Canon 100D vs Ricoh GR III
The Canon EOS 100D (called Canon SL1 in some regions) and the Ricoh GR III are two digital cameras that were officially introduced, respectively, in March 2013 and February 2019. The 100D 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.
|Canon 100D||Ricoh GR III|
|Digital single lens reflex||Fixed lens compact camera|
|Canon EF mount lenses||28mm f/2.8|
|17.9 MP, APS-C Sensor||24 MP, APS-C Sensor|
|1080/30p Video||1080/60p Video|
|ISO 100-12800 (100-25600)||ISO 100-102400|
|Optical viewfinder||Viewfinder optional|
|3.0" LCD, 1040k dots||3.0" LCD, 1037k dots|
|Fixed touchscreen||Fixed touchscreen|
|4.9 shutter flaps per second||4 shutter flaps per second|
|Lens stabilization only||In-body stabilization|
|380 shots per battery charge||200 shots per battery charge|
|117 x 91 x 69 mm, 407 g||109 x 62 x 33 mm, 257 g|
Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS 100D 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 100D 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 width, height and depth dimensions are rounded to the nearest millimeter.
The 100D can be obtained in two different colors (black, white), while the GR III is only available in black.
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 (37 percent) than the Canon 100D. In this context, it is worth noting that neither the 100D 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 100D 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 100D 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 following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. In case you want to display and compare another camera duo, just click on the right or left arrow next to the camera that you would like to inspect. Alternatively, you can also use the CAM-parator to select your camera combination among a larger number of options.
|Canon 100D»||117 mm||91 mm||69 mm||407 g||380||n||Mar 2013||549||Canon 100D|
|Ricoh GR III«||109 mm||62 mm||33 mm||257 g||200||n||Feb 2019||899||Ricoh GR III|
|Canon G7 X Mark III« »||105 mm||61 mm||41 mm||304 g||235||n||Jul 2019||749||Canon G7 X Mark III|
|Canon 4000D« »||129 mm||102 mm||77 mm||436 g||500||n||Feb 2018||399||Canon 4000D|
|Canon 200D« »||122 mm||93 mm||70 mm||453 g||650||n||Jun 2017||549||Canon 200D|
|Canon 7D II« »||149 mm||112 mm||78 mm||910 g||670||Y||Sep 2014||1,799||Canon 7D II|
|Canon 1200D« »||130 mm||100 mm||78 mm||480 g||500||n||Feb 2014||449||Canon 1200D|
|Canon 700D« »||133 mm||100 mm||79 mm||580 g||440||n||Mar 2013||649||Canon 700D|
|Canon G16« »||109 mm||76 mm||40 mm||356 g||360||n||Aug 2013||549||Canon G16|
|Canon 650D« »||133 mm||100 mm||79 mm||575 g||440||n||Jun 2012||849||Canon 650D|
|Canon M« »||109 mm||66 mm||32 mm||298 g||230||n||Jul 2012||599||Canon M|
|Canon 600D« »||133 mm||100 mm||80 mm||570 g||440||n||Feb 2011||599||Canon 600D|
|Panasonic TZ200« »||111 mm||65 mm||45 mm||340 g||370||n||Feb 2018||799||Panasonic TZ200|
|Panasonic LX15« »||106 mm||60 mm||42 mm||310 g||260||n||Sep 2016||699||Panasonic LX15|
|Panasonic TZ100« »||111 mm||65 mm||44 mm||312 g||300||n||Jan 2016||699||Panasonic TZ100|
|Panasonic G6« »||122 mm||85 mm||71 mm||390 g||340||n||Apr 2013||599||Panasonic G6|
|Ricoh GR II« »||117 mm||63 mm||35 mm||251 g||320||n||Jun 2015||699||Ricoh GR II|
|Note: Measurements and pricing do not include easily detachable parts, such as interchangeable lenses or optional viewfinders.|
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. 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 size of the imaging sensor is a crucial determinant of image quality. A large sensor will generally have larger individual pixels that offer better low-light sensitivity, provide wider dynamic range, and have richer color-depth than smaller pixels 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 (100D) 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 100D (17.9MP), but the GR III has smaller individual pixels (pixel pitch of 3.91μm versus 4.31μm for the 100D). Yet, the GR III is a much more recent model (by 5 years and 11 months) than the 100D, 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 inch or 76.2 x 50.8 cm, for very good quality (250 dpi) 24 x 16 inch or 61 x 40.6 cm, and for excellent quality (300 dpi) 20 x 13.3 inch or 50.8 x 33.9 cm. The corresponding values for the Canon 100D are 25.9 x 17.3 inch or 65.8 x 43.9 cm for good quality, 20.7 x 13.8 inch or 52.7 x 35.1 cm for very good quality, and 17.3 x 11.5 inch or 43.9 x 29.3 cm for excellent quality prints.
The Canon EOS 100D has a native sensitivity range from ISO 100 to ISO 12800, which can be extended to ISO 100-25600. 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 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 table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.
|Canon 100D||APS-C||17.9||5184||3456||1080/30p||21.8||11.3||843||63||Canon 100D|
|Ricoh GR III||APS-C||24.0||6000||4000||1080/60p||..||..||..||..||Ricoh GR III|
|Canon G7 X Mark III||1-inch||20.0||5472||3648||4K/30p||..||..||..||..||Canon G7 X Mark III|
|Canon 4000D||APS-C||17.9||5184||3456||1080/30p||21.9||11.4||695||63||Canon 4000D|
|Canon 200D||APS-C||24.0||6000||4000||1080/60p||23.6||13.4||1041||79||Canon 200D|
|Canon 7D II||APS-C||20.0||5472||3648||1080/60p||22.4||11.8||1082||70||Canon 7D II|
|Canon 1200D||APS-C||17.9||5184||3456||1080/30p||21.9||11.3||724||63||Canon 1200D|
|Canon 700D||APS-C||17.9||5184||3456||1080/30p||21.7||11.2||681||61||Canon 700D|
|Canon G16||1/1.7||12.0||4000||3000||1080/60p||21.0||11.7||230||54||Canon G16|
|Canon 650D||APS-C||17.9||5184||3456||1080/30p||21.7||11.2||722||62||Canon 650D|
|Canon M||APS-C||17.9||5184||3456||1080/30p||22.1||11.2||827||65||Canon M|
|Canon 600D||APS-C||17.9||5184||3456||1080/30p||22.1||11.5||793||65||Canon 600D|
|Panasonic TZ200||1-inch||20.0||5472||3648||4K/30p||..||..||..||..||Panasonic TZ200|
|Panasonic LX15||1-inch||20.0||5472||3648||4K/30p||..||..||..||..||Panasonic LX15|
|Panasonic TZ100||1-inch||20.0||5472||3648||4K/30p||22.8||12.5||559||70||Panasonic TZ100|
|Panasonic G6||Four Thirds||15.9||4608||3456||1080/60p||21.3||11.5||639||61||Panasonic G6|
|Ricoh GR II||APS-C||16.1||4928||3264||1080/30p||23.6||13.7||1078||80||Ricoh GR II|
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, but the GR III provides a faster frame rate than the 100D. It can shoot movie footage at 1080/60p, while the Canon is limited to 1080/30p.
Apart from body and sensor, cameras can and do differ across a range of features. For example, the 100D 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 adjacent table lists some of the other core features of the Canon 100D and Ricoh GR III along with similar information for a selection of comparators.
|Canon 100D||optical||n||3.0||1040||fixed||Y||1/4000s||4.9||Y||n||Canon 100D|
|Ricoh GR III||optional||n||3.0||1037||fixed||Y||1/4000s||4.0||n||Y||Ricoh GR III|
|Canon G7 X Mark III||none||n||3.0||1040||tilting||Y||1/2000s||30||Y||Y||Canon G7 X Mark III|
|Canon 4000D||optical||n||2.7||230||fixed||n||1/4000s||3.0||Y||n||Canon 4000D|
|Canon 200D||optical||n||3.0||1040||swivel||Y||1/4000s||5.0||Y||n||Canon 200D|
|Canon 7D II||optical||Y||3.0||1040||fixed||n||1/8000s||10.0||Y||n||Canon 7D II|
|Canon 1200D||optical||n||3.0||460||fixed||n||1/4000s||3.0||Y||n||Canon 1200D|
|Canon 700D||optical||n||3.0||1040||swivel||Y||1/4000s||5.0||Y||n||Canon 700D|
|Canon G16||optical||n||3.0||922||fixed||n||1/4000s||2.2||Y||Y||Canon G16|
|Canon 650D||optical||n||3.0||1040||swivel||Y||1/4000s||5.0||Y||n||Canon 650D|
|Canon M||none||n||3.0||1040||fixed||Y||1/4000s||4.3||n||n||Canon M|
|Canon 600D||optical||n||3.0||1040||swivel||n||1/4000s||3.7||Y||n||Canon 600D|
|Panasonic TZ200||2330||n||3.0||1240||fixed||Y||1/2000s||10.0||Y||Y||Panasonic TZ200|
|Panasonic LX15||none||n||3.0||1040||tilting||Y||1/4000s||10.0||Y||Y||Panasonic LX15|
|Panasonic TZ100||1166||n||3.0||1040||fixed||Y||1/2000s||10.0||Y||Y||Panasonic TZ100|
|Panasonic G6||1440||n||3.0||1036||swivel||Y||1/4000s||7.0||Y||n||Panasonic G6|
|Ricoh GR II||optional||n||3.0||1230||fixed||n||1/4000s||4.0||Y||n||Ricoh GR II|
One difference between the cameras concerns the presence of an on-board flash. The 100D has one, while the GR III does not. While the built-in flash of the 100D 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.
Concerning the storage of imaging data, both the 100D and the GR III write their files to SDXC cards. Both cameras can use UHS-I cards, which provide for Ultra High Speed data transfer of 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 100D and Ricoh GR III and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
|Canon 100D||Y||mono||mono||Y||-||mini||2.0||-||-||-||Canon 100D|
|Ricoh GR III||Y||stereo||mono||-||-||none||3.0||Y||-||Y||Ricoh GR III|
|Canon G7 X Mark III||-||stereo||mono||Y||-||micro||3.1||Y||-||Y||Canon G7 X Mark III|
|Canon 4000D||Y||mono||mono||-||-||mini||2.0||Y||Y||-||Canon 4000D|
|Canon 200D||Y||stereo||mono||Y||-||mini||2.0||Y||Y||Y||Canon 200D|
|Canon 7D II||Y||stereo||mono||Y||Y||mini||3.0||-||-||-||Canon 7D II|
|Canon 1200D||Y||mono||mono||-||-||mini||2.0||-||-||-||Canon 1200D|
|Canon 700D||Y||stereo||mono||Y||-||mini||2.0||-||-||-||Canon 700D|
|Canon G16||Y||stereo||mono||-||-||mini||2.0||Y||-||-||Canon G16|
|Canon 650D||Y||stereo||mono||Y||-||mini||2.0||-||-||-||Canon 650D|
|Canon M||Y||stereo||mono||Y||-||mini||2.0||-||-||-||Canon M|
|Canon 600D||Y||mono||mono||Y||-||mini||2.0||-||-||-||Canon 600D|
|Panasonic TZ200||-||stereo||mono||-||-||micro||2.0||Y||-||Y||Panasonic TZ200|
|Panasonic LX15||-||stereo||mono||-||-||micro||2.0||Y||-||-||Panasonic LX15|
|Panasonic TZ100||-||stereo||mono||-||-||micro||2.0||Y||-||-||Panasonic TZ100|
|Panasonic G6||Y||stereo||mono||Y||-||mini||2.0||Y||Y||-||Panasonic G6|
|Ricoh GR II||Y||stereo||mono||-||-||micro||2.0||Y||Y||-||Ricoh GR II|
It is notable that the 100D 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 100D has been discontinued (but it can be found pre-owned on eBay). As a replacement in the same line of cameras, the 100D was succeeded by the Canon 200D. 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 what is the bottom line? Which of the two cameras – the Canon 100D or the Ricoh GR III – has the upper hand? Is one clearly better than the other? The listing below highlights the relative strengths of the two models.
Advantages of the Canon EOS 100D:
- 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.
- Faster burst: Shoots at higher frequency (4.9 vs 4 flaps/sec) to capture the decisive moment.
- More flexible: Can take a variety of interchangeable lenses, including specialty optics.
- Longer lasting: Can take more shots (380 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 March 2013).
Arguments in favor of 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).
- Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
- Ready to shoot: Comes with an integrated lens, while the 100D requires a separate lens.
- More compact: Is smaller (109x62mm vs 117x91mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight even though it has a lens built in (unlike the 100D).
- 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.
- More modern: Reflects 5 years and 11 months of technical progress since the 100D 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 (12 : 8 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 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 100D 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 the spec-sheets of cameras can offer a general idea of their imaging potential, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the 100D or the GR III. 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 (cameralabs, dpreview, ephotozine, imaging-resource, and photographyblog). 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.
The above review scores should be interpreted 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, 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 use the search menu below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.
- Canon 100D vs Canon 1Ds Mark III
- Canon 100D vs Fujifilm X-M1
- Canon 100D vs Nikon D7100
- Canon 100D vs Panasonic FZ150
- Canon 100D vs Sony HX90V
- Canon 250D vs Ricoh GR III
- Canon S120 vs Ricoh GR III
- Hasselblad X1D vs Ricoh GR III
- Leica D-LUX Typ 109 vs Ricoh GR III
- Panasonic G1 vs Ricoh GR III
- Ricoh GR III vs Sony A9 II
- Ricoh GR III vs Sony RX100 VI
Specifications: Canon 100D 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 100D||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||March 2013||February 2019|
|Launch Price||USD 549||USD 899|
|Sensor Specs||Canon 100D||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||100-12800 ISO||100-102400 ISO|
|ISO Boost||100-25600 ISO||no Enhancement|
|Image Processor||DIGIC 5||GR Engine VI|
|DXO Sensor Quality (score)||63||..|
|DXO Color Depth (bits)||21.8||..|
|DXO Dynamic Range (EV)||11.3||..|
|DXO Low Light (ISO)||843||..|
|Screen Specs||Canon 100D||Ricoh GR III|
|Viewfinder Type||Optical viewfinder||Viewfinder optional|
|Viewfinder Field of View||95%|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0 inch||3.0 inch|
|LCD Resolution||1040k dots||1037k dots|
|LCD Attachment||Fixed screen||Fixed screen|
|Shooting Specs||Canon 100D||Ricoh GR III|
|Autofocus System||Phase-detect AF||On-Sensor Phase-detect|
|Continuous Shooting||4.9 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||UHS-I||UHS-I|
|Connectivity Specs||Canon 100D||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 100D||Ricoh GR III|
|Battery Life (CIPA)||380 shots per charge||200 shots per charge|
|In-Camera Charging||no USB charging||USB charging|
117 x 91 x 69 mm
(4.6 x 3.6 x 2.7 in)
109 x 62 x 33 mm
(4.3 x 2.4 x 1.3 in)
|Camera Weight||407 g (14.4 oz)||257 g (9.1 oz)|
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