Canon 100D versus Canon G7 X
The Canon EOS 100D (called Canon SL1 in some regions) and the Canon PowerShot G7 X are two digital cameras that were revealed to the public, respectively, in March 2013 and September 2014. The 100D is a DSLR, while the G7X is a fixed lens compact. The cameras are based on an APS-C (100D) and an one-inch sensor. The 100D has a resolution of 17.9 megapixel, whereas the G7X provides 20 MP.
The physical size and weight of the Canon 100D and the Canon G7 X 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 dimensions 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 side – the 100D – represents the basis for the calculations 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 Canon G7 X is considerably smaller (42 percent) than the Canon 100D. In this context, it is worth noting that neither the 100D nor the G7X are weather-sealed.
The above size and weight comparisons are to some extent incomplete and possibly misleading, as the G7X 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 comparisons there.
|Camera Body Specifications
|Canon 100D (⇒ rgt)||117 mm||91 mm||69 mm||407 g||380||no||2013||549||discont.||check|
|Canon G7 X (⇒ lft)||103 mm||60 mm||40 mm||304 g||210||no||2014||699||discont.||check|
|Canon G7 X Mark II (⇒ lft | rgt)||106 mm||61 mm||42 mm||319 g||265||no||2016||699||latest||check|
|Canon M3 (⇒ lft | rgt)||111 mm||68 mm||44 mm||366 g||250||no||2015||679||discont.||check|
|Canon T6i (⇒ lft | rgt)||132 mm||101 mm||78 mm||555 g||440||no||2015||749||discont.||check|
|Canon T6s (⇒ lft | rgt)||132 mm||101 mm||78 mm||565 g||440||no||2015||849||discont.||check|
|Canon T5i (⇒ lft | rgt)||133 mm||100 mm||79 mm||580 g||440||no||2013||649||discont.||check|
The listed 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 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.
Of the two cameras under consideration, the Canon 100D features an APS-C sensor and the Canon G7 X an one-inch sensor. The sensor area in the G7X 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 G7X 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 G7X is a somewhat more recent model (by 1 year and 5 months) than the 100D, and its sensor might have benefitted from technological advances during this time that partly offset its pixel-size disadvantage.
Consistent information on actual sensor performance is available from DXO Mark for most cameras. 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"). Of the two cameras under consideration, the G7X has a markedly higher DXO score than the 100D (overall score 8 points higher), which will translate into better image quality. The advantage is based on 1.2 bits higher color depth, 1.4 EV in additional dynamic range, 0.6 stops of reduced low light sensitivity. The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.
|Canon 100D (⇒ rgt)||APS-C||17.9||5184||3456||1080/30p||21.8||11.3||843||63|
|Canon G7 X (⇒ lft)||1-inch||20.0||5472||3648||1080/60p||23.0||12.7||556||71|
|Canon G7 X Mark II (⇒ lft | rgt)||1-inch||20.0||5472||3648||1080/60p||-||-||-||-|
|Canon M3 (⇒ lft | rgt)||APS-C||24.0||6000||4000||1080/30p||22.8||11.8||1169||72|
|Canon T6i (⇒ lft | rgt)||APS-C||24.0||6000||4000||1080/60p||22.7||12.0||919||71|
|Canon T6s (⇒ lft | rgt)||APS-C||24.0||6000||4000||1080/30p||22.6||12.0||915||70|
|Canon T5i (⇒ lft | rgt)||APS-C||17.9||5184||3456||1080/30p||21.7||11.2||681||61|
Many modern cameras cannot only take still pictures, but also record videos. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the G7X provides a faster frame rate than the 100D. It can shoot movie footage at 1080/60p, while the 100D is limited to 1080/30p.
Beyond 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 G7X relies on live view and the rear LCD for framing. The following table reports on some other key feature differences and similarities of the Canon 100D, the Canon G7 X, and comparable cameras. If you need more detail on the specs, you can find comprehensive listings, for example, in the dpreview camera hub.
|Canon 100D (⇒ rgt)||optical||no||3.0||1040||fixed||YES||4000||4.9||9.4||no|
|Canon G7 X (⇒ lft)||no||no||3.0||1040||tilting||YES||2000||6.5||7||no|
|Canon G7 X Mark II (⇒ lft | rgt)||no||no||3.0||1040||tilting||YES||2000||8.0||7||no|
|Canon M3 (⇒ lft | rgt)||no||no||3.0||1040||tilting||YES||4000||4.2||5||no|
|Canon T6i (⇒ lft | rgt)||optical||no||3.0||1040||swivel||YES||4000||5.0||12||no|
|Canon T6s (⇒ lft | rgt)||optical||YES||3.0||1040||swivel||YES||4000||5.0||12||no|
|Canon T5i (⇒ lft | rgt)||optical||no||3.0||1040||swivel||YES||4000||5.0||13||no|
Both the 100D and the G7X have been discontinued, but can regularly be found used on ebay. The 100D was replaced by the Canon 200D, while the G7X was followed by the Canon G7 X Mark II.
So what conclusions can be drawn? Is there a clear favorite between the Canon 100D and the Canon 100D? Below is a summary of the relative strengths of each of the two contestants.
Reasons to prefer the Canon EOS 100D:
- Better low-light sensitivity: Requires less light for good images (0.6 stops ISO advantage).
- Easier framing: Has an optical viewfinder for image framing and settings control.
- Faster shutter: Has a 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 210) on a single battery charge.
- More heavily discounted: Has been on the market for longer (launched in March 2013).
Advantages of the Canon PowerShot G7 X:
- More detail: Has more megapixels (20 vs 17.9MP), which boosts linear resolution by 6%.
- Better image quality: Scores markedly higher (8 points) in the DXO overall evaluation.
- Richer colors: Generates noticeably more natural colors (1.2 bits more color depth).
- More dynamic range: Captures a broader range of light and dark details (1.4 EV of extra DR).
- Better video: Provides higher movie framerates (1080/60p vs 1080/30p).
- More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
- Faster burst: Shoots at higher frequency (6.5 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 (103x60mm 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).
- More modern: Was introduced somewhat (1 year and 5 months) more recently.
If the number of relative strengths (bullet points above) is taken as a guide, the G7X is the clear winner of the contest (11 : 6 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.
In any case, while the specs-based evaluation of cameras is instructive in revealing their potential as photographic tools, it remains incomplete and does no justice, for example, to the way the 100D or the G7X handle or perform in practice. User reviews that are available, for instance, at amazon can sometimes shed light on these issues, but such feedback is all too often partial, inconsistent, and inaccurate. This is why expert reviews are important. The table below summarizes the assessments of some of the best known camera review sites. You can find the full text of the reviews, respectively, at cameralabs.com, dpreview.com, ephotozine.com, imaging-resource.com, and photographyblog.com.
|Canon 100D (⇒ rgt)||Rec||78/100 Gold||4/5||4/5||4/5||2013||549||discont.||check|
|Canon G7 X (⇒ lft)||HiRec||77/100 Silver||4.5/5||3.5/5||4.5/5||2014||699||discont.||check|
|Canon G7 X Mark II (⇒ lft | rgt)||HiRec||81/100 Silver||4.5/5||4/5||4.5/5||2016||699||latest||check|
|Canon M3 (⇒ lft | rgt)||reviewed||75/100||4.5/5||4.5/5||4/5||2015||679||discont.||check|
|Canon T6i (⇒ lft | rgt)||-||75/100||4.5/5||4.5/5||4.5/5||2015||749||discont.||check|
|Canon T6s (⇒ lft | rgt)||Rec||77/100 Silver||4.5/5||4.5/5||4.5/5||2015||849||discont.||check|
|Canon T5i (⇒ lft | rgt)||-||76/100 Silver||4.5/5||4.5/5||4.5/5||2013||649||discont.||check|
The review scores listed above should be treated 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 rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. Also, please note that some of the review sites have changed their methodology and reporting over time.
In case you are interested in seeing how other cameras pair up, just use the search menu below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting. If you do not see the camera that you are looking for, kindly get in touch, and I will try to locate and add the respective data to the application.
- Canon T6 vs Canon 77D
- Canon T6 vs Canon T6s
- Fujifilm GFX 50S vs Sony A7R III
- Fujifilm X-T1 vs Fujifilm X-E2
- Leica TL2 vs Leica Q Typ 116
- Nikon D3300 vs Canon M3
- Nikon D610 vs Nikon D200
- Olympus E-1 vs Panasonic L1
- Olympus E-450 vs Olympus E-520
- Panasonic LX10 vs Fujifilm X100F
- Sony A9 vs Canon M5
- Sony RX100 III vs Panasonic FZ1000