Canon XSi vs Ricoh GR III
The Canon EOS Rebel XSi (called Canon 450D in some regions) and the Ricoh GR III are two digital cameras that were revealed to the public, respectively, in January 2008 and February 2019. The XSi 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 12.2 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 XSi 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.
The physical size and weight of the Canon XSi and the Ricoh GR III are illustrated 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 (47 percent) than the Canon XSi. In this context, it is worth noting that neither the XSi 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 XSi 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 XSi 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 XSi||129 mm||98 mm||62 mm||524 g||500||n||Jan 2008||799|
|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 T6i||132 mm||101 mm||78 mm||555 g||440||n||Feb 2015||749|
|5.||Canon T6s||132 mm||101 mm||78 mm||565 g||440||n||Feb 2015||649|
|6.||Canon T4i||133 mm||100 mm||79 mm||575 g||440||n||Jun 2012||849|
|7.||Canon T3||130 mm||100 mm||78 mm||495 g||700||n||Feb 2011||449|
|8.||Canon T2i||129 mm||98 mm||62 mm||530 g||440||n||Feb 2010||699|
|9.||Canon T1i||129 mm||98 mm||62 mm||520 g||400||n||Mar 2009||799|
|10.||Canon XS||126 mm||98 mm||65 mm||502 g||500||n||Jun 2008||449|
|11.||Canon 40D||146 mm||108 mm||74 mm||822 g||750||n||Aug 2007||1,299|
|12.||Canon XTi||127 mm||84 mm||65 mm||556 g||370||n||Aug 2006||799|
|13.||Canon XT||127 mm||94 mm||64 mm||540 g||400||n||Feb 2005||899|
|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.|
The price is, of course, an important factor in any camera decision. 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. 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. 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. Moreover, a large sensor camera will give the photographer more control over depth-of-field in the image and, thus, the ability to better 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 an APS-C sensor, but their sensors differ slightly in size. The sensor area in the GR III is 12 percent bigger. As a result of these sensor size differences, the cameras have format factors, respectively, of 1.6 (XSi) and 1.5. 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 24MP, the GR III offers a higher resolution than the XSi (12.2MP), but the GR III has smaller individual pixels (pixel pitch of 3.91μm versus 5.19μm for the XSi). Yet, the GR III is a much more recent model (by 11 years and 1 month) than the XSi, 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 XSi are 21.4 x 14.2 inches or 54.3 x 36.2 cm for good quality, 17.1 x 11.4 inches or 43.4 x 28.9 cm for very good quality, and 14.2 x 9.5 inches or 36.2 x 24.1 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 XSi has a native sensitivity range from ISO 100 to ISO 1600. The corresponding ISO settings for the Ricoh GR III are ISO 100 to ISO 102400 (no boost).
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 table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar 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 cannot only take still pictures, but also record videos. The GR III indeed provides for movie recording, while the XSi does not. The highest resolution format that the GR III can use is 1080/60p.
Beyond body and sensor, cameras can and do differ across a range of features. For example, the XSi 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 XSi 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 XSi has one, while the GR III does not. While the built-in flash of the XSi is not very powerful, it can at times be useful as a fill-in light.
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.
The XSi writes its imaging data to SDHC cards, while the GR III uses SDXC cards. The GR III supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the XSi 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 XSi 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 GR III offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the XSi does not provide wifi capability.
The GR III is a recent model that features in the current product line-up of Ricoh. In contrast, the XSi has been discontinued (but can be found pre-owned on eBay). As a replacement in the same line of cameras, the XSi was succeeded by the Canon T1i. 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 the Canon XSi better than the Ricoh GR III or vice versa? Below is a summary of the relative strengths of each of the two contestants.
Reasons to prefer the Canon EOS Rebel XSi:
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- Easier framing: Has an optical viewfinder for image composition and settings control.
- More flexible: Can take a variety of interchangeable lenses, including specialty optics.
- Longer lasting: Can take more shots (500 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 January 2008).
Arguments in favor of the Ricoh GR III:
- More detail: Has more megapixels (24 vs 12.2MP), which boosts linear resolution by 40%.
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- Broader imaging potential: Can capture not only stills but also 1080/60p video.
- Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
- More detailed LCD: Has a higher resolution rear screen (1037k vs 230k dots).
- Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
- Faster burst: Shoots at higher frequency (4 vs 3.5 flaps/sec) to capture the decisive moment.
- Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
- Ready to shoot: Comes with an integrated lens, while the XSi requires a separate lens.
- More compact: Is smaller (109x62mm vs 129x98mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight even though it has a lens built in (unlike the XSi).
- 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 11 years and 1 month of technical progress since the XSi launch.
If the count of individual advantages (bullet points above) is taken as a guide, the GR III is the clear winner of the contest (18 : 6 points). However, the relevance of individual strengths will vary across photographers, so that you might want to apply your own weighing scheme to the summary points when reflecting and deciding 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 XSi 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 remains incomplete and does no justice, for example, to the way the XSi or the GR III perform in practice. 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 why expert reviews are important. The table below provides a synthesis of the camera assessments of some of the best known photo-gear 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 XSi||..||+ +||+ +||4/5||4.5/5||Jan 2008||799|
|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 T6i||5/5||..||75/100||4.5/5||4.5/5||Feb 2015||749|
|5.||Canon T6s||5/5||+||77/100||4.5/5||4.5/5||Feb 2015||649|
|6.||Canon T4i||4/5||+ +||77/100||4.5/5||4.5/5||Jun 2012||849|
|7.||Canon T3||..||80/100||69/100||4/5||4.5/5||Feb 2011||449|
|8.||Canon T2i||..||+ +||77/100||4/5||4.5/5||Feb 2010||699|
|9.||Canon T1i||..||+ +||74/100||4.5/5||4.5/5||Mar 2009||799|
|10.||Canon XS||..||82/100||+ +||3.5/5||4.5/5||Jun 2008||449|
|11.||Canon 40D||..||+ +||+ +||4.5/5||4.5/5||Aug 2007||1,299|
|12.||Canon XTi||..||+ +||+ +||o||4/5||Aug 2006||799|
|13.||Canon XT||..||80/100||+ +||o||..||Feb 2005||899|
|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 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 comparing ratings of very distinct cameras or ones that are far apart in terms of their release date 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? If you would like to see a different side-by-side camera review, just make a corresponding selection in the search boxes below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.
Specifications: Canon XSi 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 XSi||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||January 2008||February 2019|
|Launch Price||USD 799||USD 899|
|Sensor Specs||Canon XSi||Ricoh GR III|
|Sensor Format||APS-C Sensor||APS-C Sensor|
|Sensor Size||22.2 x 14.8 mm||23.5 x 15.6 mm|
|Sensor Area||328.56 mm2||366.6 mm2|
|Sensor Diagonal||26.7 mm||28.2 mm|
|Sensor Resolution||12.2 Megapixels||24 Megapixels|
|Image Resolution||4272 x 2848 pixels||6000 x 4000 pixels|
|Pixel Pitch||5.19 μm||3.91 μm|
|Pixel Density||3.70 MP/cm2||6.55 MP/cm2|
|Moiré control||Anti-Alias filter||no AA filter|
|Movie Capability||no Video||1080/60p Video|
|ISO Setting||100 - 1,600 ISO||100 - 102,400 ISO|
|Image Processor||DIGIC 3||GR Engine VI|
|DXO Sensor Quality (score)||61||..|
|DXO Color Depth (bits)||21.9||..|
|DXO Dynamic Range (EV)||10.8||..|
|DXO Low Light (ISO)||692||..|
|Screen Specs||Canon XSi||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||230k dots||1037k dots|
|LCD Attachment||Fixed screen||Fixed screen|
|Touch Input||no Touchscreen||Touchscreen|
|Shooting Specs||Canon XSi||Ricoh GR III|
|Focus System||Phase-detect AF||On-Sensor Phase-detect|
|Continuous Shooting||3.5 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||SDHC cards||SDXC cards|
|Second Storage Option||Single card slot||Single card slot|
|UHS card support||no||UHS-I|
|Connectivity Specs||Canon XSi||Ricoh GR III|
|USB Connector||USB 2.0||USB 3.0|
|HDMI Port||mini HDMI||no HDMI|
|Wifi Support||no Wifi||Wifi built-in|
|Bluetooth Support||no Bluetooth||Bluetooth built-in|
|Body Specs||Canon XSi||Ricoh GR III|
|Battery Life (CIPA)||500 shots per charge||200 shots per charge|
|In-Camera Charging||no USB charging||USB charging|
129 x 98 x 62 mm
(5.1 x 3.9 x 2.4 in)
109 x 62 x 33 mm
(4.3 x 2.4 x 1.3 in)
|Camera Weight||524 g (18.5 oz)||257 g (9.1 oz)|
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