5||..||..||..||4/5||4.5/5||Jun 2013||2,799||ebay.com|
|16.||Sony RX1||5/5||..||..||79/100||4/5||4.5/5||Sep 2012||2,799||ebay.com|
|17.||Sony NEX-7||5/5||+ +||..||81/100||4.5/5||5/5||Aug 2011||1,349||ebay.com|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
The review scores listed above should be treated with care, though. The ratings are only valid when referring 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, 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 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.
- Canon 60D vs Ricoh GR IIIx
- Canon 7D II vs Canon RP
- Canon G12 vs Canon RP
- Canon M50 Mark II vs Ricoh GR IIIx
- Canon RP vs Fujifilm X-E4
- Canon RP vs Leica TL
- Canon RP vs Olympus E-M1
- Canon RP vs Panasonic LX100
- Canon XS vs Ricoh GR IIIx
- Fujifilm X-T20 vs Ricoh GR IIIx
- Panasonic G9 vs Ricoh GR IIIx
- Ricoh GR IIIx vs Sony A1
Specifications: Canon RP vs Ricoh GR IIIx
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||Ricoh GR IIIx|
|Camera Type||Mirrorless system camera||Fixed lens compact camera|
|Camera Lens||Canon RF mount lenses||40mm f/2.8|
|Launch Date||February 2019||September 2021|
|Launch Price||USD 1,299||USD 999|
|Sensor Specs||Canon RP||Ricoh GR IIIx|
|Sensor Format||Full Frame Sensor||APS-C Sensor|
|Sensor Size||35.9 x 24.0 mm||23.5 x 15.6 mm|
|Sensor Area||861.6 mm2||366.6 mm2|
|Sensor Diagonal||43.2 mm||28.2 mm|
|Sensor Resolution||26 Megapixels||24 Megapixels|
|Image Resolution||6240 x 4160 pixels||6000 x 4000 pixels|
|Pixel Pitch||5.76 μm||3.91 μm|
|Pixel Density||3.01 MP/cm2||6.55 MP/cm2|
|Moiré control||Anti-Alias filter||no AA filter|
|Movie Capability||4K/30p Video||1080/60p Video|
|ISO Setting||100 - 40,000 ISO||100 - 102,400 ISO|
|ISO Boost||50 - 102,400 ISO||no Enhancement|
|Image Processor||DIGIC 8||GR Engine VI|
|DXO Sensor Quality (score)||85||..|
|DXO Color Depth (bits)||24.3||..|
|DXO Dynamic Range (EV)||11.9||..|
|DXO Low Light (ISO)||2977||..|
|Screen Specs||Canon RP||Ricoh GR IIIx|
|Viewfinder Type||Electronic viewfinder||Viewfinder optional|
|Viewfinder Field of View||100%|
|Viewfinder Resolution||2360k dots|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0inch||3.0inch|
|LCD Resolution||1040k dots||1037k dots|
|LCD Attachment||Swivel screen||Fixed screen|
|Shooting Specs||Canon RP||Ricoh GR IIIx|
|Focus System||On-Sensor Phase-detect||On-Sensor Phase-detect|
|Continuous Shooting||5 shutter flaps/s||4 shutter flaps/s|
|Time-Lapse Photography||Intervalometer built-in||Intervalometer built-in|
|Image Stabilization||Lens stabilization only||In-body stabilization|
|Fill Flash||no On-Board Flash||no On-Board Flash|
|Storage Medium||SDXC cards||SDXC cards|
|Single or Dual Card Slots||Single card slot||Single card slot|
|UHS card support||UHS-II||UHS-I|
|Connectivity Specs||Canon RP||Ricoh GR IIIx|
|USB Connector||USB 2.0||USB 3.0|
|HDMI Port||micro HDMI||no HDMI|
|Microphone Port||External MIC port||no MIC socket|
|Headphone Socket||Headphone port||no Headphone port|
|Wifi Support||Wifi built-in||Wifi built-in|
|Bluetooth Support||Bluetooth built-in||Bluetooth built-in|
|Body Specs||Canon RP||Ricoh GR IIIx|
|Battery Life (CIPA)||250 shots per charge||200 shots per charge|
|In-Camera Charging||USB charging||USB charging|
133 x 85 x 70 mm
(5.2 x 3.3 x 2.8 in)
109 x 62 x 35 mm
(4.3 x 2.4 x 1.4 in)
|Camera Weight||485 g (17.1 oz)||262 g (9.2 oz)|
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