Canon 100D versus Sony RX100 III
The Canon EOS 100D (called Canon SL1 in some regions) and the Sony Cyber-shot DSC-RX100 III are two digital cameras that were revealed to the public, respectively, in March 2013 and May 2014. The 100D is a DSLR, while the RX100 III is a fixed lens compact. The cameras are based on an APS-C (100D) and an one-inch (RX100 III) sensor. The Canon has a resolution of 17.9 megapixel, whereas the Sony provides 20 MP. Read on to find out how these two cameras compare with respect to their size, their sensors, their features, and their reception by expert reviewers.
Body comparison: Canon 100D vs Sony RX100 III
The physical size and weight of the Canon 100D and the Sony RX100 III are illustrated in the side-by-side display below. Three consecutive perspectives from the front, the top, and the back are presented. All width, height and depth measures are rounded to the nearest millimeter. If you prefer, you can also use the toggle button to switch to a comparison in percentage terms (in this case, the camera on the left – the 100D – represents 100 percent across all the size and weight measures).
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony RX100 III is considerably smaller (44 percent) than the Canon 100D. In this context, it is worth noting that neither the 100D nor the RX100 III are weather-sealed.
The above size and weight comparisons are to some extent incomplete and possibly misleading, as the RX100 III has a lens build 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 find an overview of optics for the 100D and their specifications in the Canon EF Lens Catalog.
The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. If you want to switch the focus of the display and review another camera pair, just select a new right or left comparator from among the camera models in the table. Alternatively, you can also move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons there.
|Camera Body Specifications|
|Canon 100D»||4.6 in||3.6 in||2.7 in||14.4 oz||380||n||Mar 2013||549||-|
|Sony RX100 III«||4.0 in||2.3 in||1.6 in||10.2 oz||320||n||May 2014||799||-|
|Canon 4000D« »||5.1 in||4.0 in||3.0 in||15.4 oz||500||n||Feb 2018||399|
|Canon 200D« »||4.8 in||3.7 in||2.8 in||16.0 oz||650||n||Jun 2017||549|
|Canon G5 X« »||4.4 in||3.0 in||1.7 in||12.5 oz||210||n||Oct 2015||799|
|Canon 1200D« »||5.1 in||3.9 in||3.1 in||16.9 oz||500||n||Feb 2014||449||-|
|Canon G7 X« »||4.1 in||2.4 in||1.6 in||10.7 oz||210||n||Sep 2014||699||-|
|Canon 700D« »||5.2 in||3.9 in||3.1 in||20.5 oz||440||n||Mar 2013||649||-|
|Canon G16« »||4.3 in||3.0 in||1.6 in||12.6 oz||360||n||Aug 2013||549|
|Canon M« »||4.3 in||2.6 in||1.3 in||10.5 oz||230||n||Jul 2012||599||-|
|Canon 650D« »||5.2 in||3.9 in||3.1 in||20.3 oz||440||n||Jun 2012||849||-|
|Canon 600D« »||5.2 in||3.9 in||3.1 in||20.1 oz||440||n||Feb 2011||599||-|
|Canon 500D« »||5.1 in||3.9 in||2.4 in||18.3 oz||400||n||Mar 2009||799||-|
|Panasonic FZ1000« »||5.4 in||3.9 in||5.2 in||29.3 oz||360||n||Jun 2014||899||-|
|Panasonic G6« »||4.8 in||3.3 in||2.8 in||13.8 oz||340||n||Apr 2013||599||-|
|Sony RX100 IV« »||4.0 in||2.3 in||1.6 in||10.5 oz||280||n||Jun 2015||999||-|
|Sony RX100 II« »||4.0 in||2.3 in||1.5 in||9.9 oz||350||n||Jun 2013||749||-|
The price is, of course, an important factor in any camera decision. 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.
Sensor comparison: Canon 100D vs Sony RX100 III
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 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 associated with larger, more expensive camera bodies and lenses.
Of the two cameras under consideration, the Canon 100D features an APS-C sensor and the Sony RX100 III an one-inch sensor. The sensor area in the RX100 III is 65 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.6 and 2.7. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
Despite having a smaller sensor, the RX100 III offers a higher resolution of 20 megapixel, compared with 17.9 MP of the 100D. This megapixel advantage comes at the cost of a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 2.41μm versus 4.31μm for the 100D). However, it should be noted that the RX100 III is a somewhat more recent model (by 1 year and 1 month) than the 100D, and its sensor might have benefitted from technological advances during this time that partly offset its pixel-size disadvantage.
For most cameras, data on sensor performance has been reported by DXO Mark. 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. Of the two cameras under consideration, the RX100 III has a markedly higher DXO score than the 100D (overall score 4 points higher), which will translate into better image quality. The advantage is based on 0.6 bits higher color depth, 1 EV in additional dynamic range, 0.8 stops of reduced low light sensitivity. The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.
|Sony RX100 III«||1-inch||20.0||5472||3648||1080/60p||22.4||12.3||495||67|
|Canon 4000D« »||APS-C||17.9||5184||3456||1080/30p||21.9||11.4||695||63|
|Canon 200D« »||APS-C||24.0||6000||4000||1080/60p||23.6||13.4||1041||79|
|Canon G5 X« »||1-inch||20.0||5472||3648||1080/60p||-||-||-||-|
|Canon 1200D« »||APS-C||17.9||5184||3456||1080/30p||21.9||11.3||724||63|
|Canon G7 X« »||1-inch||20.0||5472||3648||1080/60p||23.0||12.7||556||71|
|Canon 700D« »||APS-C||17.9||5184||3456||1080/30p||21.7||11.2||681||61|
|Canon G16« »||1/1.7||12.0||4000||3000||1080/60p||21.0||11.7||230||54|
|Canon M« »||APS-C||17.9||5184||3456||1080/30p||22.1||11.2||827||65|
|Canon 650D« »||APS-C||17.9||5184||3456||1080/30p||21.7||11.2||722||62|
|Canon 600D« »||APS-C||17.9||5184||3456||1080/30p||22.1||11.5||793||65|
|Canon 500D« »||APS-C||15.1||4752||3168||1080/20p||21.7||11.5||663||63|
|Panasonic FZ1000« »||1-inch||20.0||5472||3648||4K/30p||22.1||11.7||517||64|
|Panasonic G6« »||Four Thirds||15.9||4608||3456||1080/60p||21.3||11.5||639||61|
|Sony RX100 IV« »||1-inch||20.0||5472||3648||4K/30p||22.8||12.6||591||70|
|Sony RX100 II« »||1-inch||20.0||5472||3648||1080/60p||22.5||12.4||483||67|
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 RX100 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.
Feature comparison: Canon 100D vs Sony RX100 III
Apart from body and sensor, cameras can and do differ across a variety of features. For example, the RX100 III has an electronic viewfinder (1440k dots), while the 100D has an optical one. Both systems have their advantages, with the electronic viewfinder making it possible to project supplementary shooting information into the framing view, whereas the optical viewfinder offers lag-free viewing and a very clear framing image. The table below summarizes some of the other core capabilities of the Canon 100D and Sony RX100 III in connection with corresponding information for a sample of similar cameras. If you need more detail on the specs, you can find comprehensive listings, for example, in the dpreview camera hub.
|Sony RX100 III«||1440||n||3.0||1229||tilting||n||2000||10.0||Y||Y|
|Canon 4000D« »||optical||n||2.7||230||fixed||n||4000||3.0||Y||n|
|Canon 200D« »||optical||n||3.0||1040||swivel||Y||4000||5.0||Y||n|
|Canon G5 X« »||2360||n||3.0||1040||swivel||Y||2000||5.9||Y||Y|
|Canon 1200D« »||optical||n||3.0||460||fixed||n||4000||3.0||Y||n|
|Canon G7 X« »||-||n||3.0||1040||tilting||Y||2000||6.5||Y||Y|
|Canon 700D« »||optical||n||3.0||1040||swivel||Y||4000||5.0||Y||n|
|Canon G16« »||optical||n||3.0||922||fixed||n||4000||2.2||Y||Y|
|Canon M« »||-||n||3.0||1040||fixed||Y||4000||4.3||n||n|
|Canon 650D« »||optical||n||3.0||1040||swivel||Y||4000||5.0||Y||n|
|Canon 600D« »||optical||n||3.0||1040||swivel||n||4000||3.7||Y||n|
|Canon 500D« »||optical||n||3.0||920||fixed||n||4000||3.4||Y||n|
|Panasonic FZ1000« »||2359||n||3.0||921||swivel||n||4000||12.0||Y||Y|
|Panasonic G6« »||1440||n||3.0||1036||swivel||Y||4000||7.0||Y||n|
|Sony RX100 IV« »||2359||n||3.0||1228||tilting||n||2000||16.0||Y||Y|
|Sony RX100 II« »||-||n||3.0||1229||tilting||n||2000||10.0||Y||Y|
Both the 100D and the RX100 III have been discontinued, but can regularly be found used on eBay. The 100D was replaced by the Canon 200D, while the RX100 III was followed by the Sony RX100 IV.
Review summary: Canon 100D vs Sony RX100 III
So how do things add up? Is there a clear favorite between the Canon 100D and the Sony RX100 III? The listing below highlights the relative strengths of the two models.
Advantages of the Canon EOS 100D:
- Better low-light sensitivity: Requires less light for good images (0.8 stops ISO advantage).
- Brighter framing: Features an optical viewfinder for clear, lag-free composition.
- Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
- Faster shutter: Has higher mechanical shutter speed (4000/sec vs 2000/sec) to freeze action.
- More flexible: Can take a variety of interchangeable lenses, including specialty optics.
- Longer lasting: Can take more shots (380 versus 320) on a single battery charge.
- More heavily discounted: Has been on the market for longer (launched in March 2013).
Reasons to prefer the Sony Cyber-shot DSC-RX100 III:
- More detail: Has more megapixels (20 vs 17.9MP), which boosts linear resolution by 6%.
- Better image quality: Scores markedly higher (4 points) in the DXO overall evaluation.
- More dynamic range: Captures a broader range of light and dark details (1 EV of extra DR).
- Better video: Provides higher movie framerates (1080/60p versus 1080/30p).
- More framing info: Has an electronic viewfinder that displays shooting data.
- More detailed LCD: Has a higher resolution rear screen (1229k vs 1040k dots).
- More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
- Faster burst: Shoots at higher frequency (10 vs 4.9 flaps/sec) to capture the decisive moment.
- Ready to shoot: Comes with an integrated lens, while the 100D requires a separate lens.
- More compact: Is smaller (102x58mm vs 117x91mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight even though it has a lens build in (unlike the 100D).
- Sharper images: Has stabilization technology build-in to reduce the impact of hand-shake.
- More modern: Was introduced somewhat (1 year and 1 month) more recently.
If the number of relative strengths (bullet points above) is taken as a guide, the RX100 III is the clear winner of the contest (13 : 7 points). However, the pertinence of the various camera strengths will differ across photographers, so that you might want to weigh individual camera traits according to their importance for your own imaging needs before making a camera decision.
In any case, while the specs-based evaluation of cameras is instructive in revealing their potential as photographic tools, it remains partial and cannot reveal, for example, the handling experience and imaging performance when actually working with the 100D or the RX100 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 table below summarizes the assessments of some of the best known camera review sites (cameralabs, dpreview, ephotozine, imaging-resource, photographyblog). The detailed reviews can be accessed by clicking on the site logo in the table header.
|Canon 100D»||Rec||78/100||4/5||4/5||4/5||Mar 2013||549||-|
|Sony RX100 III«||HiRec||82/100||4.5/5||4.5/5||5/5||May 2014||799||-|
|Canon 4000D« »||rev||-||-||-||3.5/5||Feb 2018||399|
|Canon 200D« »||HiRec||78/100||4.5/5||4.5/5||4.5/5||Jun 2017||549|
|Canon G5 X« »||HiRec||78/100||4.5/5||4/5||4.5/5||Oct 2015||799|
|Canon 1200D« »||Rec||-||4/5||4/5||4.5/5||Feb 2014||449||-|
|Canon G7 X« »||HiRec||77/100||4.5/5||3.5/5||4.5/5||Sep 2014||699||-|
|Canon 700D« »||-||76/100||4.5/5||4.5/5||4.5/5||Mar 2013||649||-|
|Canon G16« »||Rec||-||4.5/5||4.5/5||4.5/5||Aug 2013||549|
|Canon M« »||Rec||-||4/5||3.5/5||4/5||Jul 2012||599||-|
|Canon 650D« »||HiRec||77/100||4.5/5||4.5/5||4.5/5||Jun 2012||849||-|
|Canon 600D« »||rev||77/100||4.5/5||5/5||4.5/5||Feb 2011||599||-|
|Canon 500D« »||HiRec||74/100||4.5/5||5/5||4.5/5||Mar 2009||799||-|
|Panasonic FZ1000« »||HiRec||82/100||4.5/5||4.5/5||4.5/5||Jun 2014||899||-|
|Panasonic G6« »||HiRec||-||5/5||-||4.5/5||Apr 2013||599||-|
|Sony RX100 IV« »||HiRec||85/100||4/5||4.5/5||4.5/5||Jun 2015||999||-|
|Sony RX100 II« »||HiRec||79/100||4.5/5||5/5||4.5/5||Jun 2013||749||-|
Care should be taken when interpreting the review scores above, 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.
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. An an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool. If the camera you are interested in is not available, please send me an email, and I will try to update the database with the necessary infos.
- Canon 2000D vs Fujifilm X-Pro2
- Canon 200D vs Canon 750D
- Canon 40D vs Panasonic G85
- Canon 500D vs Nikon D200
- Canon 700D vs Fujifilm X100T
- Canon G9 X vs Sony RX10 III
- Fujifilm X100F vs Fujifilm X100
- Nikon D700 vs Nikon D7000
- Olympus E-1 vs Canon T5
- Pentax Q vs Panasonic GH5
- Sony RX10 II vs Leica S Typ 006
- Sony RX100 vs Canon G16