Canon T3i vs Ricoh GR III
The Canon EOS Rebel T3i (called Canon 600D in some regions) and the Ricoh GR III are two digital cameras that were revealed to the public, respectively, in February 2011 and February 2019. The T3i is a DSLR, while the GR III is a fixed lens compact. Both cameras are equipped with an APS-C sensor. The Canon has a resolution of 17.9 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 Rebel T3i and the Ricoh GR III? 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 T3i and the Ricoh GR III 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 size 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 III is considerably smaller (49 percent) than the Canon T3i. In this context, it is worth noting that neither the T3i nor the GR III are weather-sealed.
The above size and weight comparisons are to some extent incomplete and possibly misleading, as the GR III has a lens built in, whereas the T3i is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup. You can compare the optics available for the T3i and their specifications in the Canon EF Lens Catalog.
The power pack in the GR III can be charged via the USB port, which can be very convenient when travelling.
The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. In case you want to display and compare another camera duo, you can use the CAM-parator app to select your camera combination among a large number of options.
|1.||Canon T3i||133 mm||100 mm||80 mm||570 g||440||n||Feb 2011||599|
|2.||Ricoh GR III||109 mm||62 mm||33 mm||257 g||200||n||Feb 2019||899|
|3.||Canon G7 X Mark III||105 mm||61 mm||41 mm||304 g||235||n||Jul 2019||749|
|4.||Canon SL2||122 mm||93 mm||70 mm||453 g||650||n||Jun 2017||549|
|5.||Canon T6s||132 mm||101 mm||78 mm||565 g||440||n||Feb 2015||649|
|6.||Canon T5||130 mm||100 mm||78 mm||480 g||500||n||Feb 2014||449|
|7.||Canon SL1||117 mm||91 mm||69 mm||407 g||380||n||Mar 2013||549|
|8.||Canon T5i||133 mm||100 mm||79 mm||580 g||440||n||Mar 2013||649|
|9.||Canon M||109 mm||66 mm||32 mm||298 g||230||n||Jul 2012||599|
|10.||Canon T4i||133 mm||100 mm||79 mm||575 g||440||n||Jun 2012||849|
|11.||Canon T3||130 mm||100 mm||78 mm||495 g||700||n||Feb 2011||449|
|12.||Canon T2i||129 mm||98 mm||62 mm||530 g||440||n||Feb 2010||699|
|13.||Canon T1i||129 mm||98 mm||62 mm||520 g||400||n||Mar 2009||799|
|14.||Fujifilm XF10||113 mm||64 mm||41 mm||279 g||330||n||Jul 2018||499|
|15.||Panasonic ZS200||111 mm||65 mm||45 mm||340 g||370||n||Feb 2018||799|
|16.||Ricoh GR II||117 mm||63 mm||35 mm||251 g||320||n||Jun 2015||699|
|17.||Ricoh GR||117 mm||61 mm||35 mm||245 g||290||n||Apr 2013||799|
|Notes: 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. 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 more expensive and lead to bigger and heavier cameras and lenses.
Both cameras under consideration feature an APS-C sensor, but their sensors differ slightly in size. The sensor area in the GR III is 11 percent bigger. As a result of these sensor size differences, the cameras have format factors, respectively, of 1.6 (T3i) and 1.5. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
In terms of underlying technology, both cameras are build around CMOS sensors.
With 24MP, the GR III offers a higher resolution than the T3i (17.9MP), but the GR III has smaller individual pixels (pixel pitch of 3.91μm versus 4.31μm for the T3i). Yet, the GR III is a much more recent model (by 8 years) than the T3i, and its sensor will have benefitted from technological advances during this time that enhance the light gathering capacity of its pixel-units. Coming back to sensor resolution, it should be mentioned that the GR III has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
The resolution advantage of the Ricoh GR III implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the GR III for good quality output (200 dots per inch) amounts to 30 x 20 inches or 76.2 x 50.8 cm, for very good quality (250 dpi) 24 x 16 inches or 61 x 40.6 cm, and for excellent quality (300 dpi) 20 x 13.3 inches or 50.8 x 33.9 cm. The corresponding values for the Canon T3i are 25.9 x 17.3 inches or 65.8 x 43.9 cm for good quality, 20.7 x 13.8 inches or 52.7 x 35.1 cm for very good quality, and 17.3 x 11.5 inches or 43.9 x 29.3 cm for excellent quality prints.
The GR III has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.
The Canon EOS Rebel T3i has a native sensitivity range from ISO 100 to ISO 6400, which can be extended to ISO 100-12800. The corresponding ISO settings for the Ricoh GR III are ISO 100 to ISO 102400 (no boost).
Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. 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.
| DXO |
|2.||Ricoh GR III||APS-C||24.0||6000||4000||1080/60p||..||..||..||..|
|3.||Canon G7 X Mark III||1-inch||20.0||5472||3648||4K/30p||..||..||..||..|
|16.||Ricoh GR II||APS-C||16.1||4928||3264||1080/30p||23.6||13.7||1078||80|
Many modern cameras are not only capable of taking still images, but can also record movies. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, but the GR III provides a faster frame rate than the T3i. 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 T3i has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the GR III relies on live view and the rear LCD for framing. That said, the GR III can be equipped with an optional viewfinder – the GV-1. The table below summarizes some of the other core capabilities of the Canon T3i and Ricoh GR III in connection with corresponding information for a sample of similar cameras.
|2.||Ricoh GR III||optional||n||3.0||1037||fixed||Y||1/4000s||4.0||n||Y|
|3.||Canon G7 X Mark III||none||n||3.0||1040||tilting||Y||1/2000s||30||Y||Y|
|16.||Ricoh GR II||optional||n||3.0||1230||fixed||n||1/4000s||4.0||Y||n|
One difference between the cameras concerns the presence of an on-board flash. The T3i has one, while the GR III does not. While the built-in flash of the T3i is not very powerful, it can at times be useful as a fill-in light.The T3i has an articulated LCD that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in snapping selfies. In contrast, the GR III does not have a selfie-screen.
The Ricoh GR III 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.
Concerning the storage of imaging data, both the T3i and the GR III write their files to SDXC cards. The GR III supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the T3i cannot take advantage of Ultra High Speed SD cards.
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 Rebel T3i and Ricoh GR III and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
| NFC |
|2.||Ricoh GR III||Y||stereo||mono||-||-||-||3.0||Y||-||Y|
|3.||Canon G7 X Mark III||-||stereo||mono||Y||-||micro||3.1||Y||-||Y|
|16.||Ricoh GR II||Y||stereo||mono||-||-||micro||2.0||Y||Y||-|
It is notable that the T3i has a microphone port, which is missing on the GR III. Such an external microphone input can help to substantially improve the quality of audio recordings when a good external microphone is used.
The GR III is a recent model that features in the current product line-up of Ricoh. In contrast, the T3i has been discontinued (but can be found pre-owned on eBay). As a replacement in the same line of cameras, the T3i was succeeded by the Canon T4i. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Canon and Ricoh websites.
So how do things add up? Is there a clear favorite between the Canon T3i and the Ricoh GR III? Which camera is better? A synthesis of the relative strong points of each of the models is listed below.
Advantages of the Canon EOS Rebel T3i:
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- Better sound: Can connect to an external microphone for higher quality sound recording.
- Easier framing: Has an optical 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.
- More flexible: Can take a variety of interchangeable lenses, including specialty optics.
- Longer lasting: Can take more shots (440 versus 200) on a single battery charge.
- Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
- More heavily discounted: Has been available for much longer (launched in February 2011).
Reasons to prefer the Ricoh GR III:
- More detail: Has more megapixels (24 vs 17.9MP), which boosts linear resolution by 16%.
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- Better video: Provides higher movie framerates (1080/60p versus 1080/30p).
- Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
- Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
- Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
- Ready to shoot: Comes with an integrated lens, while the T3i requires a separate lens.
- More compact: Is smaller (109x62mm vs 133x100mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight even though it has a lens built in (unlike the T3i).
- Easier travel charging: Can be conveniently charged via its USB port.
- 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).
- 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: Has an SD card interface that supports the UHS-I standard.
- More modern: Reflects 8 years of technical progress since the T3i launch.
If the count of relative strengths (bullet points above) is taken as a measure, the GR III is the clear winner of the contest (16 : 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 wildlife photographer will view the differences between cameras in a way that diverges from the perspective of a family photog, and a person interested in architecture has distinct needs from a sports 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 T3i and the Ricoh GR III place the cameras among the top in their class? Find out in the latest Best DSLR 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 says little about, for example, the shooting experience and imaging performance of the T3i and the GR III in practical situations. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased.
This is where reviews by experts come in. The following table reports the overall ratings of the cameras as published by some of the major 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 T3i||3/5||o||77/100||4.5/5||4.5/5||Feb 2011||599|
|2.||Ricoh GR III||4/5||..||81/100||4/5||..||Feb 2019||899|
|3.||Canon G7 X Mark III||..||+ +||81/100||4/5||..||Jul 2019||749|
|4.||Canon SL2||4/5||+ +||78/100||4.5/5||4.5/5||Jun 2017||549|
|5.||Canon T6s||5/5||+||77/100||4.5/5||4.5/5||Feb 2015||649|
|6.||Canon T5||3/5||+||..||4/5||4.5/5||Feb 2014||449|
|7.||Canon SL1||4/5||+||78/100||4/5||4/5||Mar 2013||549|
|8.||Canon T5i||..||..||76/100||4.5/5||4.5/5||Mar 2013||649|
|9.||Canon M||3/5||+||..||4/5||4/5||Jul 2012||599|
|10.||Canon T4i||4/5||+ +||77/100||4.5/5||4.5/5||Jun 2012||849|
|11.||Canon T3||..||80/100||69/100||4/5||4.5/5||Feb 2011||449|
|12.||Canon T2i||..||+ +||77/100||4/5||4.5/5||Feb 2010||699|
|13.||Canon T1i||..||+ +||74/100||4.5/5||4.5/5||Mar 2009||799|
|14.||Fujifilm XF10||..||..||75/100||4/5||4.5/5||Jul 2018||499|
|15.||Panasonic ZS200||..||+ +||81/100||4.5/5||4.5/5||Feb 2018||799|
|16.||Ricoh GR II||..||..||..||4.5/5||4.5/5||Jun 2015||699|
|17.||Ricoh GR||5/5||..||79/100||4.5/5||4.5/5||Apr 2013||799|
|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 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 make your choice using the following search menu. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.
Specifications: Canon T3i vs Ricoh GR III
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 T3i||Ricoh GR III|
|Camera Type||Digital single lens reflex||Fixed lens compact camera|
|Camera Lens||Canon EF mount lenses||28mm f/2.8|
|Launch Date||February 2011||February 2019|
|Launch Price||USD 599||USD 899|
|Sensor Specs||Canon T3i||Ricoh GR III|
|Sensor Format||APS-C Sensor||APS-C Sensor|
|Sensor Size||22.3 x 14.9 mm||23.5 x 15.6 mm|
|Sensor Area||332.27 mm2||366.6 mm2|
|Sensor Diagonal||26.8 mm||28.2 mm|
|Sensor Resolution||17.9 Megapixels||24 Megapixels|
|Image Resolution||5184 x 3456 pixels||6000 x 4000 pixels|
|Pixel Pitch||4.31 μm||3.91 μm|
|Pixel Density||5.39 MP/cm2||6.55 MP/cm2|
|Moiré control||Anti-Alias filter||no AA filter|
|Movie Capability||1080/30p Video||1080/60p Video|
|ISO Setting||100 - 6,400 ISO||100 - 102,400 ISO|
|ISO Boost||100 - 12,800 ISO||no Enhancement|
|Image Processor||DIGIC 4||GR Engine VI|
|DXO Sensor Quality (score)||65||..|
|DXO Color Depth (bits)||22.1||..|
|DXO Dynamic Range (EV)||11.5||..|
|DXO Low Light (ISO)||793||..|
|Screen Specs||Canon T3i||Ricoh GR III|
|Viewfinder Type||Optical viewfinder||Viewfinder optional|
|Viewfinder Field of View||95%|
|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|
|Touch Input||no Touchscreen||Touchscreen|
|Shooting Specs||Canon T3i||Ricoh GR III|
|Focus System||Phase-detect AF||On-Sensor Phase-detect|
|Continuous Shooting||3.7 shutter flaps/s||4 shutter flaps/s|
|Time-Lapse Photography||no Intervalometer||Intervalometer built-in|
|Image Stabilization||Lens stabilization only||In-body stabilization|
|Fill Flash||Build-in Flash||no On-Board Flash|
|Storage Medium||SDXC cards||SDXC cards|
|Second Storage Option||Single card slot||Single card slot|
|UHS card support||no||UHS-I|
|Connectivity Specs||Canon T3i||Ricoh GR III|
|USB Connector||USB 2.0||USB 3.0|
|HDMI Port||mini HDMI||no HDMI|
|Microphone Port||External MIC port||no MIC socket|
|Wifi Support||no Wifi||Wifi built-in|
|Bluetooth Support||no Bluetooth||Bluetooth built-in|
|Body Specs||Canon T3i||Ricoh GR III|
|Battery Life (CIPA)||440 shots per charge||200 shots per charge|
|In-Camera Charging||no USB charging||USB charging|
133 x 100 x 80 mm
(5.2 x 3.9 x 3.1 in)
109 x 62 x 33 mm
(4.3 x 2.4 x 1.3 in)
|Camera Weight||570 g (20.1 oz)||257 g (9.1 oz)|
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